Nx1 Pump Combiner
High-power multi-mode pump combiner for fiber lasers and amplifiers, supporting 3x1 and 7x1 port configurations with >95% pump transfer efficiency and high thermal stability.
Technical Specifications
Parameter
Specification
Unit
Configuration
3x1 or 7x1
-
Pump Wavelength Range
800 - 1000
nm
Pump Input Fiber (3x1)
105/125 µm, 0.22 NA
-
Pump Input Fiber (7x1)
105/125 0.22NA or 200/220 0.22NA
-
Output Fiber (3x1)
Y/125 or 200/220 µm
-
Output Fiber (7x1)
200/220, Y/250, or 20/400 µm
-
Pump Transfer Efficiency
> 95
%
Max. Power per Single Pump
200
W
Standard Package Options
D1 (Ø4.0x60mm), D2 (50x5x5mm), D3 (70x12x8mm), D4 (75x12x8mm), D5 (80x12x10mm), D6 (100x15x10mm), D7 (100x28x12.6mm HP)
-
Package Dimensions
D1: dia. 4.0 x 60 mm to D7: 100 x 28 x 12.6 mm - HP
-
Operating Temperature
-5 to +70
°C
Storage Temperature
-40 to +85
°C
Technical Datasheet Note
Pump transmission efficiency is measured at 915nm or 976nm with diode lasers. Custom input/output fiber combinations and high-power packages (D7) available upon request.
Pump transmission efficiency is measured at 915nm or 976nm with diode lasers. Custom input/output fiber combinations and high-power packages (D7) available upon request.
Configuration and ordering notes
Configuration parameters include total combined pump power, number of pump diodes (3x1 vs 7x1), pump core/clad diameter and NA, and matching output double-clad fiber diameter.
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
High-power continuous wave (CW) and pulsed fiber lasers, optical fiber amplifiers, direct diode laser systems, and industrial laser cutting/welding sources.
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.