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Electro-optic birefringence dual-cavity dual-frequency nd:yag laser and frequency difference tuning method

A YAG laser and birefringence technology, applied in the field of lasers, can solve the problems of complex tuning method and small frequency difference tuning range, and achieve the effect of simple tuning method, large tuning range and easy control.

Active Publication Date: 2017-11-28
XIAN UNIV OF TECH
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  • Application Information

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Problems solved by technology

[0006] The purpose of the present invention is to provide an electro-optical birefringent dual-cavity dual-frequency Nd:YAG laser, which solves the technical problems of small frequency difference tuning range and complicated tuning methods in the prior art

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  • Electro-optic birefringence dual-cavity dual-frequency nd:yag laser and frequency difference tuning method
  • Electro-optic birefringence dual-cavity dual-frequency nd:yag laser and frequency difference tuning method
  • Electro-optic birefringence dual-cavity dual-frequency nd:yag laser and frequency difference tuning method

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Embodiment Construction

[0021] The structure of the electro-optic birefringence dual-cavity dual-frequency Nd of the present invention: YAG laser, as figure 1 As shown, it includes a semiconductor laser LD1, a self-focusing lens 2, a Nd:YAG laser crystal 3, a first polarization beam splitter prism 4, a first electro-optical birefringence output coupling mirror 5, a second electro-optic birefringence output coupling mirror 6, and a first reflection Mirror 7, second mirror 8, second polarization beam splitter prism 9, voltage source I10 and voltage source II11. Semiconductor laser LD1 is used to emit the light wave of 808nm, self-focusing lens 2, Nd:YAG laser crystal 3, the first polarizing beam splitting prism 4 are arranged on the optical axis of this light wave successively, self-focusing lens 2 and the first polarizing beam splitting prism 4 respectively Located on both sides of the Nd:YAG laser crystal 3, the spherical end of the Nd:YAG laser crystal 3 faces the self-focusing lens 2, and the self-...

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Abstract

The invention discloses an electro-optical double-refraction double-cavity double-frequency Nd:YAG laser device and a frequency difference tuning method. The electro-optical double-refraction double-cavity double-frequency Nd:YAG laser device comprises a semiconductor laser device LD, a self-focusing lens, a Nd:YAG laser crystal, a first polarized beam splitter prism, a first electro-optical double-refraction output coupling mirror, a second electro-optical double-refraction output coupling mirror, a first reflecting mirror, a second reflecting mirror, a second polarized beam splitter prism, a voltage source I and a voltage source II, the first electro-optical double-refraction output coupling mirror is connected with the voltage source I through a lead, and the second electro-optical double-refraction output coupling mirror is connected with the voltage source II through a lead. Tuning of 1064-nm double-frequency laser frequency difference can be realized by only adjusting voltage of the voltage source I and the voltage source II, frequency difference tuning range is 0-150GHz, and the frequency tuning method is simple and easy to control. In addition, the large-frequency-difference tuning double-frequency laser device is simple in structure and few in needed component.

Description

technical field [0001] The invention belongs to the technical field of lasers, and in particular relates to an electro-optic birefringence double-cavity double-frequency Nd:YAG laser, and also relates to a method for frequency difference tuning by using the above-mentioned laser. Background technique [0002] At present, the research focus and development mainstream of dual-frequency lasers at home and abroad are to use some physical effects, such as Zeeman effect, photoelastic effect, electro-optic and thermo-optic effects, to make single longitudinal mode The laser splits to obtain simultaneous oscillation output of orthogonally polarized dual-frequency lasers. This single-axis birefringent dual-frequency laser has the advantages of small size, simple structure, convenient tuning, and easy integration. The method is complicated. [0003] For example, the State Key Laboratory of Precision Testing Technology and Instruments of Tsinghua University in China has carried out r...

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H01S3/16H01S3/10
Inventor 邢俊红焦明星
Owner XIAN UNIV OF TECH
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