A Faraday isolator (FI) is a nonreciprocal optical device which transmits the linearly polarized light in one direction and deflects the backward beam. It usually consists of a Faraday rotator and two polarizers. The Faraday rotator is made of magneto-optical active material which is placed into the permanent magnet system (Nd-Fe-B). Two types of the magneto-optical active materials are available: Terbium-doped glass, Terbium-Gallium-Garnet (TGG) crystals.

    The isolator protects a laser source by attenuating the reflected and backscattered light by several orders of magnitude (10^6 to 10^6). It is also used when some devices have extreme sensitivity to optical feedback which can cause intensity instabilities, frequency pulling and other undesirable effects.

   We offer a variety of optical isolator models:
 

Peak isolation 38 dB, 60 dB *
Transmission (1064nm, 800nm) >90% *
Broadband isolators *
Tunable isolators *

Application
- Feedback elimination
- Amplifier design

Highly transparent (HT) single-stage isolators. Isolation 38-44 dB, wavelength 400-1250 nm (fixed), clear aperture 2-15 mm. Transmission >90%.
Broadband isolators. Isolation >38 dB. Center wavelength - 800 nm (other designs are also available on request). Bandwidth - 120 nm (>30 dB). Clear aperture is 2-12 mm. HT and SE modifications are also available.
Tunable isolators. Peak isolation 38-42 dB. Default central wavelength - 780 nm. Tuning range from 710 to 880 nm. Other wavelengths available upon request.
Single stage isolators with side exit (SE). Isolation 38-44 dB, wavelength from 400 to 1250 nm (fixed), bandwidth - 30 nm. Clear aperture 2-12 mm.
Double stage isolators. Isolation >60 dB. Wavelength is 600 - 1150 nm (fixed). Bandwidth - 30 nm. Clear aperture 2-12 mm.

Eachwave Scientific Instrument Co., LTD
Add: 3F-302,Focus Innovation Park,Yuanjiang Road No.3599,Minhang District,Shanghai  P.R.C (201108)
Tel: 021-62209657
Fax: 021-54843093
Email: sales@eachwave.com
Web: www.eachwave.com