Optical circulator
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Optical circulators are optical passive devices that are widely used to realize non-reversible optical transmission. The reverse transmission light is guided, separated from the forward transmission light in space, and output from another port. This characteristic is of great significance to the two-way transmission and communication of optical signals. It is also used in optical transceivers, fiber Bragg grating filters and fiber amplifiers. The optical circulator can separate the light transmitted in different directions in the optical fiber. This brings flexibility and convenience to the design of the system. The relevant parameters are as follows:
grade | P grade | Class A |
structure | Port 1 to Port 2; Port 2 to Port 3 |
Working wavelength (nm) | 1310/1550/C&L band |
Standard input loss (23℃) | 0.6 | 0.8 |
Maximum insertion loss (23℃) | 0.8 | 1.0 |
Maximum isolation (dB) | 50 |
Minimum isolation (dB) | 40 |
Directivity (dB) | 50 |
Polarization loss (dB) | 0.15 |
Response time (ps) | 0.1 |
Return loss (dB) | 50 |
Bandwidth (nm) | +/-30 |
Maximum working power (mw) | 300 |
Working temperature (℃) | 0~70 |
Storage temperature (℃) | -40~85 |
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application
1) Fiber Amplifier
2) Cable TV optical fiber line connection
3) Optical fiber line system test
4) Optical fiber LAN
5) Broadcast communication
6) Optical fiber single fiber bidirectional transmission
feature
1)High isolation
2) Low insertion loss
3) High return loss
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