242 nm continuous tuning from a GRIN-SC-MQW-BH InGaAsP laser in an extended cavity

Abstract

Multiple quantum well (MQW) buried heterostructure (BH) lasers in the InGaAsP/InP system have been continuously tuned from 1320 nm to 1562 nm in a grating extended cavity. A power output of 45 mW was obtained at 1510 nm and 350 mA continuous current.