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Fiber Isolators & Circulators

The Fiber Optic Circulators from OZ Optics are essential signal routers that efficiently transmit light from an input fiber to an output fiber while directing any returning light along the output fiber to a third port. These circulators offer low insertion loss, miniature packages, high power handling, a wide wavelength range, low ...

Specifications

Type Of The Device: Circulator
Operating Wavelength: 780, 850, 1060, 1310, 1480, 1550 nm
Max Power: 0.25 W
Min Isolation: -- dB
Extinction Ratio: 20, 25, 30 dB
...
Data Sheet
The Fiber Optic Isolators offered by OZ Optics are designed to handle high optical power and provide excellent isolation levels with low insertion loss. These isolators are available in polarization sensitive and insensitive versions, covering a wavelength range of 532nm to 2000nm. They are compact in size and built with stable and ...

Specifications

Type Of The Device: Isolator
Operating Wavelength: 2000 nm
Max Power: 10 W
Min Isolation: 60 dB
Insertion Loss: <1.4 dB
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Data Sheet
The TGG Based Optical Isolator is characterized with low insertion loss, high isolation, high return loss, excellent environmental stability and reliability. It has been widely used in lasers, transmitters and other fiber optics communication equipment to suppress back reflection and back scattering. DK Photonics offers a large ...

Specifications

Type Of The Device: Isolator
Operating Wavelength: 850 nm
Max Power: 10 W
Min Isolation: 25 dB
Data Sheet
CSRayzer offers different clear apertures and wavelength range free space rotator and isolator, also called Faraday rotator and isolator, which is a device that changes the polarization state of light based on the Faraday magneto-optical effect.  It is available with different clear aperture sizes, including diameters of 3, ...

Specifications

Type Of The Device: Circulator
Operating Wavelength: 1053 nm
Max Power: 100 W
Min Isolation: - - dB
Magneto-optics Material: TGG 
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Data Sheet
LFIBER's polarization maintaining optical circulator with high extinction ratio is a passive component based on the Faraday effect, transmitting light signals from one port to the next sequential port with low loss, but at the same time blocking any light transmission to the previous port.  By using polarization maintaining ...

Specifications

Type Of The Device: Circulator
Operating Wavelength: 30 nm
Max Power: 300 W
Min Isolation: 40 dB
Port Type: 3 Port, 4 Port 
...
Data Sheet
CSRayzer offers different clear apertures and wavelength range free space rotator and isolator, also called Faraday rotator and isolator, which is a device that changes the polarization state of light based on the Faraday magneto-optical effect. It is available with different clear aperture sizes, including diameters of 3, 5, 6, 7, 8 ...

Specifications

Type Of The Device: Isolator
Operating Wavelength: 1053 nm
Max Power: 50 W
Min Isolation: 32 dB
Clear Aperture: 8 or Specify mm
...
Data Sheet
CSRayzer offers different clear apertures and wavelength range free space rotator and isolator, also called Faraday rotator and isolator, which is a device that changes the polarization state of light based on the Faraday magneto-optical effect. It is available with different clear aperture sizes, including diameters of 3, 5, 6, 7, 8 ...

Specifications

Type Of The Device: Isolator
Operating Wavelength: 1064 nm
Max Power: 100 W
Min Isolation: 35 dB
Transmission@λc: ≥93 %
...
Data Sheet
CSRayzer offers different clear apertures and wavelength range free space rotator and isolator, also called Faraday rotator and isolator, which is a device that changes the polarization state of light based on the Faraday magneto-optical effect. It is available with different clear aperture sizes, including diameters of 3, 5, 6, 7, 8 ...

Specifications

Type Of The Device: Circulator
Operating Wavelength: 1064 nm
Max Power: 100 W
Min Isolation: - - dB
Transmission @λc: ≥98 %
...
Data Sheet
This is a polarization maintaining isolator with a dual stage configuration and operating at 1550nm wavelength. This fiber optic isolator has input and output polarization maintaining fibers. It is often used to block light traveling in the backward direction, preventing instability and damage to a laser system caused by ...

Specifications

Type Of The Device: Isolator
Operating Wavelength: 1550 nm
Max Power: 0.5 W
Min Isolation: 46 dB
Type: Dual Stage 
...
Data Sheet
CSRayzer offers different clear apertures and wavelength range free space rotator and isolator, also called Faraday rotator and isolator, which is a device that changes the polarization state of light based on the Faraday magneto-optical effect. It is available with different clear aperture sizes, including diameters of 3, 5, 6, 7, 8 ...

Specifications

Type Of The Device: Isolator
Operating Wavelength: 1030 nm
Max Power: 50 W
Min Isolation: 30 dB
Transmission@λc: ≥92 %
...
Data Sheet
CSRayzer offers different clear apertures and wavelength range free space rotator and isolator, also called Faraday rotator and isolator, which is a device that changes the polarization state of light based on the Faraday magneto-optical effect. It is available with different clear aperture sizes, including diameters of 3, 5, 6, 7, 8 ...

Specifications

Type Of The Device: Isolator
Operating Wavelength: 1064 nm
Max Power: 100 W
Min Isolation: 35 dB
Size: 70x60x41 mm
...
Data Sheet
CSRayzer offers different clear apertures and wavelength range free space rotator and isolator, also called Faraday rotator and isolator, which is a device that changes the polarization state of light based on the Faraday magneto-optical effect. It is available with different clear aperture sizes, including diameters of 3, 5, 6, 7, 8 ...

Specifications

Type Of The Device: Isolator
Operating Wavelength: 1064 nm
Max Power: 100 W
Min Isolation: 30 dB
Size: 113X54X54 mm
...
Data Sheet
This is a 1064nm High Power Free Space 3mm Faraday Optical Rotator by CSRayzer Optical Technology. CSRayzer offers different clear apertures and wavelength range free space rotators and isolators (a.k.a. Faraday rotators and isolators). This opto-electronic device is used to change the polarization state of light ...

Specifications

Type Of The Device: Other
Operating Wavelength: 1064 nm
Max Power: 0.5 W
Min Isolation: -- dB
Rotator Angle: 22.5±1 °
...
Data Sheet
CSRayzer offers different clear apertures and wavelength range free space rotator and isolator, also called Faraday rotator and isolator, which is a device that changes the polarization state of light based on the Faraday magneto-optical effect. It is available with different clear aperture sizes, including diameters of 3, 5, 6, 7, 8 ...

Specifications

Type Of The Device: Isolator
Operating Wavelength: 1064 nm
Max Power: 50 W
Min Isolation: 30 dB
Clear Aperture: 6 Or Specify mm
...
Data Sheet
CSRayzer offers different clear apertures and wavelength range free space rotator and isolator, also called Faraday rotator and isolator, which is a device that changes the polarization state of light based on the Faraday magneto-optical effect. It is available with different clear aperture sizes, including diameters of 3, 5, 6, 7, 8 ...

Specifications

Type Of The Device: Isolator
Operating Wavelength: 1030 nm
Max Power: 10 W
Min Isolation: 30 dB
Transmission@λc: ≥93 %
...
Data Sheet
CSRayzer offers different clear apertures and wavelength range free space rotator and isolator, also called Faraday rotator and isolator, which is a device that changes the polarization state of light based on the Faraday magneto-optical effect. It is available with different clear aperture sizes, including diameters of 3, 5, 6, 7, 8 ...

Specifications

Type Of The Device: Isolator
Operating Wavelength: 808 nm
Max Power: 50 W
Min Isolation: 30 dB
Clear Aperture: 6 Or Specify mm
...
Data Sheet
CSRayzer offers different clear apertures and wavelength range free space rotator and isolator, also called Faraday rotator and isolator, which is a device that changes the polarization state of light based on the Faraday magneto-optical effect. It is available with different clear aperture sizes, including diameters of 3, 5, 6, 7, 8 ...

Specifications

Type Of The Device: Isolator
Operating Wavelength: 1064 nm
Max Power: 100 W
Min Isolation: 35 dB
Clear Aperture: 5 mm
...
Data Sheet
CSRAYZER’S High Power Free Space Isolator HIO Series Products, which also named Faraday Isolators, are magneto-optical devices that only allow light to pass through in one direction. It can isolate the light source and block its back reflection.

Specifications

Type Of The Device: Isolator
Operating Wavelength: 808 nm
Max Power: 50 W
Min Isolation: 30 dB
Data Sheet
The TGG Based Optical Isolator is characterized with low insertion loss, high isolation, high return loss, excellent environmental stability and reliability. It has been widely used in lasers, transmitters and other fiber optics communication equipment to suppress back reflection and back scattering.DK Photonics offers a large ...

Specifications

Type Of The Device: Isolator
Operating Wavelength: 680 nm
Max Power: 100mW W
Min Isolation: 25 dB
Data Sheet
The TGG Based Optical Isolator is characterized with low insertion loss, high isolation, high return loss, excellent environmental stability and reliability. It has been widely used in lasers, transmitters and other fiber optics communication equipment to suppress back reflection and back scattering.  DK Photonics offers a ...

Specifications

Type Of The Device: Isolator
Operating Wavelength: 532 nm
Max Power: 0.05 W
Min Isolation: 25 dB
Data Sheet
The TGG Based Optical Isolator is characterized with low insertion loss, high isolation, high return loss, excellent environmental stability and reliability. It has been widely used in lasers, transmitters and other fiber optics communication equipment to suppress back reflection and back scattering.DK Photonics offers a large ...

Specifications

Type Of The Device: Isolator
Operating Wavelength: 500~1100nm nm
Max Power: 0.5,1, 2, 5,10,20 W
Min Isolation: 0.8 dB
Data Sheet
TGG Based Optical Isolator is characterized with low insertion loss, high isolation, high return loss, excellent environmental stability and reliability. It has been widely used in lasers, transmitters and other fiber optics communication equipment to suppress back reflection and back scattering.DK Photonics offers a large selection ...

Specifications

Type Of The Device: Isolator
Operating Wavelength: 635 nm
Max Power: 100mW W
Min Isolation: 25 dB
Data Sheet
The Optical Isolator is characterized with low insertion loss, high isolation, high return loss, excellent environmental stability and reliability. It has been widely used in lasers, transmitters and other fiber optics communication equipment to suppress back reflection and back scattering.If you do not see a standard isolator that ...

Specifications

Type Of The Device: Isolator
Operating Wavelength: 780~1100nm nm
Max Power: 10 W
Min Isolation: 40 dB
Data Sheet
The TGG Based Optical Isolator is characterized with low insertion loss, high isolation, high return loss, excellent environmental stability and reliability. It has been widely used in lasers, transmitters and other fiber optics communication equipment to suppress back reflection and back scattering.DK Photonics offers a large ...

Specifications

Type Of The Device: Isolator
Operating Wavelength: 780 nm
Max Power: 5 W
Min Isolation: 25 dB
Data Sheet
The TGG Based 1.0 m Optical Circulator is a high per formance light-wave component that routes incoming signals from Port 1 to Port 2, and incoming Port 2 signals to Port 3. They’re characterized with low insertion loss, high isolation, high power handling, high return loss, low PDL, low PMD, excellent environmental ...

Specifications

Type Of The Device: Circulator
Operating Wavelength: 1064 nm
Max Power: 10 W
Min Isolation: 22 dB
Data Sheet

Frequently Asked Questions

An optical isolator contains a Faraday rotator, a component characterized by rotating input linear polarization by 45 degrees. It is important to note that the direction of polarization rotation is dependent on the orientation of the Faraday rotator but not on the light travel direction. In other words, if, for instance, the polarization is rotating clockwise relative to the propagation direction, in the reverse-propagation direction, the rotation will be counter-clockwise. At the input of an optical isolator there is a linear polarizer ensuring that only linearly polarized line enters the system. There is a second linear polarizer present at the exist that let’s through the light that is now rotated by 45 degrees relative to the input. If there is a back reflection from any subsequent optical components in the system, the light might be able to back enter from the exit polarizer and further rotate in the same direction by 45 degrees resulting in a 90 degree rotation relative the orientation of the entrance polarizer, which will block the light from passing through the system in the reverse direction.

Yes, the rotation degree of the polarization is dependent on the optical wavelength of the input light. Additionally, the polarizers and the other elements of an optical isolator may have special optical coatings which are also wavelength dependent. Some optical isolators are only suitable for a specific wavelength, while others can operate over a range of wavelengths.

Yes, this is true for optical isolators containing polarizers. However, polarization-independent isolators exist.

Yes, optical circulators and isolators that are suitable for free-space coupling have been designed and are used in free-space communication systems. They are often used to reduce or eliminate back-reflection of light from the optical system that otherwise might enter the laser and deteriorate its performance and even damage it.

Yes, in the case of polarization-dependent circulators, the polarization of the input beam should be linear and match the input polarizer orientation. However, polarization-independent optical circulators exist and are used in fiber optical communications as the polarization state of light is likely to vary as it propagates through the fiber.

Both components are widely used in optical communications systems to send signals along different channels. They are also used in dispersion compensation devices or as means to protect laser systems from back reflection. Optical isolators are also used in multistage amplified laser systems to prevent back-reflection from entering back into the laser which can deteriorate or damage the laser system.

There are 117 different Fiber Isolators & Circulators from suppliers and manufacturers listed in this category. In just a few clicks you can compare different Fiber Isolators & Circulators with each other and get an accurate quote based on your needs and specifications. Please note that the prices of Fiber Isolators & Circulators vary significantly for different products based on various factors including technical parameters, features, brand name, etc. Please contact suppliers directly to inquire about the details and accurate pricing information for any product model. Simply navigate to the product page of interest and use the orange button to directly reach out to the respective supplier with one click.

Did You know?

An optical isolator is a device that acts as an optical diode allowing transmission of light in one direction and preventing propagation in the opposite direction. It is primarily used as a component in laser systems to prevent a reflected beam from entering back into the laser cavity that could otherwise induce much instability and eventually a damage of internal laser components. The key element of isolators is the Faraday Rotator, which harnesses the Faraday Effect to rotate the polarized beam under an intense magnetic field. Optical circulators operate on the same principle to isolate light travelling in opposite directions. They usually have multiple ports and ensure that light entering from one port exits from the next causing the light to “circulate”.