1.625-um high-power lasers for OTDR monitoring systems for optical transmission lines

Tsutomu Munakata; Yasumasa Kashima; Shigehiro Kusumoto; Akio Matoba; Hiroshi Takano

doi:10.1117/12.230069

15 January 1996 1.625-um high-power lasers for OTDR monitoring systems for optical transmission lines

Tsutomu Munakata, Yasumasa Kashima, Shigehiro Kusumoto, Akio Matoba, Hiroshi Takano

Proceedings Volume 2610, Laser Diode Chip and Packaging Technology; (1996) https://doi.org/10.1117/12.230069
Event: Photonics East '95, 1995, Philadelphia, PA, United States

Abstract

An optical power of over 160 mW has been successfully achieved using 1.625-micrometer strained multiple quantum well lasers at a forward current of 800 mA in pulsed operation. Such high power is achieved by optimizing the separated confinement heterostructure layer thickness. The operating life of high power 1.625-micrometer lasers has been estimated from the results of accelerated aging at 45 degrees Celsius, and 300 mA and 500 mA under continuous-wave operation. No significant change in optical output power was observed up to 4500 hours. The mean-time-to-failure at driving currents of 300 mA and 500 mA, at an ambient temperature of 45 degrees Celsius, are estimated to be about 4.2 multiplied by 10⁴ hours and 3.5 multiplied by 10⁴ hours, respectively.

Citation Download Citation

Tsutomu Munakata, Yasumasa Kashima, Shigehiro Kusumoto, Akio Matoba, and Hiroshi Takano "1.625-um high-power lasers for OTDR monitoring systems for optical transmission lines", Proc. SPIE 2610, Laser Diode Chip and Packaging Technology, (15 January 1996); https://doi.org/10.1117/12.230069

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