Faraday Isolators and Rotators
Faraday Isolators and Rotators
The FI protects laser by attenuating the reflected and backscattered light by several orders of magnitude (104 to 106). It is also used when some devices have extreme sensitivity to optical feedback which can cause intensity instabilities, frequency pulling and other undesirable effects.
Altechna offers a variety of optical isolator models:
Highly transparent (HT) single stage isolators. Isolation 38-44 dB, wavelength 500-1250 nm (fixed), clear aperture 3-15 mm. Transmission >90%.
Broadband isolators. Isolation >38 dB. Center wavelength - 800 nm (other designs are also available on request). Bandwidth - 130 nm. Clear aperture is 3-12 mm. HT and SE modifications are also available.
Tunable isolators. Peak isolation 38-42 dB. Central wavelength - 780 nm. Tuning range from 700 to 860 nm. Other wavelengths available upon request. Simple and convenient operation.
Single stage isolators with side exit (SE). Isolation 38-44 dB, wavelength from 500 to 1250 nm (fixed), bandwidth - 30 nm. Clear aperture 3-16 mm. Transmission ~85%.
Double stage isolators. Isolation >60 dB. Wavelength is 800 - 1150 nm (fixed). Bandwidth - 30 nm. Clear aperture 3-12 mm.
Isolators for IR optical range. Isolation - 30 dB. Wavelength 1.25 - 3.39 µm (please request, as there are certain restrictions in this range).
Please specify the desired clear aperture, isolator type (above) and wavelength with your enquiry. Please also specify the rod type (TGG or Glass).
TGG rods have higher breakdown threshold than Glass rods.
|Peak isolation 38 dB|
|Transmission (1064nm, 800nm) >90%|
|Application: feedback elimination, amplifier design|
Isolators technical specifications
|Wavelength, nm||Clear aperture, mm||Rod material||Dimensions, mm, (LxWxH) beam height||Peak isolation, dB||Transmission, %|
|* - at peak (tunable).|
|** - at 800 nm. Please see transmission and isolation curves for more info.|
Polymer film First Contact™ is a unique product designed for laser optics protection, preservation and cleaning. For all sorts of optical items it serves as a protection layer from damages during shipping, long term storage, environment changes, etc. and removes all dust and other contamination after the film is removed from the optical surface. It is absolutely safe for almost all types of optics and optical coatings.*
- Protects against scratching, abrasion, dirt, and water damage. Also protects against corrosion caused by water vapor, oxygen, and sulfur.
- Cleans the surface, removes particulates and organic contaminants.
- Leaves no residue.
- Leaves no hazardous waste.
- Safe to store for up to 4 years (period may be extended depending on storing conditions).
- Comes off in one piece.
- Does not lift metal from metal films.
- Safe with temperatures up to 200° C.
- Environmentally friendly
* Protective polymer cannot be used with optical components sensitive to acetate.
Price – 3 EUR per item (price includes coating service and polymer)
If you want to order protective coating please select "Optics Protection" in the catalog list.
Holding the sticker slowly peel the film starting from the edge. If necessary place the optic in its corresponding mount prior to removing the film.
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You can customise this product to your needs. If you do not find suitable specifications for your application please contact us for custom solution.Fill form
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