Polarization optics

Product Description

FOCtek manufactures a wide range of polarizers (Glan Laser, Glan Taylor, Glan Thompson, Wollaston and Rochon) by employing birefringent crystals: a -BBO, Calcite, YVO4 and quartz. The material properties of birefringent crystals are great influence on your selection of right type polarizers. Specifications Material: a-BBO, calcite or YVO4 Wavelength range: a-BBO: ****3, **0nm, Calcite: ****2, **0nm, YVO4: ****4, **0nm, Quartz: ****2, **0nm, MgF2: ****4, **0nm Extinction ratio: Calcite: <5 x ***5 , a-BBO: <5 x ***6, YVO4: <5 x ***5, Quartz: <5 x ***5, MgF2: <5 x ***5 Surface quality: ****0 Beam deviation: <3arc min for Glan laser, Glan Taylor and Glan Thompson, <1arc min for Rochon Wavefornt distortion: Lambda/4 at **3nm Damage threshold: >**0mW/cm2 Coating: single MgF2 Mount: black anodized aluminum Features Glan Taylor Polarizers 1) Air-spaced 2) Close to Brewster's angle cutting 3) Low L/A=0.8 4) Mounted without escape windows 5) For low to medium power Glan Laser Polarizers 1) Air spaced 2) Close to Brewster's angle cutting 3) Mounted with escape windows 4) Suitable for high power 5) L/A=1.5 High transmission Glan Laser Polarizers 1) Air spaced 2) With Brewster's angle cutting 3) Mounted with escape windows 4) Suitable for high power and high transmission 5) Brewster angle Glan Thompson Polarizers 1) Cemented 2) Suitable for low power 3) Wide acceptance angle 4) a-BBO based 5) Glan Thompson range: ******0nm Wollaston Polarizers 1) Cemented 2) Separate ordinary and extraordinary beams at certain angle 3) Suitable for low power and where large deviation is required Rochon Polarizers 1) a-BBO is used to guarantee a wide transmission range 2) Especially, suitable for UV 3) Split the ordinary and extraordinary ray 4) Only ordinary beam is deviated Foctek offers custom-made polarizers. Foctek offers competitive price and high quality polarizers. Please visit our web to read more information! Please email us your spe