Wide-tuning and narrow-linewidth nanosecond pulse double-resonance medium-infrared parameter oscillator

A parametric oscillator and nanosecond pulse technology, which is applied in the field of nanosecond pulse double-resonance mid-infrared optical parametric oscillator, can solve the problems of laser output single-frequency characteristic deterioration, and achieve wide coverage, convenient tuning, and improved efficiency. Effect

Active Publication Date: 2017-05-24
SHANGHAI INST OF OPTICS & FINE MECHANICS CHINESE ACAD OF SCI
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Problems solved by technology

[0007] Conventional seed injection laser systems use piezoelectric ceramics to control the cavity length of the laser, but due to the nonlinear characteristics and oscillation of piezoelectric ceramics, the output single-frequency characteristics of the laser often deteriorate

Method used

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  • Wide-tuning and narrow-linewidth nanosecond pulse double-resonance medium-infrared parameter oscillator
  • Wide-tuning and narrow-linewidth nanosecond pulse double-resonance medium-infrared parameter oscillator

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Embodiment Construction

[0026] In order to further illustrate the specific technical content of the present invention, below in conjunction with embodiment and accompanying drawing, describe in detail as follows:

[0027] first refer to figure 1 , figure 1 It is a structural schematic diagram of a wide-tuning, narrow-linewidth nanosecond pulse double-resonance mid-infrared parametric oscillator of the present invention. The present invention includes four parts: single-frequency pump light, double-resonance resonator, electrical control part and seed light:

[0028] The single-frequency pump light includes a 1.064 μm pump source 1-1, a focusing lens 1-2, a 1.064 μm half-wave plate 1-3 installed on a rotatable bracket, a polarizer 1-4 and a dichroic mirror 1 -5;

[0029] The double-resonance resonator includes a flat-concave first cavity mirror 2-1, a multi-period polarized crystal 2-2 fixed on a crystal temperature control furnace 2-3, a flat-concave second cavity mirror 2-4, and a planar second ca...

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Abstract

The invention provides a double-resonance, wide-tuning and narrow-linewidth all-solid-state nanosecond pulse medium-infrared optical parameter oscillator comprising four parts including single-frequency pump light, a double-resonance resonant cavity, an electrical control part and seed light. A 1.064 <mu>m single-frequency pulse laser pump quasi-phase matching multi-cycle polarized crystal double-resonance parameter oscillator is adopted to acquire dual-band laser output of wide-tuning range near-infrared signal light and medium-infrared idle light. The output central wavelength is tunable within the wide spectral range, and the cavity length is dynamically adjusted through electro-optical crystal by combining a single-frequency continuous semiconductor laser seed injection technology so as to realize narrow-linewidth laser output of the optical parameter oscillator. The oscillator can be widely applied to the field of high-resolution laser spectroscopy, laser radar, laser remote sensing, environmental detection, optical-electro countermeasure and laser medicine.

Description

technical field [0001] The invention relates to an optical device, in particular to a nanosecond pulse double-resonance mid-infrared optical parameter oscillator with wide tuning and narrow line width. Wide tuning range laser output is realized through temperature, period and angle tuning, dual-band oscillation is realized through double-resonant ring cavity, and narrow linewidth laser output is realized by combining seed injection technology. It is suitable for laser spectroscopy, laser radar, laser remote sensing, environmental pollution detection, photoelectric detection, laser medical treatment and other fields. Background technique [0002] The near-infrared and mid-infrared are very important atmospheric windows in the optical band. The near-infrared band is not only the safest band for lasers to human eyes, but also lies in the atmospheric transmission window, which has a strong ability to penetrate smoke, so that high-precision wind measurement, radar, etc. can be d...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01S3/06H01S3/08H01S3/081H01S3/091H01S3/10
CPCH01S3/0602H01S3/08059H01S3/081H01S3/091H01S3/10084
Inventor 朱小磊董怡静马秀华李世光张俊旋谢小兵陈晓谢伟
Owner SHANGHAI INST OF OPTICS & FINE MECHANICS CHINESE ACAD OF SCI
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