Laser Diode, 915 or 939 nm, Fiber-Coupled, 5W
 

JDSU's ultra-reliable 6390 series laser diodes offer 5 W of laser power from a 100 μm fiber into 0.2 NA. The L3 package is a redesign of the existing fiber-coupled L2 package, incorporating telecom design approaches into a commercial product and resulting in a reliability of >200,000 hours MTBF.

The L3 multimode pump modules are based on single-emitter diodes and allow a radical departure from standard bar-based pumping architectures. Hundreds of Watts of ultra-reliable pump power can easily be achieved with a distributed architecture using L3s and a multimode fiber coupler or fiber bundle. In a distributed architecture, "cascading" failure modes are avoided, and ensemble statistics can be used to predict lifetimes. The L3 multimode pump modules ease thermal management by distributing the diodes (heat sources), allowing air or water cooled architectures for laser pumps and direct-diode applications.

Key Features

• 5 W output power
• 100 µm aperture
• 0.2 NA
• Ultra-reliable

Applications

• Yb laser pumping
• Material processing
• Graphic arts
• Medical
• Remote power generation
• Pyrotechnic ignition

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