PM Fused WDM
Polarization-maintaining fused fiber wavelength division multiplexer for combining or separating pump and signal wavelength pairs (980/1064, 980/1550, 1064/1550, 793/2000, 1550/2000 nm) in EDFA, laser, and sensing systems.
Technical Specifications
Parameter
Specification
Unit
Wavelength Pairs
980/1064, 980/1550, 1064/1550, 793/2000, 1550/2000
nm
Operating Bandwidth
±15
nm
Max. Insertion Loss (Signal Channel)
0.7 - 0.8
dB
Max. Insertion Loss (Pump Channel)
0.7 - 0.8
dB
Min. Extinction Ratio
18 - 20
dB
Min. Isolation
13 - 18
dB
Min. Directionality
55
dB
Min. Return Loss
50
dB
Max. Optical Power (CW)
3
W
Fiber Type
PM Panda fiber
-
Package Dimensions
dia. 3.0 x 54 mm / dia. 3.0 x 60 mm / dia. 3.0 x 70 mm
mm
Operating Temperature
-5 to +75
°C
Storage Temperature
-40 to +85
°C
Technical Datasheet Note
Package length depends on wavelength pair (54 mm for 980/1550 and 1064/1550; 60 mm for 2000 nm pairs; 70 mm for 980/1064 nm). With connectors, IL increases by 0.3 dB, RL decreases by 5 dB and ER decreases by 2 dB.
Package length depends on wavelength pair (54 mm for 980/1550 and 1064/1550; 60 mm for 2000 nm pairs; 70 mm for 980/1064 nm). With connectors, IL increases by 0.3 dB, RL decreases by 5 dB and ER decreases by 2 dB.
Configuration and ordering notes
Fused PM WDMs combine wavelength channels in a PM fiber path. Wavelength pairing, fiber geometry and axis convention are reviewed for the selected model.
Selection Guidance: Compare TFF vs FBT multiplexing and ASE suppression in our WDM & Optical Filters for EDFA Guide ↗ or PM WDM Selection Guide ↗.
Key Applications
Test instruments; Coherent communication systems; Erbium-doped fiber amplifiers (EDFA); Fiber sensors.
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.