Abstract
An optical output power exceeding 210 mW has been achieved using 1.625-μm strained multiple quantum well lasers at a forward current of 800 mA under pulsed operation. We introduced tensile-strained barrier layers to increase internal quantum efficiency. High quantum efficiency is attributed to improved of hole injection efficiency and suppressed electron overflow from wells. The 1.625-μm high-power lasers are expected to be applied to optical time-domain reflectometers, which enable regular communication light to be used.
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Munakata, T., Kashima, Y. & Matoba, A. 1.625-μm high-power strained multiple quantum well lasers for optical time-domain reflectometers. Optical Review 4, A72–A74 (1997). https://doi.org/10.1007/BF02935996
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DOI: https://doi.org/10.1007/BF02935996