780-2050nm 20W High Power PM Fused Coupler
Fused biconical taper high-power PM coupler supporting up to 20W CW laser power across 780nm to 2050nm bands, engineered for high reliability fiber laser splitters and combiners.
Technical Specifications
Parameter
Specification
Unit
Center Wavelength
780, 808, 850, 980, 1030, 1064, 1310, 1480, 1550, 1950, 2000, 2050
nm
Operating Bandwidth
±15 (1310-2050), ±10 (780-1064)
nm
Configuration
1x2 or 2x2
-
Max. Excess Loss
0.5 (1310/1550), 0.7 (980-1064), 0.9 (780/850/2000)
dB
Min. Extinction Ratio
≥ 20 (≥ 18 for 2000nm)
dB
Split Ratio
1/99 to 50/50
%
Min. Return Loss
≥ 50
dB
Max. Optical Power (CW)
5, 10, 20
W
Max. Tensile Load
5
N
Fiber Type
PM Panda Fiber
-
Package Dimensions
dia. 3.0 x 60 mm (<10W) / 70 x 12 x 8 mm (<=20W)
-
Operating Temperature
+10 to +50
°C
Technical Datasheet Note
Tested at 23°C without connectors. For 10W and 20W models, heat dissipation mounting is required. Bare fiber leads standard; 900µm loose tube optional.
Tested at 23°C without connectors. For 10W and 20W models, heat dissipation mounting is required. Bare fiber leads standard; 900µm loose tube optional.
Configuration and ordering notes
Configuration parameters include CW power level (5W, 10W, 20W), wavelength band, coupling split ratio (1%, 5%, 10%, 50%), and package mounting style.
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
Fiber laser power splitting, high-power MOPA fiber amplifier taps, 2µm thulium fiber laser monitoring, and coherent fiber combiner systems.
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.