spectroscopy of rare earth doped glasses....
TRANSCRIPT
![Page 1: Spectroscopy of Rare Earth Doped Glasses. (2)indico.ictp.it/event/a06183/session/32/contribution/22/... · 2014. 5. 5. · Spectroscopy of Rare Earth Doped Glasses Lessons Plan Part](https://reader036.vdocuments.mx/reader036/viewer/2022071401/60ebeb446c909d7a87295b0f/html5/thumbnails/1.jpg)
��� ���� � ��
������ ������� �� ����� ������� ����� ������ ����������
�� � �� �������� ����
������������ �� ���� ����� ����� �������
����� ��
�������� �� �� �����
���������� �� ������������������� ������� �� ����������
������� ��� ������
![Page 2: Spectroscopy of Rare Earth Doped Glasses. (2)indico.ictp.it/event/a06183/session/32/contribution/22/... · 2014. 5. 5. · Spectroscopy of Rare Earth Doped Glasses Lessons Plan Part](https://reader036.vdocuments.mx/reader036/viewer/2022071401/60ebeb446c909d7a87295b0f/html5/thumbnails/2.jpg)
Spectroscopy of Rare Earth Doped Glasses
Anderson S. L. [email protected]
Department of PhysicsUniversidade Federal de Pernambuco
Recife, PE, Brazil
Lecture II
![Page 3: Spectroscopy of Rare Earth Doped Glasses. (2)indico.ictp.it/event/a06183/session/32/contribution/22/... · 2014. 5. 5. · Spectroscopy of Rare Earth Doped Glasses Lessons Plan Part](https://reader036.vdocuments.mx/reader036/viewer/2022071401/60ebeb446c909d7a87295b0f/html5/thumbnails/3.jpg)
Spectroscopy of Rare Earth Doped Glasses
Lessons Plan
Part II – Upconversion spectroscopyand Applications of REDG
II.1 Up-conversion Spectroscopy II.2 REDG Ceramics
Applications of REDGII.3 REDG for LasersII.4 REDG for Fiber Lasers and AmplifiersII.5 REDG Planar and Channel WaveguidesII.6 REDG Microbarcodes
Literature
![Page 4: Spectroscopy of Rare Earth Doped Glasses. (2)indico.ictp.it/event/a06183/session/32/contribution/22/... · 2014. 5. 5. · Spectroscopy of Rare Earth Doped Glasses Lessons Plan Part](https://reader036.vdocuments.mx/reader036/viewer/2022071401/60ebeb446c909d7a87295b0f/html5/thumbnails/4.jpg)
Upconversion spectroscopy
II.1 UpconversionSpectroscopy
![Page 5: Spectroscopy of Rare Earth Doped Glasses. (2)indico.ictp.it/event/a06183/session/32/contribution/22/... · 2014. 5. 5. · Spectroscopy of Rare Earth Doped Glasses Lessons Plan Part](https://reader036.vdocuments.mx/reader036/viewer/2022071401/60ebeb446c909d7a87295b0f/html5/thumbnails/5.jpg)
II.1 UpconversionSpectroscopy
Energy Transfer
![Page 6: Spectroscopy of Rare Earth Doped Glasses. (2)indico.ictp.it/event/a06183/session/32/contribution/22/... · 2014. 5. 5. · Spectroscopy of Rare Earth Doped Glasses Lessons Plan Part](https://reader036.vdocuments.mx/reader036/viewer/2022071401/60ebeb446c909d7a87295b0f/html5/thumbnails/6.jpg)
R-2 dependence allows long range energy diffusion photon trapping effects
Photon trapping increases apparent experimental lifetime!
II.1 UpconversionSpectroscopy
![Page 7: Spectroscopy of Rare Earth Doped Glasses. (2)indico.ictp.it/event/a06183/session/32/contribution/22/... · 2014. 5. 5. · Spectroscopy of Rare Earth Doped Glasses Lessons Plan Part](https://reader036.vdocuments.mx/reader036/viewer/2022071401/60ebeb446c909d7a87295b0f/html5/thumbnails/7.jpg)
Let us take as example case 1(b)
For dipole-dipole interaction, the transfer probability can be written as (Förster, 1948) :
(Dexter, 1953)
II.1 UpconversionSpectroscopy
![Page 8: Spectroscopy of Rare Earth Doped Glasses. (2)indico.ictp.it/event/a06183/session/32/contribution/22/... · 2014. 5. 5. · Spectroscopy of Rare Earth Doped Glasses Lessons Plan Part](https://reader036.vdocuments.mx/reader036/viewer/2022071401/60ebeb446c909d7a87295b0f/html5/thumbnails/8.jpg)
Mechanisms for upconversion
Single ion resonant processes
(a) Sequential TPA (Two photon absorption) (or more!)(b) SHG (second harmonic generation)
(c) TPAII.1 UpconversionSpectroscopy
![Page 9: Spectroscopy of Rare Earth Doped Glasses. (2)indico.ictp.it/event/a06183/session/32/contribution/22/... · 2014. 5. 5. · Spectroscopy of Rare Earth Doped Glasses Lessons Plan Part](https://reader036.vdocuments.mx/reader036/viewer/2022071401/60ebeb446c909d7a87295b0f/html5/thumbnails/9.jpg)
Two ions resonant processes
II.1 UpconversionSpectroscopy
![Page 10: Spectroscopy of Rare Earth Doped Glasses. (2)indico.ictp.it/event/a06183/session/32/contribution/22/... · 2014. 5. 5. · Spectroscopy of Rare Earth Doped Glasses Lessons Plan Part](https://reader036.vdocuments.mx/reader036/viewer/2022071401/60ebeb446c909d7a87295b0f/html5/thumbnails/10.jpg)
II.1 UpconversionSpectroscopy
Two photon upconversion processes efficiencies
![Page 11: Spectroscopy of Rare Earth Doped Glasses. (2)indico.ictp.it/event/a06183/session/32/contribution/22/... · 2014. 5. 5. · Spectroscopy of Rare Earth Doped Glasses Lessons Plan Part](https://reader036.vdocuments.mx/reader036/viewer/2022071401/60ebeb446c909d7a87295b0f/html5/thumbnails/11.jpg)
II.1 UpconversionSpectroscopy
![Page 12: Spectroscopy of Rare Earth Doped Glasses. (2)indico.ictp.it/event/a06183/session/32/contribution/22/... · 2014. 5. 5. · Spectroscopy of Rare Earth Doped Glasses Lessons Plan Part](https://reader036.vdocuments.mx/reader036/viewer/2022071401/60ebeb446c909d7a87295b0f/html5/thumbnails/12.jpg)
II.1 UpconversionSpectroscopy
![Page 13: Spectroscopy of Rare Earth Doped Glasses. (2)indico.ictp.it/event/a06183/session/32/contribution/22/... · 2014. 5. 5. · Spectroscopy of Rare Earth Doped Glasses Lessons Plan Part](https://reader036.vdocuments.mx/reader036/viewer/2022071401/60ebeb446c909d7a87295b0f/html5/thumbnails/13.jpg)
IR pumped upconversion in thulium doped fiber
II.1 UpconversionSpectroscopy
![Page 14: Spectroscopy of Rare Earth Doped Glasses. (2)indico.ictp.it/event/a06183/session/32/contribution/22/... · 2014. 5. 5. · Spectroscopy of Rare Earth Doped Glasses Lessons Plan Part](https://reader036.vdocuments.mx/reader036/viewer/2022071401/60ebeb446c909d7a87295b0f/html5/thumbnails/14.jpg)
Cross relaxation
II.1 UpconversionSpectroscopy
• Leads to FLUORESCENCE QUENCHING
•Strong dependence on ions concentration
![Page 15: Spectroscopy of Rare Earth Doped Glasses. (2)indico.ictp.it/event/a06183/session/32/contribution/22/... · 2014. 5. 5. · Spectroscopy of Rare Earth Doped Glasses Lessons Plan Part](https://reader036.vdocuments.mx/reader036/viewer/2022071401/60ebeb446c909d7a87295b0f/html5/thumbnails/15.jpg)
R. Balda, Fernándeza, I. Saéz de Ocáriza, J. L. Adam, A. Mendioroz and E. MontoyaOpt. Mat. 13, 159-165 (1999)
II.1 UpconversionSpectroscopy
![Page 16: Spectroscopy of Rare Earth Doped Glasses. (2)indico.ictp.it/event/a06183/session/32/contribution/22/... · 2014. 5. 5. · Spectroscopy of Rare Earth Doped Glasses Lessons Plan Part](https://reader036.vdocuments.mx/reader036/viewer/2022071401/60ebeb446c909d7a87295b0f/html5/thumbnails/16.jpg)
II.1 UpconversionSpectroscopy
![Page 17: Spectroscopy of Rare Earth Doped Glasses. (2)indico.ictp.it/event/a06183/session/32/contribution/22/... · 2014. 5. 5. · Spectroscopy of Rare Earth Doped Glasses Lessons Plan Part](https://reader036.vdocuments.mx/reader036/viewer/2022071401/60ebeb446c909d7a87295b0f/html5/thumbnails/17.jpg)
II.1 UpconversionSpectroscopy
![Page 18: Spectroscopy of Rare Earth Doped Glasses. (2)indico.ictp.it/event/a06183/session/32/contribution/22/... · 2014. 5. 5. · Spectroscopy of Rare Earth Doped Glasses Lessons Plan Part](https://reader036.vdocuments.mx/reader036/viewer/2022071401/60ebeb446c909d7a87295b0f/html5/thumbnails/18.jpg)
II.1 UpconversionSpectroscopy
![Page 19: Spectroscopy of Rare Earth Doped Glasses. (2)indico.ictp.it/event/a06183/session/32/contribution/22/... · 2014. 5. 5. · Spectroscopy of Rare Earth Doped Glasses Lessons Plan Part](https://reader036.vdocuments.mx/reader036/viewer/2022071401/60ebeb446c909d7a87295b0f/html5/thumbnails/19.jpg)
II.1 UpconversionSpectroscopy
![Page 20: Spectroscopy of Rare Earth Doped Glasses. (2)indico.ictp.it/event/a06183/session/32/contribution/22/... · 2014. 5. 5. · Spectroscopy of Rare Earth Doped Glasses Lessons Plan Part](https://reader036.vdocuments.mx/reader036/viewer/2022071401/60ebeb446c909d7a87295b0f/html5/thumbnails/20.jpg)
II.1 UpconversionSpectroscopy
![Page 21: Spectroscopy of Rare Earth Doped Glasses. (2)indico.ictp.it/event/a06183/session/32/contribution/22/... · 2014. 5. 5. · Spectroscopy of Rare Earth Doped Glasses Lessons Plan Part](https://reader036.vdocuments.mx/reader036/viewer/2022071401/60ebeb446c909d7a87295b0f/html5/thumbnails/21.jpg)
Cooperative absorption
II.1 UpconversionSpectroscopy
See more in Auzel’s review article
![Page 22: Spectroscopy of Rare Earth Doped Glasses. (2)indico.ictp.it/event/a06183/session/32/contribution/22/... · 2014. 5. 5. · Spectroscopy of Rare Earth Doped Glasses Lessons Plan Part](https://reader036.vdocuments.mx/reader036/viewer/2022071401/60ebeb446c909d7a87295b0f/html5/thumbnails/22.jpg)
Photon avalanche
II.1 UpconversionSpectroscopy
Case, W. E.; Koch, M. E.; Kueny, A. W. J. Lumin. 1990, 45, 351.
![Page 23: Spectroscopy of Rare Earth Doped Glasses. (2)indico.ictp.it/event/a06183/session/32/contribution/22/... · 2014. 5. 5. · Spectroscopy of Rare Earth Doped Glasses Lessons Plan Part](https://reader036.vdocuments.mx/reader036/viewer/2022071401/60ebeb446c909d7a87295b0f/html5/thumbnails/23.jpg)
II.1 UpconversionSpectroscopy
![Page 24: Spectroscopy of Rare Earth Doped Glasses. (2)indico.ictp.it/event/a06183/session/32/contribution/22/... · 2014. 5. 5. · Spectroscopy of Rare Earth Doped Glasses Lessons Plan Part](https://reader036.vdocuments.mx/reader036/viewer/2022071401/60ebeb446c909d7a87295b0f/html5/thumbnails/24.jpg)
II.1 UpconversionSpectroscopy
REDG CeramicsSeveral products:
Cook-top panelsdinnerwareelectronicsmedicinedentistry
•Tough materials•Zero ou negative thermal
expansion•Can be madeTRANSPARENT!
http://www.ch.seikei.ac.jp/kojima/Environmental/index%201.htm
![Page 25: Spectroscopy of Rare Earth Doped Glasses. (2)indico.ictp.it/event/a06183/session/32/contribution/22/... · 2014. 5. 5. · Spectroscopy of Rare Earth Doped Glasses Lessons Plan Part](https://reader036.vdocuments.mx/reader036/viewer/2022071401/60ebeb446c909d7a87295b0f/html5/thumbnails/25.jpg)
REDG Ceramics
II.2 REDG Ceramics
Rare Earth doped transparent glass-ceramicsM. Mortier, M. Génotelle, G. Patriarche
http://www.solgel.com/articles/Dec00/glass/envitromm.html
![Page 26: Spectroscopy of Rare Earth Doped Glasses. (2)indico.ictp.it/event/a06183/session/32/contribution/22/... · 2014. 5. 5. · Spectroscopy of Rare Earth Doped Glasses Lessons Plan Part](https://reader036.vdocuments.mx/reader036/viewer/2022071401/60ebeb446c909d7a87295b0f/html5/thumbnails/26.jpg)
II.1 UpconversionSpectroscopy
REDG Ceramics
•Crystal sizes well below incident light wavelength present negligible attenuation due to scattering!(Rayleigh-Gans theory).
•Requires a refractive index difference <0.1between amorphous and crystalline phases.
Driving applications:
large telescope mirror blanksliquid crystal displayssolar cellsphotonic devices (lasers, amplifiers,
upconverters, etc)
![Page 27: Spectroscopy of Rare Earth Doped Glasses. (2)indico.ictp.it/event/a06183/session/32/contribution/22/... · 2014. 5. 5. · Spectroscopy of Rare Earth Doped Glasses Lessons Plan Part](https://reader036.vdocuments.mx/reader036/viewer/2022071401/60ebeb446c909d7a87295b0f/html5/thumbnails/27.jpg)
II.2 REDG Ceramics
Rare Earth doped transparent glass-ceramicsM. Mortier, M. Génotelle, G. Patriarche
Germanate oxyfluorides glass of the family :(50GeO250-yPbOyPbF2+xErF3)
y, y=[10,20] x=[0,4]
![Page 28: Spectroscopy of Rare Earth Doped Glasses. (2)indico.ictp.it/event/a06183/session/32/contribution/22/... · 2014. 5. 5. · Spectroscopy of Rare Earth Doped Glasses Lessons Plan Part](https://reader036.vdocuments.mx/reader036/viewer/2022071401/60ebeb446c909d7a87295b0f/html5/thumbnails/28.jpg)
Rare Earth doped transparent glass-ceramicsM. Mortier, M. Génotelle, G. Patriarche
II.2 REDG Ceramics
![Page 29: Spectroscopy of Rare Earth Doped Glasses. (2)indico.ictp.it/event/a06183/session/32/contribution/22/... · 2014. 5. 5. · Spectroscopy of Rare Earth Doped Glasses Lessons Plan Part](https://reader036.vdocuments.mx/reader036/viewer/2022071401/60ebeb446c909d7a87295b0f/html5/thumbnails/29.jpg)
Other glass ceramics:
Silicate oxyfluorideTellurite oxyhallidesand more (see M C G review).
II.2 REDG Ceramics
![Page 30: Spectroscopy of Rare Earth Doped Glasses. (2)indico.ictp.it/event/a06183/session/32/contribution/22/... · 2014. 5. 5. · Spectroscopy of Rare Earth Doped Glasses Lessons Plan Part](https://reader036.vdocuments.mx/reader036/viewer/2022071401/60ebeb446c909d7a87295b0f/html5/thumbnails/30.jpg)
Applications of REDG
II.3 REDG for LasersII.4 REDG for Fiber Lasers and
AmplifiersII.5 REDG Planar and Channel
WaveguidesII.6 REDG Microbarcodes
![Page 31: Spectroscopy of Rare Earth Doped Glasses. (2)indico.ictp.it/event/a06183/session/32/contribution/22/... · 2014. 5. 5. · Spectroscopy of Rare Earth Doped Glasses Lessons Plan Part](https://reader036.vdocuments.mx/reader036/viewer/2022071401/60ebeb446c909d7a87295b0f/html5/thumbnails/31.jpg)
REDG for LasersNd:YAG (crystal), Nd:Glass
II.3 REDG forLASERS
![Page 32: Spectroscopy of Rare Earth Doped Glasses. (2)indico.ictp.it/event/a06183/session/32/contribution/22/... · 2014. 5. 5. · Spectroscopy of Rare Earth Doped Glasses Lessons Plan Part](https://reader036.vdocuments.mx/reader036/viewer/2022071401/60ebeb446c909d7a87295b0f/html5/thumbnails/32.jpg)
Typical pump geometries
II.3 REDG forLASERS
![Page 33: Spectroscopy of Rare Earth Doped Glasses. (2)indico.ictp.it/event/a06183/session/32/contribution/22/... · 2014. 5. 5. · Spectroscopy of Rare Earth Doped Glasses Lessons Plan Part](https://reader036.vdocuments.mx/reader036/viewer/2022071401/60ebeb446c909d7a87295b0f/html5/thumbnails/33.jpg)
Niche application
II.3 REDG forLASERS
![Page 34: Spectroscopy of Rare Earth Doped Glasses. (2)indico.ictp.it/event/a06183/session/32/contribution/22/... · 2014. 5. 5. · Spectroscopy of Rare Earth Doped Glasses Lessons Plan Part](https://reader036.vdocuments.mx/reader036/viewer/2022071401/60ebeb446c909d7a87295b0f/html5/thumbnails/34.jpg)
REDG for Fiber Lasers and Amplifiers
II.3 REDG forFiber Lasersand amplifiers
![Page 35: Spectroscopy of Rare Earth Doped Glasses. (2)indico.ictp.it/event/a06183/session/32/contribution/22/... · 2014. 5. 5. · Spectroscopy of Rare Earth Doped Glasses Lessons Plan Part](https://reader036.vdocuments.mx/reader036/viewer/2022071401/60ebeb446c909d7a87295b0f/html5/thumbnails/35.jpg)
REDG for Fiber Lasers and Amplifiers
II.3 REDG forFiber Lasersand amplifiers
![Page 36: Spectroscopy of Rare Earth Doped Glasses. (2)indico.ictp.it/event/a06183/session/32/contribution/22/... · 2014. 5. 5. · Spectroscopy of Rare Earth Doped Glasses Lessons Plan Part](https://reader036.vdocuments.mx/reader036/viewer/2022071401/60ebeb446c909d7a87295b0f/html5/thumbnails/36.jpg)
II.3 REDG forFiber Lasersand amplifiers
![Page 37: Spectroscopy of Rare Earth Doped Glasses. (2)indico.ictp.it/event/a06183/session/32/contribution/22/... · 2014. 5. 5. · Spectroscopy of Rare Earth Doped Glasses Lessons Plan Part](https://reader036.vdocuments.mx/reader036/viewer/2022071401/60ebeb446c909d7a87295b0f/html5/thumbnails/37.jpg)
II.3 REDG forFiber Lasersand amplifiers
![Page 38: Spectroscopy of Rare Earth Doped Glasses. (2)indico.ictp.it/event/a06183/session/32/contribution/22/... · 2014. 5. 5. · Spectroscopy of Rare Earth Doped Glasses Lessons Plan Part](https://reader036.vdocuments.mx/reader036/viewer/2022071401/60ebeb446c909d7a87295b0f/html5/thumbnails/38.jpg)
Thulium doped upconversion fiber laser
II.3 REDG forFiber Lasersand amplifiers
![Page 39: Spectroscopy of Rare Earth Doped Glasses. (2)indico.ictp.it/event/a06183/session/32/contribution/22/... · 2014. 5. 5. · Spectroscopy of Rare Earth Doped Glasses Lessons Plan Part](https://reader036.vdocuments.mx/reader036/viewer/2022071401/60ebeb446c909d7a87295b0f/html5/thumbnails/39.jpg)
Fiber Amplifiers
II.3 REDG forFiber Lasersand amplifiers
![Page 40: Spectroscopy of Rare Earth Doped Glasses. (2)indico.ictp.it/event/a06183/session/32/contribution/22/... · 2014. 5. 5. · Spectroscopy of Rare Earth Doped Glasses Lessons Plan Part](https://reader036.vdocuments.mx/reader036/viewer/2022071401/60ebeb446c909d7a87295b0f/html5/thumbnails/40.jpg)
Optical Amplifiers Diversity
REDFA, such as:
4I11/2
4I13/2
4I15/2
EDFA
3F2&3
3H4
3F43H5
3H6
TDFA
1G4
3F4
3H5
3H4
PDFAII.3 REDG forFiber Lasersand amplifiers
parallel
MU
X MU
Xparallel
MU
X MU
Xseriesseries
HYBRIDS
![Page 41: Spectroscopy of Rare Earth Doped Glasses. (2)indico.ictp.it/event/a06183/session/32/contribution/22/... · 2014. 5. 5. · Spectroscopy of Rare Earth Doped Glasses Lessons Plan Part](https://reader036.vdocuments.mx/reader036/viewer/2022071401/60ebeb446c909d7a87295b0f/html5/thumbnails/41.jpg)
1200 1300 1400 1500 1600 1700
0,0
0,2
0,4
0,6
0,8
1,0 Tm3+ (f12)3H4 -> 3F4
0.1% Tm2O
3 in Germanate-Glass
0.2% Tm3+ in ZBLAN 810 nm Laser Line
(2nd Harmonic)
Em
issi
on In
tens
ity [a
.u.]
Wavelength [nm]
II.3 REDG forFiber Lasersand amplifiers
Importance of the host glass
![Page 42: Spectroscopy of Rare Earth Doped Glasses. (2)indico.ictp.it/event/a06183/session/32/contribution/22/... · 2014. 5. 5. · Spectroscopy of Rare Earth Doped Glasses Lessons Plan Part](https://reader036.vdocuments.mx/reader036/viewer/2022071401/60ebeb446c909d7a87295b0f/html5/thumbnails/42.jpg)
+ S-band emission: 3H4 → 3F4
+ Conversion efficiency+ Low loss in non-operation+ Diode pump sources
– Multi-phonon relaxation– Material reliability– Lifetime bottleneck– Complex pump schemes
Importance of understanding REES-band (1450nm-1510nm) TDFA
3F2&3
3H4
3H5
3F4
3H6
1400 1425 1450 1475 1500 1525-0,5
0,0
0,5
1,0
1,5
2,0
2,5
3,0
3,5
Inte
nsity
(a. u
.)
Wavelength (nm)
II.3 REDG forFiber Lasersand amplifiers
![Page 43: Spectroscopy of Rare Earth Doped Glasses. (2)indico.ictp.it/event/a06183/session/32/contribution/22/... · 2014. 5. 5. · Spectroscopy of Rare Earth Doped Glasses Lessons Plan Part](https://reader036.vdocuments.mx/reader036/viewer/2022071401/60ebeb446c909d7a87295b0f/html5/thumbnails/43.jpg)
TDFA TDFA –– Pumping SchemesPumping SchemesSingle wavelength pumpSingle wavelength pump
3F2
3H4
3H5
3F4
3H6
0,48µm
2,3µm
3F3
1G4
1,05µm 1,9µm 0,8µm
1,05µm
1,05µm
1,47µm 4
8
12
16
20
1,41µm
1,41µm
1,47µm
1,41µm
2,3µm
1,9µm 0,8µm
•Komukai and co-workers, IEEE J.Quant. Electr. 31, 1880 (1995).
•Aozasa and co-workers, Elect. Lett. 37, 1157 (2001).
1455 1460 1465 1470 1475 1480 1485 14900
2
4
6
NF
[dB]
Wavelength [nm]
0
2
4
6
8
10
12
14
16
18
Gai
n [d
B]
Gain and NF as function of the signal wavelength. The pump powers are:
400mW, 300mW and 150mW.
II.3 REDG forFiber Lasersand amplifiers
![Page 44: Spectroscopy of Rare Earth Doped Glasses. (2)indico.ictp.it/event/a06183/session/32/contribution/22/... · 2014. 5. 5. · Spectroscopy of Rare Earth Doped Glasses Lessons Plan Part](https://reader036.vdocuments.mx/reader036/viewer/2022071401/60ebeb446c909d7a87295b0f/html5/thumbnails/44.jpg)
1410nm1240nmRef. [1]
10501410[2]
10601560[3]
14101560[4]
1410800[5]
1050800[6]
1400690[7]
1050690[7]
3 F 23 F 33 F 4
3 H53 H4
3 H6
3 F 23 F 33 F 4
3 H53 H4
3 H6
Dual-wavelength pump schemes (preferred, more efficient)
References[1] F. Roy, Electron. Lett. 37, 2001, 943[2] B. Cole, Proc. OFC 2001, paper TuQ3[3] T. Kasamatsu, Opt. Lett. 24, 1999, 1684[4] T. Kasamatsu, Photon. Technol. Lett. 13, 2001, 433[5] F. Roy, OSA TOP, 60, 2001, 24[6] A.S.L. Gomes, Opt. Lett. 28, 2003, 334[7] S.S-H. Yam, Proc. OFC 2005, paper OWF4
. ,
II.3 REDG forFiber Lasersand amplifiers
![Page 45: Spectroscopy of Rare Earth Doped Glasses. (2)indico.ictp.it/event/a06183/session/32/contribution/22/... · 2014. 5. 5. · Spectroscopy of Rare Earth Doped Glasses Lessons Plan Part](https://reader036.vdocuments.mx/reader036/viewer/2022071401/60ebeb446c909d7a87295b0f/html5/thumbnails/45.jpg)
800nm 1050nm
1470nm
3F23F3
3H4
3H5
3H6
3F4
FB2 9:15am POST-DEADLINE OFC 2002
Novel dual wavelength (1050 nm + 800 nm)pumping scheme for thulium doped fiber amplifiersA.S.L.Gomes, M.L. Sundheimer, M.T.Carvalho, J.F. Martins-Filho, C.J.A.Bastos-Filho, Univ. Federal de Pernambuco,Brazil; W. Margulis, ACREO, Sweden.Contact e-mail: [email protected]
800nmGSA – Populates directly the higher amplifying level
1050nmESA - Depopulates the lower level + populate the higher level
800nm+1050nm Pump Scheme for TDFA800nm+1050nm Pump Scheme for TDFA
II.3 REDG forFiber Lasersand amplifiers
![Page 46: Spectroscopy of Rare Earth Doped Glasses. (2)indico.ictp.it/event/a06183/session/32/contribution/22/... · 2014. 5. 5. · Spectroscopy of Rare Earth Doped Glasses Lessons Plan Part](https://reader036.vdocuments.mx/reader036/viewer/2022071401/60ebeb446c909d7a87295b0f/html5/thumbnails/46.jpg)
Single pumped:1050nm (80mW)
Dual pumped:1050nm (80mW)+800nm (73mW)
Dual pumpedNoise figure
Results for the 800+1050nm pumping schemeResults for the 800+1050nm pumping scheme
L = 18m, 2000ppm ZBLAN, Ps= L = 18m, 2000ppm ZBLAN, Ps= --27dBm27dBm
1460 1470 1480 1490 15000
5
10
15
20
25
Fibe
r Gai
n an
d NF
[dB]
Signal wavelength [nm]
TuneableS-bandLaser
Yb-fiber Laser1050nm or
1410nm Raman Laser Ti:S Laser
~800nm
WDMTDF
Isolator
OSA
TuneableS-bandLaser
Yb-fiber Laser1050nm or
1410nm Raman Laser Ti:S Laser
~800nm
WDMTDF
Isolator
OSA
II.3 REDG forFiber Lasersand amplifiers
![Page 47: Spectroscopy of Rare Earth Doped Glasses. (2)indico.ictp.it/event/a06183/session/32/contribution/22/... · 2014. 5. 5. · Spectroscopy of Rare Earth Doped Glasses Lessons Plan Part](https://reader036.vdocuments.mx/reader036/viewer/2022071401/60ebeb446c909d7a87295b0f/html5/thumbnails/47.jpg)
II.3 REDG forFiber Lasersand amplifiers
Fiber Amplifiers
![Page 48: Spectroscopy of Rare Earth Doped Glasses. (2)indico.ictp.it/event/a06183/session/32/contribution/22/... · 2014. 5. 5. · Spectroscopy of Rare Earth Doped Glasses Lessons Plan Part](https://reader036.vdocuments.mx/reader036/viewer/2022071401/60ebeb446c909d7a87295b0f/html5/thumbnails/48.jpg)
II.3 REDG forFiber Lasersand amplifiers
Fiber Amplifiers
![Page 49: Spectroscopy of Rare Earth Doped Glasses. (2)indico.ictp.it/event/a06183/session/32/contribution/22/... · 2014. 5. 5. · Spectroscopy of Rare Earth Doped Glasses Lessons Plan Part](https://reader036.vdocuments.mx/reader036/viewer/2022071401/60ebeb446c909d7a87295b0f/html5/thumbnails/49.jpg)
II.3 REDG forFiber Lasersand amplifiers
Fiber Amplifiers
![Page 50: Spectroscopy of Rare Earth Doped Glasses. (2)indico.ictp.it/event/a06183/session/32/contribution/22/... · 2014. 5. 5. · Spectroscopy of Rare Earth Doped Glasses Lessons Plan Part](https://reader036.vdocuments.mx/reader036/viewer/2022071401/60ebeb446c909d7a87295b0f/html5/thumbnails/50.jpg)
II.3 REDG forFiber Lasersand amplifiers
Fiber Amplifiers
![Page 51: Spectroscopy of Rare Earth Doped Glasses. (2)indico.ictp.it/event/a06183/session/32/contribution/22/... · 2014. 5. 5. · Spectroscopy of Rare Earth Doped Glasses Lessons Plan Part](https://reader036.vdocuments.mx/reader036/viewer/2022071401/60ebeb446c909d7a87295b0f/html5/thumbnails/51.jpg)
REDG Planar and Channel Waveguides
II.4 REDG planar andchannelwaveguides
![Page 52: Spectroscopy of Rare Earth Doped Glasses. (2)indico.ictp.it/event/a06183/session/32/contribution/22/... · 2014. 5. 5. · Spectroscopy of Rare Earth Doped Glasses Lessons Plan Part](https://reader036.vdocuments.mx/reader036/viewer/2022071401/60ebeb446c909d7a87295b0f/html5/thumbnails/52.jpg)
Ion exchange, 8mm long, 2-10µm width, ∆n = 8.7x10-3
Silicate glass, 16%Na2O, 2%Nd2O3, K+ ↔ Na+
II.4 REDG planar andchannelwaveguides
![Page 53: Spectroscopy of Rare Earth Doped Glasses. (2)indico.ictp.it/event/a06183/session/32/contribution/22/... · 2014. 5. 5. · Spectroscopy of Rare Earth Doped Glasses Lessons Plan Part](https://reader036.vdocuments.mx/reader036/viewer/2022071401/60ebeb446c909d7a87295b0f/html5/thumbnails/53.jpg)
II.4 REDG planar andchannelwaveguides
![Page 54: Spectroscopy of Rare Earth Doped Glasses. (2)indico.ictp.it/event/a06183/session/32/contribution/22/... · 2014. 5. 5. · Spectroscopy of Rare Earth Doped Glasses Lessons Plan Part](https://reader036.vdocuments.mx/reader036/viewer/2022071401/60ebeb446c909d7a87295b0f/html5/thumbnails/54.jpg)
II.4 REDG planar andchannelwaveguides
![Page 55: Spectroscopy of Rare Earth Doped Glasses. (2)indico.ictp.it/event/a06183/session/32/contribution/22/... · 2014. 5. 5. · Spectroscopy of Rare Earth Doped Glasses Lessons Plan Part](https://reader036.vdocuments.mx/reader036/viewer/2022071401/60ebeb446c909d7a87295b0f/html5/thumbnails/55.jpg)
II.4 REDG planar andchannelwaveguides
![Page 56: Spectroscopy of Rare Earth Doped Glasses. (2)indico.ictp.it/event/a06183/session/32/contribution/22/... · 2014. 5. 5. · Spectroscopy of Rare Earth Doped Glasses Lessons Plan Part](https://reader036.vdocuments.mx/reader036/viewer/2022071401/60ebeb446c909d7a87295b0f/html5/thumbnails/56.jpg)
• Employs µm size glass barcodes• UV excited fluorescences• APPLICATION: Bioessays
Advantages of REDG
- High quantum efficiencies- Noninterference with common
fluorescence labels- Inertness to most organics and
aqueous solvents
> 106 distinguishable possibilities
II.5 REDG microbarcodes
![Page 57: Spectroscopy of Rare Earth Doped Glasses. (2)indico.ictp.it/event/a06183/session/32/contribution/22/... · 2014. 5. 5. · Spectroscopy of Rare Earth Doped Glasses Lessons Plan Part](https://reader036.vdocuments.mx/reader036/viewer/2022071401/60ebeb446c909d7a87295b0f/html5/thumbnails/57.jpg)
II.5 REDG microbarcodes
![Page 58: Spectroscopy of Rare Earth Doped Glasses. (2)indico.ictp.it/event/a06183/session/32/contribution/22/... · 2014. 5. 5. · Spectroscopy of Rare Earth Doped Glasses Lessons Plan Part](https://reader036.vdocuments.mx/reader036/viewer/2022071401/60ebeb446c909d7a87295b0f/html5/thumbnails/58.jpg)
II.5 REDG microbarcodes
![Page 59: Spectroscopy of Rare Earth Doped Glasses. (2)indico.ictp.it/event/a06183/session/32/contribution/22/... · 2014. 5. 5. · Spectroscopy of Rare Earth Doped Glasses Lessons Plan Part](https://reader036.vdocuments.mx/reader036/viewer/2022071401/60ebeb446c909d7a87295b0f/html5/thumbnails/59.jpg)
Break time!!!!!!