Simulation and Optimization of High-Power Semiconductor Lasers and Modules

Depending on their application high-power semiconductor laser devices have to be optimized with respect to various design parameters. We discuss the simulation and optimization of the device performance with respect to electrical and thermal properties, output power, wavelength stability, and device reliability using the example of our latest pump-laser generation that has been developed and qualified to support the high-end market of erbium-doped fiber amplifiers. Modeled and measured device properties are compared at each design step. Based on an overall optimization of the device performance fiber Bragg grating (FBG) stabilized telecom-grade pump-laser modules have been realized yielding 750 mW fiber-coupled light output power.