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| 31-July-2018 | |||||
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Fiber-MART's Three-port Optical Circulator allows light to travel in only one direction. A signal entering to Port 1 will exit Port 2 with minimal loss, while a signal entering Port 2 will exit Port 3 with minimal loss. Light entering port 2 experiences a large amount of loss at port 1, and light entering port 3 experiences a large amount of loss at ports 2 and 1. Optical circulators are non-reciprocal devices. This means that any changes in the properties of the light caused by passing through the device are not reversed by traveling in the opposite direction.
Optical Circulator is widely used in advanced communication systems and fiber-optical sensor systems. All Fiber-MART's products are qualification tested. Characteristics & Applications Low Back ReflectionHigh Extinction RatioLow Insertion LossHigh Return Loss DWDM systemAdd-Drop MultiplexingFiber AmplifierFiber SensorChromatic Dispersion Compensation DevicesFiber Bragg Grating Application Diagram Circulator used to drop an optical channel from a DWDM system using a Fiber Bragg Grating. As the picture shows: The input DWDM channels are coupled into Port 1 of the device with a FBG device connected to Port 2. The single wavelength reflected from the FBG then reenters the Circulator in Port 2 and is routed accordingly to Port 3. The remaining signals pass through the FBG and exit on the top fiber. Order Information Wavelength Type Grade Pigtail Type Length Connector 1310nm 3 Ports P Grade 250um bare fiber 0.5m None 1480nm 4 Ports 900um loose tube 0.8m FC UPC/APC 1550nm 3mm loose tube 1.0m SC UPC/APC 1585nm 2mm loose tube 1.5m LC UPC/APC 1520~1620nm 2.0m ST UPC/APC Note 1. Wavelength: Fiber-MART can customize any other wavelengths according to your requirement. 2. Length: The default length for the cable is 1M, Fiber-MART could also provide 0.5M,0.8M,1.5M, 2.0M ,etc. 3. Connector: Each port of the Circulator could be with any connector such as FC/LC/SC/ST,etc. Please contact us by email to sales@fiber-mart.com or call at +1-86-2786-1199 if you have any requirement for it. |
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