The LINOS Faraday Isolators - Qioptiq Q-Shop

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4 mm Aperture Isolators with Magnetooptical CrystalFilmFI-x-4SL• Extremely small size• Isolation better than 35 dB• Faraday material: magneto-opticalcrystal film in saturation• Ferrite permanent magnet• Output polarizer, 360° rotation• Access to blocked beam• Damage thresholds > 2 kW / cm 2 cw(488 / 514 nm)• Damage thresholds > 200 mJ / cm 2 forpulses of 10 ns (1064 nm)• Damage thresholds > 28 mJ / cm 2 forpulses of 280 fs (850 nm, 20 Hz)FI-x-4SL (x = 1310, 1550 nm)FI-x-4SLItem TitleIsolation,guaranteed/typical(dB)Transmissionat designwavelength(%)Transmisionat boundarywavelength(%)Tuningrangetypical(nm)Aperture(mm)DimensionsIsolator(mm)Order-NoFI-1310-4SL > 35 > 90 > 85 1260 - 1360 Ø 4 14x23.5 84 50 1071 000FI-1550-4SL > 35 > 90 > 85 1485 - 1615 Ø 4 14x23.5 84 50 1072 000638US-Phone +1 585 223-2370 UK-Phone +44 2380 744 500
Faraday IsolatorsIsolators with a Broad Tuning RangeIsolatorsTechnical OverviewIntroductionThe function of the tunable isolators inthe following chapter is based on asingle stage Faraday isolator. Precisionmechanics allow a continuous adjustmentof the interaction between themagnetic field and the TGG crystalwithout moving any optical components.It is possible to set the rotation angle toany value between 0° to 45° within thewavelength range in order to study theeffects of varying degrees of feedback.Easy access to the blocked beam isprovided by polarizing beam splittercubes, which divert the blocked beam by90°.Precision mechanics allow the exactreproduction of adjustments previouslyestablished. And with the addition of anoptional micrometer display, an angularresolution in the arc minute range isachievable. The incorporation of verypowerful magnets ensures a compactand efficient design.OperationThe isolator can be mounted on rods,cylindrical mounts or by using theassembly surfaces so that the laserpolarization can be oriented horizontallyor vertically. The entry and exit polarizerscan be easily cleaned by removing thesecurity rings.ApplicationsThese isolators are suitable for all lasersoperating in the 390-420 nm respectivelyin the 500-1100 nm wavelength rangeespecially for:••Ar+ and Kr+ lasers••other Ion lasers••HeNe lasers••Other gas lasers••Diode lasers••Nd:YAG lasers••Ti: Sapphire lasers••Cr:LiCAF lasers••Dye lasers••Alexandrite lasers••Mode-locked lasers••Short Pulse lasersFaraday RotatorFor every laser line selected from 390 nmto a maximum of 1100 nm, everypolarization direction from 0° to 90° isprecise and reproducible.Germany-Phone: +49 (0) 551/ 6935-0 France-Phone: +33 - 47 25 20 420639
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