LONG-TERM RELIABILITY OF AL-FREE INGAASP GAAS (LAMBDA=808 NM) LASERS AT HIGH-POWER HIGH-TEMPERATURE OPERATION/

We report the long-term reliability measurement on uncoated Al-free In GaAsP/GaAs (lambda = 808 nm) lasers at high-power and high-temperature operation. No degradation in laser performance has been observed for over 30 000 h of lifetime testing in any of randomly selected several 100-mu m-wide uncoated lasers operated at 60 degrees C with 1 W contin uous wave output power. This is the:first and the most conclusive evid ence ever reported that directly shows the high long-term reliability of uncoated Al-free lasers. (C) 1997 American Institute of Physics.