A single-mode diode laser is injected into a high-power broad-area diode laser to produce single-mode operation with 80 mW in a 0.5°-wide far-field lobe. Spectrally resolved near- and far-field measurements suggest a simple Fabry–Perot amplifier model that qualitatively explains the observed injection and beam-steering behavior in these devices as well as gain-guided multiple-stripe arrays. This model provides criteria for the optimization of injection performance.
© 1987 Optical Society of America
Original Manuscript: March 4, 1987
Manuscript Accepted: May 5, 1987
Published: August 1, 1987
G. L. Abbas, J. G. Fujimoto, S. Yang, and V. W. S. Chan, "Injection behavior of high-power broad-area diode lasers," Opt. Lett. 12, 605-607 (1987)