TY - JOUR
T1 - Nd:YAP 1.34-μm/1.08-μm laser passively mode-locked and Q-switched by V3+:YAG/BDN II saturable absorbers with efficient radiation delivery through a hollow glass waveguide coated with COP/Ag
AU - Jelínková, Helena
AU - Cˇerný, Pavel
AU - Sˇulc, Jan
AU - Jabczyrński, Jan K.
AU - Kopczyński, Krzysztof
AU - Mierczyk, Zygmunt
AU - Miyagi, Mitsunobu
AU - Matsuura, Yuji
AU - Shi, Yi Wei
N1 - Funding Information:
This research has been supported by the Czech Grant Agency, grant No. 102/99/1250, and the Czech Ministry of Education No. 30/2002, as well as a grant by the Ministry of Education, Science, Sports, and Culture of Japan, No. 09044122.
PY - 2002/8
Y1 - 2002/8
N2 - A compact, passively Q-switched and mode-locked Nd:YAP laser in oscillator-amplifier configuration was designed and constructed. Operation wavelength switching (between 1.34 and 1.08 μm) was achieved with a three-mirror cavity and mechanical shutter. For Q switching and mode locking of the 1.34-μm Nd:YAP laser transition, a V3+-doped yttrium aluminum garnet (YAG) saturable absorber was employed. The optimal performance was found after variation of the resonator length (40 to 100 cm) and of the absorber initial transmission (52% to 89%). The duration of a single pulse in a train was around 1 ns. The saturation intensity of the V3+:YAG absorber was determined to be 10 MW/cm2. A BDN II polymer thin-film saturable absorber was used for Q switching the 1.08-μm laser transition. After amplification, the maximum output energy reached was 27 mJ (train of mode-locked pulses at 1.34 μm) or 94 mJ (Q-switched pulse at 1.08 μm). The output laser radiation was delivered by means of a hollow glass waveguide coated with cyclic olefin polymer and Ag, with 95% and 80% efficiencies for 1.34 and 1.08 μm, respectively.
AB - A compact, passively Q-switched and mode-locked Nd:YAP laser in oscillator-amplifier configuration was designed and constructed. Operation wavelength switching (between 1.34 and 1.08 μm) was achieved with a three-mirror cavity and mechanical shutter. For Q switching and mode locking of the 1.34-μm Nd:YAP laser transition, a V3+-doped yttrium aluminum garnet (YAG) saturable absorber was employed. The optimal performance was found after variation of the resonator length (40 to 100 cm) and of the absorber initial transmission (52% to 89%). The duration of a single pulse in a train was around 1 ns. The saturation intensity of the V3+:YAG absorber was determined to be 10 MW/cm2. A BDN II polymer thin-film saturable absorber was used for Q switching the 1.08-μm laser transition. After amplification, the maximum output energy reached was 27 mJ (train of mode-locked pulses at 1.34 μm) or 94 mJ (Q-switched pulse at 1.08 μm). The output laser radiation was delivered by means of a hollow glass waveguide coated with cyclic olefin polymer and Ag, with 95% and 80% efficiencies for 1.34 and 1.08 μm, respectively.
KW - BDN II saturable absorber
KW - Nd:YAP laser
KW - Passive Q switch
KW - Passive mode locking
KW - V:YAG saturable absorber
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U2 - 10.1117/1.1488161
DO - 10.1117/1.1488161
M3 - Article
AN - SCOPUS:0036672062
VL - 41
SP - 1976
EP - 1982
JO - SPIE J
JF - SPIE J
SN - 0091-3286
IS - 8
ER -