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PM 4-port Optical Circulator
PM 4-port Optical Circulator

1550nm 4-port Polarization Maintaining Optical Circulator

Wavelength: 1550nm

Circulator Type: Polarization Maintaining

Port: 4 ports

Fiber Type: PM Panda Fiber

Max. Handling Power: 500mW CW

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1550nm 4-port Polarization Maintaining Optical Circulator
     1550nm 4-port Polarization Maintaining Optical Circulator is a fiber passive component built with SM fiber, which can 
change signal light transmission path, the signal can be delivered from Port 1 to Port 2, Port 2 to Port 3, Port 3 to Port 4, 
the high isolation can block the back reflection light. It's widely used in Fiber Amplifier System, Fiber Optic Sensor and 
Testing System field.
Application:
 Features:
Fiber Optic Sensor
Fiber Optic Amplifier
Coherent Detecting
Testing System 		High Extinction Ratio
High Isolation
Low Insertion Loss
High Reliability
Specification:
Parameter Symbol Value Unit
Center Wavelength λ 1550 nm
Bandwidth BW ±20 nm
Typ. Insertion Loss (Port 1 to 2, 2 to 3, 3 to 4) IL 0.8 dB
Max. Insertion Loss (Port 1 to 2, 2 to 3, 3 to 4) IL 1.0 dB
Typ. Isolation (Port 2 to 1, 3 to 2, 4 to 3) Iso 50 dB
Min. Isolation (Port 2 to 1, 3 to 2, 4 to 3) Iso 40 dB
Min. Extinction Ratio ER 20 dB
Min. Cross Talk Ct 50 dB
Min. Directivity   50 dB
Min. Return Loss RL 50 dB
Max. Optical Power (CW) P 500 mW
Max. Tensil Load   5 N
Fiber Type   PM Panda fiber -
Operating Temperature T -5~50 ℃
Storage Temperature T -40~85 ℃
Package Dimension   Φ5.5×L35 mm
Notice: Above specifications are tested at center wavelength without connector in room temperature @23℃. 
             For devices with connectors, IL will be 0.3dB higher, RL will be 5dB lower, ER will be 2dB lower, slow axis is default aligned to the connector key.
Drawing:
Ordering Information (Part Number):
 PMCIR-WWWW-P-A-J-LL-CC
 WWWW  P  A    J  LL    CC
 Wavelength  Port  Working Axis    Fiber Jacket  Fiber Length    Connector 
 1310 - 1310nm  4 - 4 Ports  F - Fast Axis Blocked  B - 250um Bare Fiber  05 - 0.5m    NE - None
 1450 - 1450nm         Slow Axis Working  9 - 900um Loose Tube  10 - 1.0m    FA - FC/APC
 1480 - 1480nm     B - Both Axes Working      15 - 1.5m    FU - FC/UPC
 1550 - 1550nm           20 - 2.0m    SA - SC/APC
 1580 - 1580nm              SS - Specify    SU - SU/APC
               LA - LC/APC
                  LU - LC/UPC
                 SS - Specify
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