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Key Features

• 4.0 W output power at 808 nm

• 4.5 W output power at 812 nm

• High reliability

• 105 µm aperture

• 0.22 NA

• Isolated electrical contacts

The highly reliable JDSU 2495-L4 series diode lasers offer 4 W of laser power from

a 105-µm fiber into a 0.22 numerical aperture (NA) at 808 nm. It is an ideal source

for pumping solid-state materials such as Nd: YAG and Nd: Vanadate. In addition,

a 4.5 W version is available at 812 nm for applications with broader wavelength

tolerances such as medical and dental.

The L4 multimode pump module is based on single-emitter diode lasers, and

allows for a radical departure from standard bar-based pumping architectures.

Hundreds of watts of highly reliable pump power can be achieved with a

distributed architecture using multiple L4 diode lasers 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 pump assembly lifetimes.

The L4 multimode pump module eases thermal management by distributing the

diode lasers (heat sources), allowing for a simple air- or water-cooled architecture

in laser pumps and direct diode applications.

Applications

• Solid-state laser pumping

• Medical procedures

• Direct-diode application

High-Power 4.5 W 808 nm Fiber-Coupled Diode Laser

2495-L4 Series

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