Faraday isolator

An optical isolator is a passive magneto-optic device based on the Faraday effect. It is an optical component that allows the transmission of light in only one direction and prevents unwanted feedback into an optical oscillator. The isolators are based on our own TGG or TSAG Faraday crystals of low loss and high optical power threshold

High isolation / low insertion loss

High power models with exit ports for return signal monitoring or beam injection

Customized size and wavelength

Applications: Seed light amplifying laser, Lock film laser, A semiconductor laser, Optical measuring equipment, Optical parametric oscillator

Faraday rotator provides non-reciprocal rotation while maintaining linear polarization, The plane of polarization will be rotated 45° when light transmits through the Faraday rotator in the forward direction and rotated additional 45° in the same relative direction with respect to magnetic field when light travels backwards from the reverse direction. It will generate total rotation of 90° and reject the light coming from the reverse direction

Isolators are available for optional λ/2 plate

High damage threshold and power handling

Peak isolation: Range from 30dB to 45dB

Applications: Laser sensing system, Ultrafast laser system, OCT system, Laser detection

Our free-space optical isolator (Faraday isolator) and Faraday rotator selection includes a wide range of wavelengths, from 400nm-1064nm, with typical isolation as high as 40dB (single stage), and 75dB (dual stage). We can offer a broadband optical isolator as required also single point wavelength. Most of our optical isolators are available with a choice of low, medium or high power capability

High isolation / low insertion loss

High power models with exit ports for return signal monitoring or beam injection

Customized size and wavelength

Applications: Maintain the light’s linear polarization, Avoid deleterious effects of back reflection in laser diodes, Eliminate instability in amplified laser systems caused by ASE, Reduce Nd and Yb oscillations from ASE created by amplifiers

Our Free Space Isolators could maintain the light’s linear polarization, through rotating the plane of polarized light 45° in the forward direction and an additional 45° of non-reciprocal rotation in the reverse direction

Orthogonal isolated beams

Isolators are available for optional λ/2 plate

All isolators contain escape ports

High damage threshold and power handling

Peak isolation: Range from 30dB to 45dB

Polarization Free space isolators are used in the high-speed optical transmitter or other pump laser which need to isolate the backward light. The isolators offer excellent performance with high isolation and low insertion loss. Available in single stage or semi-double stage options are centered at 1310nm, 1490 or 1550nm. The free space isolators can offer a range of clear aperture diameters from 0.40mm to 1.5mm as standard

Customized size and wavelength

High isolation / Low insertion loss

Low, medium and high power options

Applications: Maintain the light’s linear polarization, Reduce Nd and Yb oscillations from ASE created by amplifiers, Avoid deleterious effects of back reflection in laser diodes, Eliminate instability in amplified laser systems caused by ASE