High-power low-noise VCSEL seed laser for fiber laser applications

Baiming Guo; Qing Wang; Bing Xu; Robert van Leeuwen; Jean Francois Seurin; Guoyang Xu; Chuni Ghosh

doi:10.1117/12.842596

5 February 2010 High-power low-noise VCSEL seed laser for fiber laser applications

Baiming Guo, Qing Wang, Bing Xu, Robert van Leeuwen, Jean Francois Seurin, Guoyang Xu, Chuni Ghosh

Proceedings Volume 7615, Vertical-Cavity Surface-Emitting Lasers XIV; 76150H (2010) https://doi.org/10.1117/12.842596
Event: SPIE OPTO, 2010, San Francisco, California, United States

Abstract

The properties of high-power and low-noise seed lasers are key for high performance master oscillator-power amplifier (MOPA) fiber-lasers. We have successfully demonstrated high-power and low-noise seed lasers using our VCSEL technology. We used an external-cavity configuration with optimum cavity design for single-mode control, and the mode-beating problem can be fully avoided compared to the edge-emitter seed lasers. The external-cavity VCSEL achieved high-power single-mode pulsed operation with good mode quality that allowed it to be efficiently coupled into a single-mode PM or non-PM fiber. Using high-speed driving electronics, optical pulse widths of 12ns and shorter were obtained with repetition rates of up to 1 MHz. The optical output peak power obtained is over 10 W. We have also demonstrated a CW version of this high-power VCSEL seed laser achieving single transverse and longitudinal mode with an output power of greater than 0.5 W. The high-power external cavity VCSELs were operated in single longitudinal mode demonstrating narrow spectral line-width of 200kHz, and having very low RIN of -155 dBc/Hz at 1MHz, which was even lower at higher frequencies.

Citation Download Citation

Baiming Guo, Qing Wang, Bing Xu, Robert van Leeuwen, Jean Francois Seurin, Guoyang Xu, and Chuni Ghosh "High-power low-noise VCSEL seed laser for fiber laser applications", Proc. SPIE 7615, Vertical-Cavity Surface-Emitting Lasers XIV, 76150H (5 February 2010); https://doi.org/10.1117/12.842596

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