Title :
High-performance 980-nm ridge waveguide lasers with a nearly circular beam
Author :
Yang, Guowen ; Smith, Gary M. ; Davis, Monica K. ; Kussmaul, Andreas ; Loeber, David A S ; Hu, Martin H. ; Nguyen, Hong-Ky ; Zah, Chung-en ; Bhat, Rajaram
Author_Institution :
Corning Lasertron Inc., Bedford, MA, USA
fDate :
4/1/2004 12:00:00 AM
Abstract :
We report high-performance 980-nm ridge waveguide quantum-well lasers with extremely low vertical beam divergence of 13°. A very small aspect ratio of 1.6 is obtained at high operating power of 900 mW. In addition to the more circular beam, low threshold, high efficiency, high characteristic temperature, and high output power of over 1.18 W are achieved. The fiber coupled output power can be as high as 680 mW with fiber Bragg grating stabilization. Excellent wavelength and power stability are also demonstrated.
Keywords :
Bragg gratings; integrated optics; laser beams; laser stability; laser variables measurement; optical fabrication; optical waveguide theory; quantum well lasers; ridge waveguides; semiconductor quantum wells; waveguide lasers; 900 mW; 980 nm; diode lasers; fiber Bragg grating stabilization; fiber coupled output power; high-performance ridge waveguide lasers; low vertical beam divergence; nearly circular beam; power stability; quantum-well lasers; semiconductor lasers; wavelength stability; Fiber lasers; Laser beams; Optical design; Optical materials; Optical waveguides; Power generation; Quantum well lasers; Stability; Temperature; Waveguide lasers;
Journal_Title :
Photonics Technology Letters, IEEE
DOI :
10.1109/LPT.2004.824662
