Product Overview of 4 Port Optical Circulator

Fiber Optical 4 Ports 1550nm Circulator For CATV System

Fiber Optical Circulator

4 port optical circulator is a special type of circulator that has one input (port 1), one output (port 4) and two common ports (port 2&3). The light goes through port 1 to port 2. At port 2, any incoming light is guided to port 3 as output, while all input from port 3 is guided to port 4 as output.
Compared to 3 port circulator, four port device has one additional bi-directional port. Thus, it can be used to construct more flexible or more complex optical fiber sub-systems, such as add/drop module, mux/demux module, multi-port bi-directional splitters, WDM optical router, etc.

Features & Applications of 4 Port Optical Circulator

Features:

Four-port operation
Wide band (+/-30nm at 1310nm or 1550nm)
High isolation
Low PDL
Epoxy free optical path

Applications:

Add/drop WDM systems
Bi-directional communication systems
Optical dispersion compensation systems

Specifications of 4 Port Optical Circulator

Test Environment

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