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格兰-泰勒偏振器
特性：
格兰-泰勒偏振器能产生消光比超过100000：1的极纯净线偏振光，适用于在350纳米*-2.3微米波长范围内的激光束。也会有大量的反射光从偏振器的侧窗出射，包括o光和e光。因此，这种出射光并非纯正的偏振光，对于需要高质量和偏振光束的应用，只有透射e光可以使用。
偏振器的输入和输出面都是抛光成激光质量的20-10划痕-麻点表面光洁度，以将激光束或光场的透射e偏振成分的散射降到少。o偏振成分通过68o角(波长相关)反射，再通过两个侧面端口之一从偏振器出射，使偏振器可以双向使用。逃逸光并不是纯正的偏振光，且侧面端口的划痕-麻点为80-50。
警告：方解石是一种温度敏感型晶体，如果暴露在热冲击下会破裂。因此在收到货物达到热平衡后（6 - 8 小时）再打开包装。
Glan-Taylor Calcite Air Spaced Polarizer
A range of sizes comparable to our conventional Glan-Taylor polarizers is avaialble but as the prism sizes are larger, there is a modest premium on the price for a given aperture. Please contact us for further information.?
Glan-Taylor Calcite Air Spaced Polarizer
The Glan-Taylor design produces a high extinction ratio polarizer with low reflection losses and a high power handling capability. It is therefore particularly useful for polarizing laser light, with the further advantages that there is no transmission deviation or offset, and that a wide spectral range can be polarized.
Product Specification
POLARIZER | GT10 | GT12 | GT15 | GT18 | GT20 |
APERTURE (mm) | 10 | 12 | 15 | 18 | 20 |
WIDTH (mm) | 11 | 13 | 17 | 20 | 22 |
HEIGHT (mm) | 10 | 12 | 15 | 18 | 20 |
LENGTH (± 1.0mm) | 11 | 15 | 18 | 21 | 24 |
TRANSMISSION RANGE | ------------------- 0.25 - 2.5μm ------------------- | ||||
EXTINCTION RATIO | 10-5 | 10-5 | 10-5 | 10-6 | 10-6 |
TRANSMISSION UNCOATED | ----------------------- 88% ----------------------- | ||||
MAXIMUM BEAM DEVIATION | 3 min | 3 min | 3 min | 2 min | 2 min |
MAXIMUM OPTICAL POWER | ------------------- 200MW/cm2 -------------------- | ||||
MAXIMUM OPTICAL POWER CW | -------------------- 300W/cm2 --------------------- | ||||
Glan Taylor Polarizer With Orthogonal Output Side Exit Escape Windows
The Glan Taylor polarizer produces a high extinction ratio with low reflection losses and a high power handling capability.
Specification
Polarizer | GLBS 10 | GLBS 12 | GLBS 16 |
Aperture | 10 mm | 112 mm | 15 mm |
Spectral Range | --------------- 350 - 2500nm --------------- | ||
Extinction Ratio | ------------------- ??10-5 ------------------- | ||
Maximum Beam Deviation | ------------------- 3 min ------------------- | ||
Transmission | --- 88% (uncoated) 93-95% (ar-coated) --- | ||
Surface Flatness | ---------------- ?/6 @ NaD ---------------- | ||
Maximum Optical Power | -- 150W/cm2 (av) - 300MW/cm2 (pulsed) -- | ||
This special version of the Glan-Taylor polarizer is cut such that the P-polarization (extra-ordinary ray) intersects all four optical faces at Brewster's angle, thus ensuring a minimal insertion loss over a wide operating wavelength range. Transmission in fact is approaching 99% for the P-polarization and extinction ratio is exceptional, exceeding that of the more conventional cut Glan-Taylor.
This special version of the Glan-Taylor polarizer is cut such that the rejected S-polarized light exits in a direction parallel to the side exit face normal. More importantly, if the beam direction is reversed such that light is entering at the side face, it suffers no refraction at the surface and hence there is no dispersion of the position of the beam in the polarizer. This makes it possible to use this design for combining beams of orthogonal polarization and across a range of wavelengths without losing colinearity of the combined beams.
