1 April 2005 High-power and highly reliable 980-nm lasers with window structure using impurity-free vacancy disordering
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Abstract
High power and reliable 980nm single mode lasers are required for pumping EDFAs and 915, 940, 975nm broad area lasers are demanded for pumping double clad fiber lasers and amplifiers. While we have demonstrated high power lasers by using decoupled confinement heterostructure (DCH) , we employed a window structure due to impurity free vacancy disordering (IFVD.) 980nm single mode lasers showed complete rollover with I=4A(CW). For 12000 hour lifetest at 700mW-40C, no sudden failure was observed. And the average gradual degradation rate was zero. Also the window structure applied to 975nm broad area laser successfully. The degradation rate during 500 hours operation was decreased to zero.
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Yumi Yamada, Yumi Yamada, Yoshikazu Yamada, Yoshikazu Yamada, Tsuyoshi Fujimoto, Tsuyoshi Fujimoto, Kazuomi Uchida, Kazuomi Uchida, } "High-power and highly reliable 980-nm lasers with window structure using impurity-free vacancy disordering", Proc. SPIE 5738, Novel In-Plane Semiconductor Lasers IV, (1 April 2005); doi: 10.1117/12.589962; https://doi.org/10.1117/12.589962
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