980nm Large Core Multimode Fused Fiber Coupler
Specialized 980nm Large-Core Multimode Fused Fiber Coupler engineered for combining or tapping high-power 915nm, 940nm, 976nm, and 980nm laser diode pump beams. Manufactured with 105/125um NA 0.22 fiber handling up to 30W optical power with low excess loss (<=0.4 dB).
Technical Specifications
Parameter
Specification
Unit
Center Wavelength
980, 976, 940, 915
nm
Operating Bandwidth
±20
nm
Port Configuration
1x2 / 2x2
-
Coupling Ratio Options
01/99, 05/95, 10/90, 50/50
%
Max. Insertion Loss (50/50)
3.6
dB
Max. Excess Loss
0.4
dB
Min. Directivity
35
dB
Max. Optical Power (CW)
30
W
Fiber Type
105/125um Step Index Multimode Fiber, NA 0.22
-
Operating Temperature
-20 to +70
°C
Package Dimensions
dia. 3.0 x 54 mm / dia. 3.0 x 60 mm / 90 x 20 x 9.5 mm
mm
Technical Datasheet Note
High-power handling up to 30W requires mounting inside a metal heat sink fixture. 100% burn-in tested.
High-power handling up to 30W requires mounting inside a metal heat sink fixture. 100% burn-in tested.
Configuration and ordering notes
Configuration parameters include exact pump diode wavelength (915nm, 976nm, or 980nm) and desired coupling split ratio.
Selection Guidance: Compare combiner architectures and fiber matching in our Pump Combiner Selection Guide ↗ or N×1 vs (6+1)×1 Architecture Guide ↗.
Key Applications
Fiber laser pump power sharing; Diode laser redundancy combiner; Solid-state laser side pumping; Laser medical devices.
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.