Kejian YangSummaryAffiliation: Shandong University Country: China Publications
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Mode-locking of 2 μm Tm,Ho:YAG laser with GaInAs and GaSb-based SESAMsKejian Yang
Department of Physics and Center of Applied Photonics, University of Konstanz, 78457 Konstanz, Germany
Opt Express 21:4311-8. 2013..3 ps at 2091 nm with a maximum output power of 63 mW. We attribute the shorter pulse duration obtained with the GaSb SESAMs to the ultrafast recovery time of the absorption and higher nonlinearity compared to standard GaInAs SESAMs...- Mode-locked Tm,Ho:YAP laser around 2.1 μmK J Yang
Department of Physics and Center of Applied Photonics, University of Konstanz, 78457 Konstanz, Germany
Opt Express 21:1574-80. 2013..4 ps were obtained at 2064.5 nm with a spectral FWHM of 0.5 nm at output powers of 132 mW and a repetition rate around 107 MHz. A maximum output power of 238 mW was obtained at 2130 nm with a pulse duration of 66 ps... - Efficient continuous wave and passively mode-locked Tm-doped crystalline silicate laserK J Yang
Department of Physics and Center of Applied Photonics, University of Konstanz, 78457 Konstanz, Germany
Opt Express 20:18630-5. 2012..2 ps with an average output power of 100 mW are obtained with silicon prisms where used to manage the intracavity dispersion. The shortest pulse duration of about 19.6 ps is obtained with an average output power of 64.5 mW at 1944.3 nm... 
Diode-pumped passively Q-switched and mode-locked Nd:GdVO4 laser at 1.34 microm with V:YAG saturable absorberKejian Yang
State Key Laboratory of Crystal Materials, Shandong University, Jinan, 250100, PR China
Opt Express 16:20176-85. 2008..With the space-dependent rate equations solved numerically, the theoretical calculations reproduce the laser characteristics well...- Passively mode-locked Tm,Ho:YAG laser at 2 microm based on saturable absorption of intersubband transitions in quantum wellsKejian Yang
Department of Physics and Center of Applied Photonics, University of Konstanz, 78457 Konstanz, Germany
Opt Express 18:6537-44. 2010..9 W of the absorbed pump power could last for hours without external interruption and a mode-locked pulse with duration of 60 ps at repetition rate of 106.5 MHz was generated... - Dual-loss-modulated Q-switched and mode-locked YVO(4)/Nd:YVO(4)/KTP green laser with EO and Cr(4+):YAG saturable absorberTao Li
College of Information Science and Engineering, Shandong University, Jinan, Shandong 250100, China
Opt Express 18:10315-22. 2010..1 ns, 360 microJ and 382 kW, respectively, corresponding to the pulse width compression 62%, the pulse energy improvement 10 times and the QML peak power increase 40 times when compared with that of the singly passively QML green laser... - Pulse compression in an electro-optic Q-switched diode-pumped YVO4/Nd:YVO4 laser with a Cr4+:YAG saturable absorberTao Li
School of Information Science and Engineering, Shandong University, Jinan, Shandong 250100, China
Appl Opt 48:2243-8. 2009..The experimental and theoretical results show that the doubly Q-switched laser has the advantages of a shorter pulse width and higher pulse peak power in contrast with a singly Q-switched laser...