Fiber Optic Cables

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Fiber Optic CablesRQB Fiber Optic Cables from Coherent Inc. are air-cooled, beam delivery, fiber optic cables with a standard QBH interface, for use with fiber lasers operating at continuous wave power levels up to 1.5 kW and pulsed lasers as high as 1 MW.

The cables incorporate quartz block technology, which enables the use of anti-reflection coatings to reduce overall losses to <3 percent. Additionally, these cables feature a mode stripper to prevent unwanted back reflections or pump light from propagating in the cladding as well as an integrated thermoswitch in the connector to protect against overheating. They also include a safety interlock that continuously monitors the status of the fiber.

RQB Fiber Optic Cables are available with core diameters from 50 to 1000 µm and a 0.20 numerical aperture in lengths of 5 to 200 m. The use of external water cooling extends the RQB maximum power rating to 3 kW. The option of a square cross-section core delivers a flat-top square beam with dimensions ranging from 100 × 100 µm to 1000 × 1000 µm.

Published: July 2017
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