The Experts below are selected from a list of 309 Experts worldwide ranked by ideXlab platform
Biao Wang - One of the best experts on this subject based on the ideXlab platform.
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Joint Thermal Effects of VBG and Nonlinear Crystal in a Singly Resonant OPO
IEEE Photonics Technology Letters, 2016Co-Authors: Xionghua Zheng, Baofu Zhang, Jing Guo, Zhongxing Jiao, Biao WangAbstract:A continuous-wave singly resonant optical parametric oscillator employing a volume Bragg grating as one of the end mirrors is demonstrated. Due to the high intracavity power, the minute absorption of the grating leads to the thermal induced surface deformation and reflection peak shift. In this letter, the former effect is confirmed to be a cause of beam quality degradation of the resonant signal, while the latter, together with the thermal effects of the Nonlinear Crystal, leads to unconventional behaviors of power and stability. To the best of our knowledge, the joint effects of the grating and the Nonlinear Crystal are studied for the first time in details by changing the thermal effects of grating in varied strengths.
Xionghua Zheng - One of the best experts on this subject based on the ideXlab platform.
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Joint Thermal Effects of VBG and Nonlinear Crystal in a Singly Resonant OPO
IEEE Photonics Technology Letters, 2016Co-Authors: Xionghua Zheng, Baofu Zhang, Jing Guo, Zhongxing Jiao, Biao WangAbstract:A continuous-wave singly resonant optical parametric oscillator employing a volume Bragg grating as one of the end mirrors is demonstrated. Due to the high intracavity power, the minute absorption of the grating leads to the thermal induced surface deformation and reflection peak shift. In this letter, the former effect is confirmed to be a cause of beam quality degradation of the resonant signal, while the latter, together with the thermal effects of the Nonlinear Crystal, leads to unconventional behaviors of power and stability. To the best of our knowledge, the joint effects of the grating and the Nonlinear Crystal are studied for the first time in details by changing the thermal effects of grating in varied strengths.
Alexander A. Vlasov - One of the best experts on this subject based on the ideXlab platform.
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Powerful green Yb-doped fiber laser
International Conference on Lasers Applications and Technologies 2007: Advanced Lasers and Systems, 2007Co-Authors: V. A. Akulov, Dmitry V. Churkin, Sergei I. Kablukov, Sergey A. Babin, Alexander A. VlasovAbstract:A powerful Yb-doped fiber laser with intra-cavity frequency doubling in KTP Nonlinear Crystal has been realized. Green output power of 1 W level has been achieved at ~ 11W of multimode laser diode pump power.
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Tunable green Yb-doped fiber laser
Advanced Solid-State Photonics, 2007Co-Authors: V. A. Akulov, Denis M. Afanasiev, Dmitry V. Churkin, Sergei I. Kablukov, M. A. Rybakov, Sergey A. Babin, Alexander A. VlasovAbstract:A tunable Yb-doped fiber laser with intracavity frequency doubling in KTP Nonlinear Crystal has been realized, 0.4 W green output power with 540-548 nm tuning has been achieved.
Lauri Halonen - One of the best experts on this subject based on the ideXlab platform.
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singly resonant cw opo with simple wavelength tuning
Optics Express, 2008Co-Authors: Markku Vainio, Jari Peltola, Stefan Persijn, F J M Harren, Lauri HalonenAbstract:A singly resonant continuous-wave optical parametric oscillator (cw OPO) is described. The OPO contains no intracavity etalon, which makes its wavelength tuning simple and straightforward, including only temperature tuning of the Nonlinear Crystal and wavelength tuning of the pump laser. The OPO provides watt-level output in the mid-infrared region and operates reliably without mode hops for several hours.
Katsumi Midorikawa - One of the best experts on this subject based on the ideXlab platform.
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broadband sum frequency mixing using noncollinear angularly dispersed geometry for indirect phase control of sub 20 femtosecond uv pulses
Optics Express, 2003Co-Authors: Yasuo Nabekawa, Katsumi MidorikawaAbstract:We report on a novel scheme for generating a broad spectrum in the UV region. This scheme enables us to control the phase of the UV pulse through a frequency-mixing process in a Nonlinear Crystal. For group velocity matching, it is essential that a monochromatic beam should be sum-frequency mixed with an angularly dispersed beam having a broad spectrum in noncollinear geometry. We found analytically unique solutions for a noncollinear angle, for an angular dispersion of the broadband input beam, and for an angle of the beam from the optical axis in a Nonlinear Crystal, with the condition that there is no angular dispersion in the output beam. Based on the analysis of this scheme, we obtained UV pulses with a sufficiently broad spectrum for obtaining a sub-20-fs pulsewidths in the experiment. The improvement of conversion efficiency and compensation of chirp are also discussed.
