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Cascaded stimulated brillouin scattering effect-based wavelength frequency stabilization system

A technology of stimulated Brillouin and scattering effects, applied to the structure/shape of the active medium, lasers, phonon exciters, etc., can solve the problems of single-wavelength fiber laser limitations, limited wavelength and frequency stabilization accuracy, and achieve high precision The effect of stable light wavelength and reasonable design

Active Publication Date: 2018-11-30
TAIYUAN UNIV OF TECH
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Problems solved by technology

[0003] The wavelength and frequency stabilization accuracy of the above scheme depends on the Q value of the resonator, and the Q value is directly related to the cavity length and cavity loss. However, single-wavelength fiber lasers limit the optimization of cavity length and cavity loss, which also limits the wavelength stability. frequency accuracy

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  • Cascaded stimulated brillouin scattering effect-based wavelength frequency stabilization system

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Embodiment Construction

[0013] Specific embodiments of the present invention will be described in detail below in conjunction with the accompanying drawings.

[0014] like figure 1 As shown, the wavelength frequency stabilization system based on the cascaded stimulated Brillouin scattering effect of the present invention includes an adjustable single-frequency laser 1, a phase modulator 2, a signal generator 3, an optical circulator 4, and a multi-wavelength distribution Liyuan erbium-doped fiber laser 5, tunable optical filter 6, photodetector 7, microwave mixer 8, frequency tracking system 9.

[0015] Based on the above-mentioned constituent elements, the constitutional relationship of the present invention is as follows: the output end of the adjustable single-frequency laser 1 is connected with the input end of the phase modulator 2, and the output end of the phase modulator 2 is connected with the first port 41 of the optical circulator 4 , the second port 42 of the optical circulator 4 is conn...

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Abstract

The invention discloses a cascaded stimulated brillouin scattering effect-based wavelength frequency stabilization system, which comprises a tunable single frequency laser (1), a phase modulator (2),a signal generator (3), an optical circulator (4), a multi-wavelength brillouin erbium-doped fiber laser (5), a tunable optical filter (6), a photoelectric detector (7), a microwave mixer (8) and a frequency tracking system (9). A cascaded stimulated brillouin scattering effect is applied to a wavelength frequency stabilization system, and multi-wavelength brillouin laser light generated through the cascaded stimulated brillouin scattering effect is taken as probe light for frequency stabilization, so that high-precision wavelength stabilization is achieved through cooperation with the tunablefilter and the stabilization precision can be improved by 20-50 times. The cascaded stimulated brillouin scattering effect-based wavelength frequency stabilization system is reasonable in design, andhigh-precision optical wavelength stabilization is achieved by adopting the cascaded stimulated brillouin scattering effect.

Description

technical field [0001] The invention relates to a wavelength frequency stabilization system, specifically a high-precision wavelength frequency stabilization system based on the cascaded stimulated Brillouin scattering effect, including an adjustable single-frequency laser, a phase modulator, a signal generator, an optical circulator, Wavelength Brillouin erbium-doped fiber laser, tunable optical filter, photodetector, microwave mixer, frequency tracking system. Background technique [0002] The stable narrow-linewidth optical wavelength and frequency output not only improves the basic performance of the laser itself, but also can be used in many fields such as communication and sensing. At present, the main solution for wavelength and frequency stabilization is PDH (Pound-Drever-Hall) technology. The basic principle is to phase modulate the single-frequency light and then enter the reference optical resonator. Since a large phase change will be introduced near the resonant ...

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Application Information

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IPC IPC(8): H01S3/108H01S3/137H01S3/067
CPCH01S3/067H01S3/1086H01S3/137
Inventor 刘毅刘丽王宇刘香莲
Owner TAIYUAN UNIV OF TECH
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