Sf. Lim et al., SELF-PULSATING AND BISTABLE VCSEL WITH CONTROLLABLE INTRACAVITY QUANTUM-WELL SATURABLE ABSORBER, Electronics Letters, 33(20), 1997, pp. 1708-1710
The authors report the first demonstration of a VCSEL with GHz-range s
elf-pulsations using a quantum-well saturable absorber. Negative diffe
rential resistance in the saturable absorber was observed, which can l
ead to bistable operation or self-pulsations under a range of user-con
trolled conditions. Self-pulsation frequencies up to 2GHz with an RF l
inewidth <10MHz FWHM were measured.