title: Passive mode-locking of a Nd:YAG ceramic laser by optical interference modulation in a GaAs wafer.
abstract: We demonstrated passive mode-locking of a Nd:YAG ceramic laser by optical interference modulation in a GaAs wafer. The combined effect of Kerr nonlinearity and optical interference in GaAs acted as an artificial saturable absorber and resulted in mode-locking. Maximum average output power of the mode-locked laser was as high as 2.84W, with a slope efficiency of 48%. The mode-locked pulse duration was as short as 4.1 ps. To our knowledge, this is the shortest pulse obtained from all Nd:YAG lasers without dispersion compensation.
authors.forename: Guoqiang
authors.initials: G
authors.lastname: Xie
authors.forename: Dingyuan
authors.initials: D
authors.lastname: Tang
authors.forename: Jian
authors.initials: J
authors.lastname: Kong
authors.forename: Liejia
authors.initials: L
authors.lastname: Qian