نتایج جستجو برای: cr4 yag saturable absorber

تعداد نتایج: 14993  

Journal: :Optics letters 2013
R C Botha H J Strauss C Bollig W Koen O Collett N V Kuleshov M J D Esser W L Combrinck H M von Bergmann

A 1314 nm Nd:YLF laser was designed and operated both CW and passively Q-switched. Maximum CW output of 10.4 W resulted from 45.2 W of incident pump power. Passive Q-switching was obtained by inserting a V:YAG saturable absorber in the cavity. The oscillator delivered a maximum of 825 μJ energy per pulse, with a pulse duration of 135 ns at a pulse repetition frequency of 6.3 kHz, effectively de...

Journal: :Optics letters 1991
J Feldmann J Sacher E Göbel

We demonstrate the application of a type II Al(x)Ga((1-x))As/AlAs multiple quantum well as a fast saturable absorber in a hybridly mode-locked dye laser. Type II multiple quantum wells are promising for this application because of the fast recovery of the saturated absorption with picosecond or even subpicosecond time constants. We obtain almost transform-limited pulses as short as 0.9 psec for...

Journal: :Optics letters 1994
Y F Chou C H Lee J Wang

Using an SF6 glass plate as the intracavity Kerr medium and a double-prism pair for dispersion compensation, we developed a femtosecond transform-limited passively mode-locked dye laser. Self-starting mode locking is achieved with a dilute intracavity TCVEBI saturable-absorber jet. Within a 50% power drop the tuning range is 577-606 nm. Pulse characteristics of the laser agree with theoretical ...

Journal: :Applied optics 2007
Y P Huang H C Liang J Y Huang K W Su A Li Y F Chen K F Huang

InGaAs quantum wells and a Bragg mirror structure are grown on a GaAs substrate to simultaneously serve as a low-loss saturable absorber and an output coupler for highly efficient Q switching of a diode-pumped Nd:YAG laser operating at 946 nm. With an incident pump power of 9.2 W, the laser produces pulses of 38 ns duration with average pulse energy of as much as 20 microJ at a pulse repetition...

Journal: :Optics letters 2015
S Keyvaninia S Uvin M Tassaert Z Wang X Fu S Latkowski J Marien L Thomassen F Lelarge G Duan G Lepage P Verheyen J Van Campenhout E Bente G Roelkens

An anti-colliding pulse-type III-V-on-silicon passively mode-locked laser is presented for the first time based on a III-V-on-silicon distributed Bragg reflector as outcoupling mirror implemented partially underneath the III-V saturable absorber. Passive mode-locking at 4.83 GHz repetition rate generating 3 ps pulses is demonstrated. The generated fundamental RF tone shows a 1.7 kHz 3 dB linewi...

Journal: :Optics letters 2009
E J R Kelleher J C Travers E P Ippen Z Sun A C Ferrari S V Popov J R Taylor

We evaluate the shape and chirp of nanosecond pulses from a fiber laser passively mode locked with a nanotube-based saturable absorber by using a synchronously scanning streak camera and a monochromator to directly measure the pulse spectrogram. We show that the stable sech(2) output pulse possesses a predominantly linear chirp, with a residual quartic phase and low noise. Comparison with analy...

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