QBH High Power Laser Delivery Cable

Lightel’s QBH-style cable assembly for high power laser delivery provides low signal loss and excellent beam quality with power handling up to 2 kW. Our QBH-style laser heads are equipped with a safety interlock and are available in air-cooled or water-cooled versions with an anti-reflection coated quartz block to reduce power density at the output. In addition, all cables are offered with an optional integral cladding power stripper (CPS) to reduce any cladding modes due to beam reflections. The assemblies are available in standard or customer specified armored pigtail lengths and colors.


  • Low Signal Loss
  • High Beam Quality
  • Anti-Reflection Coated Quartz Block
  • Air- or Water-Cooled
  • Optional Integral Cladding Power Stripper
Port ConfigurationFiber In, free-space out
Signal Wavelength915, 1060, 1080, 1940, 2000 nm
Signal Insertion Loss< 0.13 dB
Output Beam Ellipticity>95% (for single mode input)
Power HandlingAir-cooled: ≤ 200 W
Water-cooled: ≤ 2 kW
Tensile Load25 kg
Armored Length (B)1 - 20 m
Fiber Pigtail0.5 - 2 m
Operating Temperature0~75°C
Storage Temperature-40~85°C
Cladding and Back Reflection Power (with CPS)Air-cooled: < 10 W
Water-cooled: < 500 W

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