Polarcor Ultrathin Glass Polarizers
- Product Item : AT-61158
- Category： Glass-Ceramic Optical Substrates
- Product description：Polarco Ultrathin is a 30-micron thick glass polarizer that provides greater versatility for managing polarization in components throughout a telecommunications network and for developing high perform
Polarcor Ultrathin Glass Polarizers
Polarco Ultrathin is a 30-micron thick glass polarizer that provides greater versatility for managing polarization in components throughout a telecommunications network and for developing high performance, cost effective components. The durability of Polarcor UltraThin is similar to that of the standard Polarcor product. UltraThin is unique due to the thinness of the material, allowing low loss fiber-to-fiber and fiber- to-device coupling without expensive micro lenses.
Product Description
Polarcor is made from a highly durable borosilicate glass containing elongated silver crystals aligned along a common axis. It has served the telecommunications market since 1984 and is the polarization material of choice for polarization dependant isolators used in DFB lasers for telecommunications networks. In the
standard 200 and 500-micron thick product, polarization occurs within 25 to 50 microns of each surface; in the UltraThin product, polarization occurs throughout the entire body of the glass. UltraThin serves as a linear polarizer to reduce signal-to-noise ratio.
Performance
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Key Performance Parameters of Ultrathin Glass Polarizers
|
|
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Thickness |
30 microns +/- 10 microns |
|
Wavelength and Bandwidth |
1310 nm (1275-1345 nm) 1550 nm (1510-1590 nm) |
|
Standard Size |
1 mm x 2 mm |
|
Extinction |
> 23 dB |
|
Refractive Index (n) |
n @ 1310nm = 1.511, n @ 1550nm = 1.510 |
|
Transmission |
> 98%, excluding surface reflective losses |
|
Performance • Low insertion loss • High extinction |
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• Large clear aperture |
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(80% of edge dimension) |
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• High transmission |
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• Monolithic glass polarizer
Key Benefits Low loss fiber-to-fiber coupling High performance Ease of alignment Ease of integration Device miniaturization Durability
Applications • Modulators • Fiber polarizers • Polarization clean-up |
Typical key specifications for Polarco ultraThin glass polarizers
|
λNominal (nm) |
1060 |
1310 |
1550 |
|
Polarization Bandwidth (nm) |
960 - 1160 |
1275 - 1345 |
1510 - 1590 |
|
Contrast Extinction Ratio (dB) |
> 200:1 > 23 |
> 200:1 > 23 |
> 200:1 > 23 |
|
Transmittance (%) Insertion Loss (dB) without AR-Coating |
> 88.5 < 0.53 |
> 88.5 < 0.53 |
> 88.5 < 0.53 |
|
Thickness (μm) |
30 ±10 |
30 ±10 |
30 ±10 |
