上海尖豐光電技術(shù)有限公司
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上海尖豐光電技術(shù)有限公司
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格蘭-泰勒偏振器
特性：
格蘭-泰勒偏振器能產(chǎn)生消光比超過100000：1的極純凈線偏振光，適用于在350納米*-2.3微米波長范圍內(nèi)的激光束。也會(huì)有大量的反射光從偏振器的側(cè)窗出射，包括o光和e光。因此，這種出射光并非純正的偏振光，對(duì)于需要高質(zhì)量和偏振光束的應(yīng)用，只有透射e光可以使用。
偏振器的輸入和輸出面都是拋光成激光質(zhì)量的20-10劃痕-麻點(diǎn)表面光潔度，以將激光束或光場的透射e偏振成分的散射降到少。o偏振成分通過68o角(波長相關(guān))反射，再通過兩個(gè)側(cè)面端口之一從偏振器出射，使偏振器可以雙向使用。逃逸光并不是純正的偏振光，且側(cè)面端口的劃痕-麻點(diǎn)為80-50。
警告：方解石是一種溫度敏感型晶體，如果暴露在熱沖擊下會(huì)破裂。因此在收到貨物達(dá)到熱平衡后（6 - 8 小時(shí)）再打開包裝。
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.
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