2-W High-Efficiency Ridge-Waveguide Lasers With Single Transverse Mode and Low Vertical Divergence

We report recent developments on 980-nm single-transverse-mode ridge-waveguide (RW) lasers with high efficiency and low-vertical divergence. RW lasers fabricated with 7-μm-wide ridge and 3-mm-long cavity achieve 2-W optical power, 59% maximum power conversion efficiency, as well as a beam divergence...

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Veröffentlicht in:	IEEE photonics technology letters 2017-12, Vol.29 (23), p.2005-2007
Hauptverfasser:	Zhao, Shaoyu, Wang, Yufei, Qu, Hongwei, Liu, Yun, Zhou, Xuyan, Liu, Anjin, Zheng, Wanhua
Format:	Artikel
Sprache:	eng
Schlagworte:	Laser beams Laser modes low vertical divergence Measurement by laser beam Optical device fabrication Optical waveguides ridge width Ridge-waveguide lasers Semiconductor lasers single transverse mode Waveguide lasers
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Beschreibung
Zusammenfassung:	We report recent developments on 980-nm single-transverse-mode ridge-waveguide (RW) lasers with high efficiency and low-vertical divergence. RW lasers fabricated with 7-μm-wide ridge and 3-mm-long cavity achieve 2-W optical power, 59% maximum power conversion efficiency, as well as a beam divergence of 7.2° in lateral and 10.3° in vertical under 1.5-A injection current. The lateral beam quality factors M 2 are below 1.7 up to 2-W output power.
ISSN:	1041-1135 1941-0174
DOI:	10.1109/LPT.2017.2758904