25 July 1989 Low-Cost DH And Quantum Well Laser Array Development
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We report on the initial results of a program aimed at developing low-cost diode laser arrays for use as solid-state laser pumps. Utilizing the Metal-Organic Chemical Vapor Deposition (MOCVD) technology, we have demonstrated excellent run-to-run reproducibility in emission wavelength, threshold current density and quantum effi-ciency. For four separate MOCVD growth runs involving a total of twenty 50 mm diameter wafers, we measured DH laser emission wave-lengths in the range of 811-813 nm. For this first experimental series, we achieved Jth values of approximately 1310 Amps/cm2 for broad area, unthinned devices from our growth runs. Differential quantum efficiencies of between 41% and 47% were measured on the non-facet-coated devices from all four runs. Single quantum well, separate confinement heterostructure lasers fabricated from wafers grown in the same MOCVD reactor exhibited near single-mode emission, with Jth values of approximately 300 Amps/cm2. Photolumines-cence data confirm quantum well widths of 80 Å and 150 Å for two different MOCVD growth runs.
© (1989) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.
Kurt J. Linden, Kurt J. Linden, Leo M. Geoffroy, Leo M. Geoffroy, Scott F. Pesarcik, Scott F. Pesarcik, Carl J. Magee, Carl J. Magee, } "Low-Cost DH And Quantum Well Laser Array Development", Proc. SPIE 1062, Laser Applications in Meteorology and Earth and Atmospheric Remote Sensing, (25 July 1989); doi: 10.1117/12.951863; https://doi.org/10.1117/12.951863


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