optical components our core competence

Optical components – our core competence

February 5, 2020 1

We are equipped with the full technology for production of optical components, starting from raw materials in block or rod shape on basis of nearly all existing optical glasses, fused silica, ceramics and crystals.

plane optics spherical optics coatings assemblies design & calculations

Products

• Single Lenses (CX, CC, Meniscus)

• Achromates and tripletts (cemented and air spaced)

• Cylindrical lenses

• Mild aspheres

February 5, 2020 3

Basic Technical Possibilities

• Range of diameter 3 – 300 mm

• Convex focus : up to 3000 mm Concave focus : up to -500 mm

• Holes

• Lens edging, odd shapes and special cuts

Examples of Applications

• Stripe Lenses for scanner technologies in Lithography

• Lenses for objectives, beam expander a.o.

• Small lenses for endoscopy

Performance

• Surface accuracy λ/10, with MRF up to λ/20

• Surface finish : 10-5

• Roughness : < 0.3 nm (rms)

Lenses

Products

• Windows, Brewster windows

• Wedges

• Plane parallel plates

• Filters

• Etalons

February 5, 2020 4


• Diameter or edge length : 3 – 300 mm

• Special cuts

• Holes


• Camera windows

• Scanner mirror substrates

• Beam splitter plates

• Compensation plates

Performance




• Parallelism : up to < 1‘‘

Flat Optics

Products

• Reflection and dispersion prisms

• 90°-prisms, 60°-prisms

• Special prisms : Bauernfeind, Roof, Amici, Pellin-Broca

• Pentaprisms, Tripelprisms

February 5, 2020 5


• Edge length : 4 – 100 mm

• Prisms with inner angles

• Special cuts


• Cavity prisms

• Prisms for endoscopy

• Periscopes

Performance




• Angle accuracy : up to < 5‘‘

Prisms

Products

• Plane and spherical mirrors

• Metallic coated (Al, Ag, Au)

• Dielectric coated

February 5, 2020 6


• Diameter or edge length : 3- 500 mm

• Cutted corners or special phases

• Holes


• Scanner mirrors

• Stripe mirrors for lithography

• Laser applications

• Al mirrors for UV-application

• Gold mirrors in IR spectroscopy

Performance

• Surface accuracy λ/10 with MRF up to λ/20



Mirrors

Products

• Dielectric polarizers (plate or cube)

• Crystalline polarizers (e.g. Rochon, Wollaston) made from quartz, calcite and MgF2

• Retardation plates (multiple and zero order)

February 5, 2020 7


• Diameter or edge length :

3 – 20 mm



Performance

• Surface accuracy λ/10

• Angle accuracy : up to < 5‘‘



• Retardation tolerance : up to λ/200

Polarizers and Retardation Plates

Products

• Objectives

• Microscope optics

• Laser beam expander

• Telescopes

• Zoom modules

February 5, 2020 8


• Diameter pf lenses :

4 – 100 mm



• Lithography

• LIDAR

Performance




Optical Assemblies

Products

• KD*P Pockels cells

• LiNbO3 Pockels cells

• Q-switch driver

February 5, 2020 9


• Spectral range for KD*P : 350 – 1500 nm

• Spectral range for LiNbO3 : 400 – 4500 nm

• Contrast ratio up to 1000:1 (KDDP) and up to 200: (LiNbO3)

Examples for Applications

• Laser beam modulation

• Q-switch (cavity dumper)

• Phasenmodulation

• Shutter function

• Pulse picker

Performance




Laser Modulators

Metallic • Aluminium, Silver and Gold • with protection (e.g. MgF2, SiO2,

Y2O3)

Dielectric • AR (e.g. V-type, BB and 2-Point) • HR (e.g. 532 + 1064 and > 70 % for

red pilot laser) • Edge filter • Beam splitter (intensity, polarization)

Graded coatings (filters, mirrors)

February 5, 2020 10

Thin film coatings features:

• low absorption antireflection coatings for use in high-power lasers

• low absorption HR coatings

• femtosecond optical coatings

• very dense and stable coatings

Thin Film Coating

Laser mirror AOI=45 deg

Cube polarizer

QED Q-flex 300

• Surface flatness PVr: up to λ/80 @633 nm

• Radius: approx. 1 - 3 µm

• Surface irregularity PVr: up to λ/40 @633 nm

• Roughness: 0.3 - 0.4 nm (Sq)

• Diameter up to 300 mm

• Mild aspheres

February 5, 2020 11

MRF (MagnetoRheological Finishing)

PVr = 16nm RMS=2.2 nm Zerodur Φ100 mm RoC = 1.6 m

PVr = 8 nm RMS = 1.2 nm Zerodur Φ60 mm plano

Precision opto-mechanical assemblies with full „as built“ characterization capability

February 5, 2020 12

Precise moun-ting of optical systems

Technology Tilt Shift

Drop-in-assemby 5´ 50 μm

Opti Centric Alignment 1´ 20 μm

• starting from requirements

• in house standard designs/ external consultant

• complex designs

• design-to-manufacture

• optical design imaging/illumination

• optical tolerancing, Monte Carlo

• stray light

• opto-mechanical design

• documentation acc. to ISO 10110

February 5, 2020 13

Optics design & analysis abilities

February 5, 2020 14

Measuremet capabilities

Parameter Measurement device Accuracy

Dimension Measurement microscope, Micrometer, 3D CMM

1 µm MPEE<(1.5+L/250) µm

Angle Goniometer 1 arcsec

Parallelism Interferometer, Autocollimator

0.1 arcsec 0.2 arcsec

Surface irregularity Zygo Verifire Interferometer λ/50 PV for flat λ/50 PV for spherical

Centricity Opticentric 3D 0.1 µm

Radius / Focus Interferometer + ROC slide 3 µm

Surface Finish Microscopes, reference pattern 10-5

Roughness WLI Profilometr 0.05 nm

Retardation phase shift measurement device – IAO1

λ/200 @500 nm

Spectral characteristic Spektrofotometer LAMBDA 950 Perkin – Elmer

1 nm

15

And what we can do for your light beams ?

Multiple beam recombiner for Laser Fusion Experiment

optical components our core competence

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