eaf lower limit proposal - ieeegrouper.ieee.org/groups/802/3/bv/public/may_2015/... ·...
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A proposal of launch condi0on at TP2
Satoshi Takahashi
POF promo0on
2015. 5. 19 PMD Ad-‐hoc IEEE 802.3 PiFsburgh Interim
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Source: Presenta0on by Mr. Kobayashi in Berlin, March 2015
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Encircled Angular Flux of Equilibrium Mode Distribu0on of Commercially Available A4a.2 POFs
0.0
0.2
0.4
0.6
0.8
1.0
0 5 10 15 20 25 30 35
EAF
Angle (deg.)
POF EMDデータ数:24 (4品種)4 products from 3 manufactures, Total 24 samples
Adopt Equilibrium Mode Distribu0on (EMD) of A4a.2 POF as the launch condi0on
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Encircled Angular Flux
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AFenua0on measured under EMD launch condi0on
Inser0on loss technique
(A4a.2 spec.: 18 dB/100m under EMD)
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Bandwidth measured under EMD launch condi0on
Extrapolated bandwidth @ 100m: 44.4 MHz
(A4a.2 spec.: 40 MHz
under RML)
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Basis of calcula0on by KDPOF (?)
Source: Tutorial at IEEE 802.3 San Antonio plenary mee0ng
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• Length dependence is similar to that of EMD launch by KDPOF • Values are higher than those of EMD launch by KDPOF → we will have some margin
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Encircled Angular Flux of FOTs measured at TP2
AVAGO FOT in Yazaki Connector
= Measured highest EMD = Measured lowest EMD
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EAF template proposal Angle (deg.) EAF
5 0.041
10 0.161
15 0.356
20 0.610
25 0.858
30 0.966
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EAF of FOTs