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External-cavity birefringence feedback effects of microchip Nd:YAG laser and its application in angle measurement

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Chinese Physics B 2009年第8期18卷 3438-3443页

作者：任成谈宜东张书练 State Key Laboratory of Precision Measurement Technology and Instruments Department of Precision Instruments & MechanologyTsinghua University

External-cavity birefringence feedback effects of the microchip Nd：YAG laser are presented. When a birefringence element is placed in the external feedback cavity of the laser, two orthogonally polarized laser beams with a phase difference are output. The phase difference is twice as large as the phase retardation in the external cavity along the two orthogonal directions. The variable extra-cavity birefringence, caused by rotation of the external-cavity birefringenee element, results in tunable phase difference between the two orthogonally polarized beams. This means that the roll angle information has been translated to phase difference of two output laser beams. A theoretical analysis based on the Fabry-Perot cavity equivalent model and refractive index ellipsoid is presented, which is in good agreement with the experimental results. This phenomenon has potential applications for roll angle measurement.

关键词： microchip laser external-cavity birefringence feedback orthogonally polarized lasers angle measurement

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Diode-Pumped Passive Q-Switched 946 nm Nd：YAG laser with a GaAs Saturable Absorber

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Chinese Physics Letters 2006年第3期23卷 619-621页

作者：王素梅张秋琳张玲张春雨张东香冯宝华张治国 Laboratory of Optical Physics Institute of Physics~ Chinese Academy of Sciences PO Box 603 Beijing 100080 Physics and Technology College Hebei University Baoding 071002

We report, for the first time to our knowledge, a diode-pumped passive Q-switched 946nm Nd：YAG laser by using a GaAs as saturable absorber. The maximum average output power is 1.24 W at an incident pump power of 15 W, corresponding to a slope efficiency of 10%. laser pulses with pulse duration of 70ns and repetition rate of 330 kHz are generated.

关键词： AVERAGE OUTPUT POWER SOLID-STATE laserS microchip laser COUPLER

LD pumped Nd: YAG microchip lasers

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Chinese Journal of lasers 1993年第4期 3-8页

作者： Zhenguo Shan, Xiaohua Shen, Zuliang Fu, Guosong Huang,Yuzheng Tu, Su Yin, Liqing Shen, Fuzheng Zhou(Shanghai Institute of Optics & Fine Mechanics(SIOM) ,Academia Sinica,P.O.Box 800 - 216,Shanghai 201800,China)

A new experimental result obtained for the first time about LD pumped Nd: YAG microchip lasers in China is presented. The output power reached 62.5mW, when the input power was 340mW. The optical efficiency was 18%. Th... 详细信息

关键词： LD pump microchip laser

DIODER-PUMPED SELF-Q-SWITCHED Cr4+,Nd3+:YAG laser WITH AMPLIFIER

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Journal of Zhejiang University-Science A(Applied Physics & Engineering) 2001年第4期 2-6页

作者：陈军朱琦

This paper reports results of study on self-Q-switched Cr\+\{4+\},Nd\+\{3+\}:YAG microchip lasers at \{1.064\} μm using a quasi-monolithic setup. Pulses with 6 to 60 ns wide (FWHM) and TEM00 mode produced under cw pumping with repetition rates ranging from 1.5 kHz to 23 kHz. Pulsed pumping yielded output pulses with repetition rates from 1Hz to several kHz and excellent pulse stability. A pulsed pumped microchip oscillator and flash lamp pumped amplifiers were used to set up a MOPA(Master Oscillator and Power Amplifier) system generating 225 kW pulses with 8 ns width.

关键词： microchip laser Cr\+\{4+\} Nd\+\{3+\}:YAG MOPA oscillator amplifier

Passively Q-switched Nd:GdVO4 laser based on carbon-doped boron nitride

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Passively Q-switched Nd:GdVO4 laser based on carbon-doped bo...