Passive Components

(N+1)×1 PM Pump Combiners

Lightel's (N+1)×1 Polarization Maintaining (PM) pump combiners are designed to combine one or more pump laser beams using multimode fiber and one signal beam on PM fiber into one PM output optical fiber with dual cladding. The device features high Polarization Extinction Ratio (PER) and pump efficiency and is available in (1+1)×1, (2+1)×1, (6+1)×1 and custom configurations.


  • High PER
  • High Coupling Efficiency
  • Stable and Reliable
  • Custom Configurations Available
Parameter Specification
Port Configuration (1+1)×1 or (2+1)×1 (6+1)×1
Pump Wavelength 800nm ~ 1000nm
Signal Wavelength 1030nm ~1080nm or 1450nm ~ 1600nm
Signal Input Fiber (note 3) x/125 x/250 20/400 x/125 x/125 or x/250
or 20/400
Pump Fiber 105/125
0.15NA/0.22NA or
200/220 0.22NA
0.15NA/0.22NA or
200/220 0.22NA
Output Fiber (Note 3) y/125 or y/250 y/250 20/400 y/125 y/250 20/400
Pump Efficiency (Note 4) >90% >93% >95% >90% >93% >95%
Signal Insertion Loss <0.5dB <0.4dB <0.4dB <0.7 dB
Total Power Handling 50W 100W 200W 300W 600W 900W
Polarization Extinction Ratio ≥18dB
Return Loss >45dB
Pigtail Standard 1m or custom
Operating Temperature 0~75°C
Storage Temperature -40~85°C
Note 1: Values are referenced without connectors.
Note 2: Other package dimensions and optical performances available by request.
Note 3: x, y specifies fiber core size.
Note 4: Fiber size and type dependent.