At the input and output fiber end face in high power (hundreds, thousands even dozens of thousand watts) laser, the energy density can be very high. When the laser radiation couple into the fiber end face, there is high risk of fiber burning or surface degradation. 

An end cap at the end face of fiber is a good solution for above issue - an 8mm diameter end cap spliced to the fiber can greatly increase the diameter of the beam spot, which is a very effective method to lower the power density. 

On the surface of the end cap, a high damage threshold AR coating is coated, while on the other side of the fiber, a high efficient cladding power stripper (CPS) is added, and it's epoxy free.

Product Application:

• High power Fiber Laser 

• High Power solid state Laser and fiber coupled diode Laser

Product Features:

• 100% QBH compatible. •

• Fiber spliced to 8mm end cap,

  passed tensile test, +20G vibration test and high/low temp. recylcing test. •

• A cladding power stripper (CPS) is integrated near the end cap, featured in high stripping efficiency,

  low loss in fiber core, epoxy free and cooling the fiber. 

• High damage threshold AR coating on the surface of end cap.