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High-Power DBR-Tapered Laser at 980 nm for Single-Path Second Harmonic Generation

2009; IEEE Photonics Society; Volume: 15; Issue: 3 Linguagem: Inglês

10.1109/jstqe.2009.2013479

1558-4542

C. Fiebig, G. Blume, M. Uebernickel, David Feise, Christian Kaspari, Katrin Paschke, J. Fricke, H. Wenzel, G. Erbert,

Photonic and Optical Devices

We present experimental results about edge-emitting distributed-Bragg-reflector-tapered diode lasers emitting at 980 nm. The investigated lasers show an output power of up to 12 W with a conversion efficiency of about 45%. The lasers also exhibit a small vertical divergence <15deg full-width at half maximum (FWHM), a nearly diffraction-limited beam quality, and a narrow spectral linewidth with FWHM smaller than 12 pm. These properties allow efficient single-pass second harmonic generation with power levels of more than 1 W at 488 nm.