Spectrally Narrowed and Wavelength-Stabilized High-Power, High-Efficiency 808 nm and 975 nm Diode Laser Pumps

摘要

Spectrally narrowed, high-power, broad-area laser diodes with monolithic wavelength-stabilization technology (WST) using distributed feedback (DFB) technique have been developed in the 808nm and 975nm wavelength regions. Such pump lasers are useful for various military applications such as improving the system electrical-to-optical power conversion efficiency and operating temperature range of neodymium-doped DPSS/microchip lasers, pumping alkali vapor lasers and fiber lasers with low quantum defect. Specifically, we have demonstrated pump lasers with 3A at the FWHM emission bandwidth, 0.07nm/°C thermal wavelength tuning rate and power conversion efficiency of 52% and 62% at 808nm and 975nm respectively. Key Words: DFB Laser, Semiconductor Laser, Multimode Laser, Power Conversion Efficiency