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High-power 1.625-μm strained multiple-quantum-well lasers as a light source for optical time-domain reflectometers

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Abstract

An optical output power of 160 mW has been successfully achieved in 1.625-μm strained multiple-quantum-well lasers at a forward current of 800 mA under pulsed operation. Such a high output power has been achieved by optimizing the separated confinement heterostructure layer thickness. The operating life of high-power 1.625-μm lasers has been estimated from the results of accelerated ageing at an ambient temperature of 45°C and 500 mA under continuous-wave operation. No significant change in the optical output power was observed up to 2000 hours. The mean time to failure is estimated to be about 4.5×104 hours at 500 mA and 45°C.

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Authors and Affiliations

  1. Optical Device Division, OKI Electric Industry Co., Ltd, 550-1 Higashiasakawa, 193, Hachioji, Tokyo, Japan

    T. Munakata, Y. Kashima, S. Kusumoto, A. Matoba & H. Takano

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  1. T. Munakata
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  2. Y. Kashima
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  3. S. Kusumoto
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  4. A. Matoba
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  5. H. Takano
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Munakata, T., Kashima, Y., Kusumoto, S. et al. High-power 1.625-μm strained multiple-quantum-well lasers as a light source for optical time-domain reflectometers. Opt Quant Electron 28, 495–502 (1996). https://doi.org/10.1007/BF00943617

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  • DOI: https://doi.org/10.1007/BF00943617

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