title: Compact KGd(WO4)2picosecond pulse-train synchronously pumped broadband Raman laser.
abstract: We demonstrate an efficient approach to realizing an extra-cavity, synchronously pumped, stimulated Raman cascaded process under low repetition frequency (1 kHz) pump conditions. We also construct a compact KGd(WO4)2(KGW) crystal picosecond Raman laser that has been configured as the developed method. A pulse-train green laser pumped the corresponding 70 mm long KGW crystal Raman cavity. The pulse train contains six pulses, about 800 ps separated, for every millisecond; thus, it can realize synchronous pumping between pump pulse and the pumped Raman cavity. The investigated system produced a collinear Raman laser output that includes six laser lines covering the 532 to 800 nm spectra. This is the first report on an all-solid-state, high-average-power picosecond collinear multi-wavelength (more than three laser components) laser to our knowledge. This method has never been reported on before in the synchronously pumped stimulated Raman scattering (SRS) realm.
authors.forename: Xiao Qiang
authors.initials: XQ
authors.lastname: Gao
authors.forename: Ming Liang
authors.initials: ML
authors.lastname: Long
authors.forename: Chen
authors.initials: C
authors.lastname: Meng