PM Fused Fiber Coupler (FPMC, 1x2 / 2x2)
Polarization-Maintaining Fused Fiber Coupler (FPMC) manufactured with precision automated fused biconical taper (FBT) process. Delivers low excess loss (<=0.2 dB), high extinction ratio (up to 22 dB), and outstanding thermal stability for 1x2 and 2x2 PM optical splitters.
Technical Specifications
Parameter
Specification
Unit
Port Configuration
1x2 / 2x2
-
Center Wavelength
1550, 1310, 1064, 980, 850, 780
nm
Operating Bandwidth
±15 (1310/1550), ±10 (780-1064)
nm
Coupling Ratio Options
01/99, 05/95, 10/90, 20/80, 50/50
%
Max. Excess Loss (A Grade)
0.20 (1310/1550), 0.30 (980/1064), 0.40 (780/850)
dB
Min. Extinction Ratio @ 23°C
20 (Both axes) / 22 (Fast axis blocked)
dB
Min. Return Loss
50
dB
Max. Optical Power (CW)
500
mW
Fiber Type
PM Panda Fiber on all ports
-
Operating Temperature
-40 to +85
°C
Storage Temperature
-40 to +85
°C
Package Dimensions
dia. 3.0 x 54 mm / dia. 3.0 x 70 mm / 90 x 20 x 9.5 mm
mm
Technical Datasheet Note
A Grade and P Grade available. With connectors, IL increases by 0.3 dB, RL decreases by 5 dB and ER decreases by 2 dB.
A Grade and P Grade available. With connectors, IL increases by 0.3 dB, RL decreases by 5 dB and ER decreases by 2 dB.
Configuration and ordering notes
Configuration parameters include port configuration (1x2 tap or 2x2 splitter), coupling ratio, and operating wavelength.
Selection Guidance: Review extinction ratio formulas, axis alignment, and splicing tolerances in our PM Fiber Components & Extinction Ratio Guide ↗ or Fiber Polarizer Selection Guide ↗.
Key Applications
Coherent fiber optic sensors; Fiber gyroscopes; Optical amplifiers and fiber lasers; Polarization test instrumentation.
Package Drawing
Need an exact configuration?
A quotation review can begin with the application, quantity and available component information. Wavelength, optical power, fiber and termination details can be clarified with engineering.