4 port Optical Circulator
Four-port Polarization Insensitive 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 three-port circulator, four-port device has one additional bi-directional port. Hence, 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.
Description
| Featrues | Applications |
| Low Insertion Loss | Optical Amplifier |
| Wide Band High Isolation | Metro Area Network |
| Low PDL | Wavelength Add/Drop |
| Wide Band High Isolation | Dispersion Compensation |
| High Stability and Reliability | Bi-Direcation Communication |
| Epoxy-free on Optical Path |
Performance Specifications
| Parameter | 4 Port | |||
| Operating Wavelength (nm) | 1310, 1480,1550 | C+L (1525~1610) | S+C+L
(1460~1620) |
|
| Isolation (λc,23℃ all sop) (dB) | ≥40 | ≥40 | ≥40 | |
| Isolation (Over all λ, T, sop) (dB) | ≥35 | ≥30 | ≥30 | |
| Insertion Loss (λc,23℃ all sop) (dB) | ≤1.0 | ≤1.0 | ≤1.3 | |
| Polarization dependent Ioss (dB) | ≤0.15 | |||
| Return Loss (dB) | ≥50 | |||
| PMD (ps) | ≤0.1 | |||
| Directivity （dB） | ≥50 | |||
| Power (mW) | ≤300 | |||
| Fiber Type | SMF-28e | |||
| Operating Wavelength (℃) | 0 ~ +70 | |||
| Storage Wavelength (℃) | -40 ~ +85 | |||
| Package (mm) | bare fiber or 900um loose tube | φ5.5×L50 | ||
| 2.0mm or 3.0mm cable | 90x20x10 | |||
Ordering Information
| Configuration | Wavelength | Package | Fiber Type | Fiber Length | Connector |
| 3=3Port
4=4Port |
1310=1310 1480=1480 1550=1550 C+L=1525~1610 S+C+L=1460~1620 X=Customized |
S1=Stainless stee tube A0=90x20x10 X=Customized |
00=bare fiber 09=900um tube 20=2.0mm Cable 30=3.0mm Cable |
05=0.5m 10=1.0m 15=1.5m X=Customized |
00=none LP=LC/UPC LA=LC/APC SP=SC/UPC SA=SC/APC FP=FC/UPC FA=FC/APC X=Customized |
The 4port Optical Circulator is a multi-port non-mutual-easy optical device, and light can only travel in one directtion. If the signal is input from Port 1, then output from Port 2, if the signal input from Port 2, then output from Port 3. And if the signal input from Port 3, then will be output from Port 4.
