Fiber End Caps

Product Item : QiM20-010
Category： Micro Glass Rods
Material: Corning fused silica, Heraeus fused silica, Ohara fused silica
Diameter: 1.8-100 mm
Optical aperture: 90% of the central area
Surface quality: 10/5 S/D, the best can achieve 0/0 S/D
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Fiber End Caps

Fiber end cap is a high-power device designed for processing the output end face of high-power fiber lasers and fiber amplifiers, and is a high-power fiber passive device that achieves fiber end face protection. By expanding the output beam, the optical power density at the output end is reduced, and a special end face angle design is adopted to significantly reduce the echo reflection at the end face. Fiber end caps can be applied to the output end of lasers (amplifiers) with high peak power or high average power, with minimal distortion of the output beam. The fiber end cap, as an important optical component in QBH (Fiber Laser Output Head), is mainly used to solve the problem of fiber laser output and also to solve the problem of reflection in industrial processing.

Our company produces fiber end caps with ultra smooth polished surfaces on both sides to reduce subsurface damage; Selecting low absorption film materials to reduce the high absorption caused by the material, effectively controlling the risk of temperature rise under high power, and achieving high damage threshold coating; The power has increased from one hundred watts/ kilowatt to several thousand watts/ten thousand watts; Transmission power loss greater than or equal to 99% or higher; Sizes and materials can be customized according to requirements.

Product Parameters

Material	Corning fused silica, Heraeus fused silica, Ohara fused silica
Dimension	Customized
Diameter	1.8-100 mm
Optical aperture	90% of the central area
Flatness	λ/10 @632.8 nm
Surface quality	10/5 S/D, the best can achieve 0/0 S/D
Parallelism	<15″
Wavefront distortion	<λ/8@632.8 nm
Coaxiality	<0.02mm
Films	Customized by customer

Product Features

• High laser damage threshold,
• High carrying power,
• Low beam distortion,
• High return loss,
• Stable and reliable.

Product Application

• Fiber Amplifier
• Fiber laser
• Laser Processing Equipment Mating

We offer various customized specifications of fused quartz end caps, with materials including Corning fused quartz, Heraeus fused quartz, Ohara fused quartz, etc. Coating options include IAD and IBS processes, providing customers with ideal solutions for fiber laser applications from low power to high power.