1750nm 1x2 2x2 PM Fiber Fused Coupler

Wavelength: 1750nm

Configuration: 1x2, 2x2

Fiber Type: PM Panda Fiber

Max. Optical Power: 2W CW

1750nm 1x2 2x2 PM Fiber Fused Coupler
         1750nm 1x2, 2x2 Polarization Maintaining (PM) Fused Coupler is built with fused biconical taper (FBT) technology, it
can be used in split the optical signal power into two parts with even or various coupling ratio and keep the polarization 
maintaining, it's widely applied in fiber optic sensor, fiber amplifier system and fiber optic diffraction field.
Application:
Features:
Fiber Optic Amplifier
Fiber Optic Sensor
Fiber Laser
Optical Diffraction System
Low Excess Loss
Low Insertion Loss
High Extinction Ratio
High Reliability
Specification:
Parameter Symbol Value Unit
Center Wavelength λ 1750 nm
Bandwidth BW ±10 nm
Max. Excess Loss EL 0.8 dB
Max. Insertion Loss 50/50 (±3.5) IL 3.6/3.6 dB
40/60 (±2.5) 5.2/3.1 dB
30/70 (±2.5) 5.8/2.0 dB
20/80 (±2.0) 8.0/1.5 dB
10/90 (±1.2) 11.6/1.2 dB
5/95 (±0.8) 14.8/0.8 dB
3/97 (±0.7) 17.0/0.5 dB
2/98 (±0.6) 18.4/0.4 dB
1/99 (±0.4) 22/0.35 dB
Min. Extinction Ratio ER 20 dB
Min. Directivity 50 dB
Min. Return Loss RL 50 dB
Fiber Type PM Panda Fiber -
Max. Tensil Load 5 N
Max. Optical Power (CW) P 2 W
Operating Temperature T -40~75
Storage Temperature T -40~85
Package Dimension Φ3.0×L54 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, EL will be 0.2dB higher, ER will be 2dB lower, slow axis is default aligned to the connector key.
             If need optical power more than 2W CW, please contact us to confirm. Connectors only 1W (Continue Wavelength) optical power guarantee. 
Drawing:
Ordering Information (Part Number):
 PMFUC-WWWW-PP-A-RR-J-LL-CC
 WWWW  PP  A  RR  J  LL  CC
 Wavelength  Port  Working Axis  Coupling 
 Ratio
 Fiber Jacket  Fiber Length  Connector 
 1700 - 1700nm  12 - 1x2  B - Both Axes  01 - 1/99  B - 250um Bare Fiber  05 - 0.5m  NE - None
 1720 - 1720nm  22 - 2x2       Working  02 - 2/98  9 - 900um Loose Tube  10 - 1.0m  FA - FC/APC
 1750 - 1750nm  S - Slow Axis   03 - 3/97         15 - 1.5m  FU - FC/UPC
 SSSS - Specify       Working  05 - 5/95  20 - 2.0m  SA - SC/APC
 F - Fast Axis   10 - 10/90  SS - Specify  SU - SU/APC
      Working  20 - 20/80  LA - LC/APC
 30 - 30/70  LU - LC/UPC
 40 - 40/60  SS - Specify
 50 - 50/50
 SS - Specify

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