The Experts below are selected from a list of 279 Experts worldwide ranked by ideXlab platform
Y.z. Wang - One of the best experts on this subject based on the ideXlab platform.
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2041 3 nm 2054 6 nm simultaneous dual wavelength single Longitudinal Mode tm ho yvo4 microchip laser
Laser Physics, 2010Co-Authors: C H Zhang, Y L Ju, Guibai Li, Q Wang, Y.z. WangAbstract:We report a single-Longitudinal-Mode CW diode-pumped Tm, Ho: YVO4 microchip laser emitting at both 2041.3 and 2054.6 nm. At each wavelength, the laser has a single Longitudinal Mode. The total single-Longitudinal-Mode output power reaches 185 mW with 20.4% optical conversion efficiency at 905 mW incident pump power.
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single Longitudinal Mode and continuously tunable frequency tm ho ylf laser with two solid etalons
Laser Physics Letters, 2010Co-Authors: X L Zhang, Y L Ju, L Li, Y.z. WangAbstract:In this paper we report on a laser diode end-pumped single Longitudinal Mode (SLM) and continuously tunable frequency Tm,Ho:YLF laser with high beam quality at room temperature. The maximal output power of single Longitudinal Mode is as high as 118 mW by using two uncoated fused silica etalons, which are respectively 0.1 mm and 1 mm thick. Furthermore, the output frequency of the laser can be tuned continuously over 1 GHz by only angle tuning the 1 mm thick etalon. The single Longitudinal Mode laser can be used as a seed laser for coherent wind measurements and differential absorption lidar systems.
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single Longitudinal Mode and optical bistability tm ho ylf lasers at room temperature
Laser Physics Letters, 2009Co-Authors: Xinlu Zhang, Y L Ju, Bo Jiang, Li Li, Y.z. WangAbstract:In this paper we report on laser diode end-pumped single Longitudinal Mode and optical bistability Tm,Ho:YLF lasers at room temperature. The maximal output power of single Longitudinal Mode can reach 106 mW by using only a 250 μm thick solid etalon. The single Longitudinal Mode laser can be used as a seed laser for laser lidar systems. Furthermore, for the first time, the phenomenon of low threshold optical bistability of Tm,Ho:YLF laser at room temperature is observed.
Yuezhu Wang - One of the best experts on this subject based on the ideXlab platform.
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High power single-Longitudinal-Mode Ho3+:YVO4 unidirectional ring laser
Chinese Optics Letters, 2017Co-Authors: Jing Wu, Youlun Ju, Xiaoming Duan, Zhenguo Zhang, And Yuezhu Wang, Yuezhu WangAbstract:We demonstrate a single-Longitudinal-Mode Ho3+:YVO4 unidirectional ring laser based on the acousto-optic effect, utilizing the features of the acousto-optical Q switch and half-wave plate to achieve unidirectional operation. The maximum power achieved in the single-Longitudinal-Mode at 2053.9 nm is 941 mW when the absorbed power is set as 4.4 W, yielding a nearly 50% slope efficiency. The M2 factor is 1.1. The results show that such a technique offers a potentially promising new method for achieving a high power and narrow linewidth 2 μm single-Longitudinal-Mode laser.
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Tm-fiber pumped single-Longitudinal-Mode Ho:LuVO4 laser
Optical and Quantum Electronics, 2016Co-Authors: Liwei Xu, Youlun Ju, Jing Wu, Lin Ju, Ying-yi Li, Zhenguo Zhang, Yuezhu WangAbstract:We demonstrated a Tm-fiber pumped single-Longitudinal-Mode Ho:LuVO4 laser with intra-cavity Fabry–Perot etalons. By the use of an output coupler with a transmission of 2%, the Ho:LuVO4 laser generated a continuous-wave output power of 609 mW at 2074.72 nm. By inserting the 1- and 6-mm etalons into the resonator in order, we obtained a single-Longitudinal-Mode laser with a wavelength of 2074.91 nm, the maximum output power of which is 163 mW with the pump power of 14 W, corresponding to a slope efficiency of 2.3%. To the best of our knowledge, the intra-cavity etalons Ho:LuVO4 laser operating at single-Longitudinal-Mode is reported for the first time.
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A tunable and single-Longitudinal-Mode Ho:YLF laser
Infrared Physics & Technology, 2016Co-Authors: Jing Wu, Liwei Xu, Lin Ju, Zijing Zhang, Yuezhu WangAbstract:Abstract A 1.94 μm Tm-doped fiber laser pumped tunable single-Longitudinal-Mode Ho:YLF laser with double etalons was reported for the first time. The maximum single-Longitudinal-Mode output power of 345 mW at 2051.6 nm was achieved at the absorbed pump power of 11.9 W, corresponding to a slope efficiency of 5.5% and an optical conversion efficiency of 2.9%. By regulating the angle of the F–P etalons, the output wavelength of the laser can be tuned from 2051.6 nm to 2063.3 nm. The single-longitude-Mode Ho:YLF laser operating at 2 μm can be used as the seed laser source of coherent Doppler lidar, differential absorption lidar and so on.
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Development of a Single-Longitudinal-Mode Ho:YAG Laser Based on Corner Cube
Chinese Physics Letters, 2016Co-Authors: Jing Wu, Youlun Ju, Zhenguo Zhang, Yuezhu WangAbstract:We present a Tm-doped fiber laser pumped Fabry–Perot etalons Ho:YAG laser based on a corner cube. A maximum single-Longitudinal-Mode and fundamental transverse Mode output power of 478 mW at the wavelength of 2091.06 nm is achieved with a pump power of 16.3 W, corresponding to an optical-to-optical efficiency of 2.9% and a slope efficiency of 7.9%. The single-Longitudinal-Mode and fundamental transverse Mode are less sensitive to the rotating of the corner cube. The results indicate the potential impact of a single-Longitudinal-Mode Ho:YAG laser with corner cube geometry to improve the anti-maladjustment stability.
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Resonantly pumped single-Longitudinal-Mode Ho:YAG laser
Applied Physics B, 2016Co-Authors: Youlun Ju, Jing Wu, Xiaoming Duan, Ying-jie Shen, Yuezhu WangAbstract:We demonstrated a 1.9-μm-pumped high-efficiency single-Longitudinal-Mode Ho:YAG laser with intra-cavity etalons for the first time. By inserting the F–P etalons into the laser cavity, single-Longitudinal-Mode Ho:YAG lasing was achieved at a wavelength of 2081.2 nm. The maximum single-Longitudinal-Mode output power of 309 mW was obtained with absorbed pump power of 4.97 W, corresponding to a slope efficiency of 12.77 %. The oscillating wavelength can be tuned (from 2077 to 2081 nm), and single-Longitudinal-Mode laser is achieved at each wavelength. The M2 factors of the single-Longitudinal-Mode Ho:YAG laser in the x and y directions were 1.18 and 1.2, respectively.
Kenneth K Y Wong - One of the best experts on this subject based on the ideXlab platform.
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Widely-tunable continuous-wave single-Longitudinal-Mode fiber optical parametric oscillator
2011 Optical Fiber Communication Conference and Exposition and the National Fiber Optic Engineers Conference, 2011Co-Authors: Yue Zhou, P. C. Chui, Kenneth K Y WongAbstract:A continuous-wave fiber optical parametric oscillator with a tunability of 114 nm, a wavelength span of 143 nm and single-Longitudinal-Mode oscillation is demonstrated. The short-term linewidth of the output is as narrow as 1.5 kHz.
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A Tunable $S$ -Plus $L$ -Band Continuous-Wave Single-Longitudinal-Mode Fiber-Optical Parametric Oscillator
IEEE Photonics Technology Letters, 2011Co-Authors: Yue Zhou, P. C. Chui, Chi Zhang, Kenneth K Y WongAbstract:We demonstrate an all-fiber continuous-wave single-Longitudinal-Mode fiber-optical parametric oscillator. The output tuning range extends from 1487 to 1541 nm and from 1570 to 1630 nm, which covers the S- and L-bands. Single-Longitudinal-Mode oscillation with a side-Mode suppression ratio greater than 43 dB is achieved while the linewidth of the output is 1.5 kHz. This scheme has the potential to be a useful source in wavelength-division-multiplexing networks and optical communications in the nonconventional wavelength bands.
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tunable single Longitudinal Mode fiber optical parametric oscillator
Optics Letters, 2010Co-Authors: Sigang Yang, Kim K Y Cheung, Yue Zhou, Kenneth K Y WongAbstract:A tunable single-Longitudinal-Mode (SLM) fiber optical parametric oscillator (FOPO) is proposed and demonstrated experimentally. A sub-ring cavity with a short cavity length is used to suppress the Longitudinal Modes and broaden the Longitudinal Mode spacing. A fiber loop mirror, consisted of an unpumped erbium-doped fiber, acts as an autotracking filter for providing fine Mode restriction and ensuring the single-frequency operation. The measurement based on a homodyne method shows that the FOPO provides the SLM output. Furthermore the SLM FOPO can be tunable over 14 nm for each of the signal and the idler, which is limited only by the gain bandwidth of the fiber optical parametric amplifier.
Y L Ju - One of the best experts on this subject based on the ideXlab platform.
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2041 3 nm 2054 6 nm simultaneous dual wavelength single Longitudinal Mode tm ho yvo4 microchip laser
Laser Physics, 2010Co-Authors: C H Zhang, Y L Ju, Guibai Li, Q Wang, Y.z. WangAbstract:We report a single-Longitudinal-Mode CW diode-pumped Tm, Ho: YVO4 microchip laser emitting at both 2041.3 and 2054.6 nm. At each wavelength, the laser has a single Longitudinal Mode. The total single-Longitudinal-Mode output power reaches 185 mW with 20.4% optical conversion efficiency at 905 mW incident pump power.
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single Longitudinal Mode and continuously tunable frequency tm ho ylf laser with two solid etalons
Laser Physics Letters, 2010Co-Authors: X L Zhang, Y L Ju, L Li, Y.z. WangAbstract:In this paper we report on a laser diode end-pumped single Longitudinal Mode (SLM) and continuously tunable frequency Tm,Ho:YLF laser with high beam quality at room temperature. The maximal output power of single Longitudinal Mode is as high as 118 mW by using two uncoated fused silica etalons, which are respectively 0.1 mm and 1 mm thick. Furthermore, the output frequency of the laser can be tuned continuously over 1 GHz by only angle tuning the 1 mm thick etalon. The single Longitudinal Mode laser can be used as a seed laser for coherent wind measurements and differential absorption lidar systems.
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single Longitudinal Mode and optical bistability tm ho ylf lasers at room temperature
Laser Physics Letters, 2009Co-Authors: Xinlu Zhang, Y L Ju, Bo Jiang, Li Li, Y.z. WangAbstract:In this paper we report on laser diode end-pumped single Longitudinal Mode and optical bistability Tm,Ho:YLF lasers at room temperature. The maximal output power of single Longitudinal Mode can reach 106 mW by using only a 250 μm thick solid etalon. The single Longitudinal Mode laser can be used as a seed laser for laser lidar systems. Furthermore, for the first time, the phenomenon of low threshold optical bistability of Tm,Ho:YLF laser at room temperature is observed.
Tet Hin Yeap - One of the best experts on this subject based on the ideXlab platform.
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single Longitudinal Mode multiwavelength fiber ring lasers
Optical Fiber Communication Conference, 2004Co-Authors: Tet Hin YeapAbstract:A single-Longitudinal-Mode multiwavelength fiber ring laser is proposed and demonstrated. The single-Longitudinal-Mode operation is realized using a fiber loop mirror with a saturable absorber. The fiber loop mirror acts as a passive self-tracking narrow multiband optical filter. Single-Longitudinal-Mode multiwavelength lasing is generated by using either a Lyot-Sagnac filter or a fiber grating array.
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Single Longitudinal Mode multi-wavelength fiber ring lasers
2004Co-Authors: Tet Hin YeapAbstract:A single Longitudinal Mode multiwavelength fiber ring laser is demonstrated. The single Longitudinal Mode multiwavelength operation is achieved using a fiber loop mirror with a saturable absorber and a Lyot-Sagnac filter or fiber grating array.
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Single-Longitudinal-Mode multiwavelength fiber ring laser
IEEE Photonics Technology Letters, 2004Co-Authors: Tet Hin YeapAbstract:A single-Longitudinal-Mode multiwavelength fiber ring laser is proposed and demonstrated. The single-Longitudinal-Mode operation is realized using a fiber loop mirror with a saturable absorber. The fiber loop mirror acts as a passive self-tracking narrow multiband optical filter. Single-Longitudinal-Mode multiwavelength lasing is generated by using either a Lyot-Sagnac filter or a fiber grating array.
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Single Longitudinal Mode multiwavelength fiber ring lasers
Optical Fiber Communication Conference 2004. OFC 2004, 2004Co-Authors: Tet Hin YeapAbstract:A single Longitudinal Mode multiwavelength fiber ring laser is demonstrated. The single Longitudinal Mode multiwavelength operation is obtained using a fiber loop mirror with a saturable absorber and a Lyot-Sagnac filter or a fiber grating array.
