Passive Components

Fiber End Cap (PM or Non-PM)

High Power Fiber End-Caps (FEC) can be used for high power fiber lasers and fiber amplifiers. These devices can be used to reduce the power density at the output of the fiber facet. A mode stripper is incorporated into all Lightel FECs to clean the cladding from unwanted back-reflected light.


  • High Power Applications
  • Low Signal Loss and Beam Quality Degradation
  • High Extinction Radio (For PM Fiber)
  • Integral Mode Stripper
  • Stable and Reliable


  • High Power Fiber Lasers
  • Scientific Research
  • Sensors
Parameter Specification
Port Configuration Fiber in, free-space out
Signal Wavelength 800 nm ~ 2000 nm
Input Fiber x/125 x/250 x/400 200/220 400/440
Signal Insertion Loss <0.1 dB
Output Beam Ellipticity >95% (for single mode input) -
Polarization Extinction Ratio >20 dB (Input PER ≥23 dB for PM type) -
Power Handling 200W 500W
Return Loss >45 dB
Package Size Φ17mm x 80 mm
Pigtail Standard 2m armor cable, 2.5m PVC, 3m fiber (or custom)
Operating Temperature 0~75°C
Storage Temperature -40~85°C