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| Faraday Optical Isolator, Free-Space |
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- Broad free space optical isolator offering
- High Verdet constant
- Low absorption coefficients
- High damage thresholds
- Tunability over a broad spectral range
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Product DescriptionProduct DetailSpecificationsDrawingsDownloadsCatalog PDF
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A Faraday Optical Isolator is essentially a uni-directional light valve. It is used to protect a laser source from destabilizing feedback or actual damage from back-reflected light. Newport offers free space optical isolators packaged in a compact cylindrically shaped magneto-optic device with a base plate for ease of mounting into an optical train. Our offering includes wavelength ranges of 500 nm to 1030 nm, 1030 nm to 1080 nm and Broadband (Ti:Sapphire) optical isolators. The 500 nm to 1030 nm optical isolators are offered in a low-power (LP) and medium-power (MP) versions. The -W version indicates an added 1/2 wave plate at the output stage, so that the direction of polarization of the output beam can be rotated to a desired direction.
The LP Series utilizes field proven, high efficiency Corning Polarcor™ polarizers; ideal for laser diode applications. The MP Series uses a higher damage threshold BK-7 polarizing beamsplitter (PBS) and provide double escape ports for applications where rejected power exceeds 0.5 W. The 1030 nm to 1080 nm versions offer high pulse damage thresholds in the NIR range.
The broadband Faraday isolators are ideal for individual amplifier isolation in a Ti:Sapphire chain while maintaining the ability to tune rapidly over the amplifier bandwidth or isolating a femtosecond oscillator from a Ti:Sapphire regenerative amplifier. These provide the advantage of operating over a wide spectral range without requiring manual adjustments. The -G version and -P version differ by the polarizer material: glan laser calcite and PBS, respectively. |
Broadband optical isolator
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