title: Self-starting mode locking by multi-spatial-mode active waveguiding.
abstract: We demonstrate a novel principle of self-starting mode locking in a compact semiconductor laser diode, where the needed saturable loss is provided by spatial effects resulting from multi-spatial-mode active waveguiding. The demonstrated device operates over a 1.54 microm wavelength range and has a repetition rate of 47 GHz. The pulse width is below 5 ps, and the average power coupled to the cleaved single-mode fiber is nearly 0 dBm.
authors.affiliation: Data/Optical Networks Research, Bell Laboratories, Lucent Technologies, Inc. 791 Holmdel-Keyport Road, Holmdel, New Jersey 07733, USA. wgyang@lucent.com
authors.forename: Weiguo
authors.initials: W
authors.lastname: Yang