High-Brightness Laser Diodes with External Feedback

Authored by: Mohamad Anas Helal , Simeon N. Kaunga-Nyirenda , Steve Bull , Eric Larkins

Handbook of Optoelectronic Device Modeling and Simulation

Print publication date:  October  2017
Online publication date:  October  2017

Print ISBN: 9781498749565
eBook ISBN: 9781315152318
Adobe ISBN:


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High-power laser diodes first gained interest as pump sources for solid-state lasers, with cost/watt and reliability as the primary market drivers. In recent years, new markets have been opened by increases in the brightness of the laser diode sources and by advances in the optical systems for beam shaping and combining. The work in this chapter is motivated by the development of high-brightness laser diodes for direct-diode laser systems targeting industrial applications and a desire to illustrate the important role of laser simulation tools at both the device and system level. Traditionally, welding and sheet metal cutting are the most lucrative industrial laser markets, but they are also the most demanding in terms of brightness. Laser additive manufacturing processes, such as selective laser melting, are also quickly becoming a reality and allow the fabrication of structures that cannot be made by traditional means. Their automated nature is opening the door to new manufacturing paradigms.

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