STABLE OPERATION OF SELF-SUSTAINED PULSATION IN 650-NM-BAND ALGAINP VISIBLE LASERS WITH HIGHLY DOPED SATURABLE ABSORBING LAYER

Self-sustained pulsating 650-nm-band AlGaInP visible lasers were fabri cated by adopting a new structure, which has a highly doped saturable absorbing (HDSA) layer. Since the doping level and the thickness of th e HDSA layer could be controlled accurately by using metalorganic vapo r phase epitaxy growth technique, a stable operation of self-sustained pulsation up to 60 degrees C was obtained. The lasers operated over 1 350 h under the average output power of 5 mW at 60 degrees C. The rela tive intensity noise values were below -136 dB/Hz in the temperature r anging from 20-60 degrees C and remained unchanged after life test. (C ) 1996 American Institute of Physics.