Compact tunable infrared laser based on Mamyshev oscillator difference frequency

An oscillator and compact technology, which is applied in the field of compact tunable infrared lasers, can solve the problems of complex overall structure and inability to provide portable application requirements, and achieve the effects of improving output efficiency, improving flexibility, and good coherence

Inactive Publication Date: 2020-09-25
NANJING UNIV
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Problems solved by technology

The technical solution is still relatively complex in overall structure, and cannot provide portable application requirements

Method used

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  • Compact tunable infrared laser based on Mamyshev oscillator difference frequency
  • Compact tunable infrared laser based on Mamyshev oscillator difference frequency
  • Compact tunable infrared laser based on Mamyshev oscillator difference frequency

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Embodiment Construction

[0031] In order to make the object, technical solution and advantages of the present invention clearer, the present invention will be further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain the present invention, not to limit the present invention.

[0032] combine figure 1, a compact tunable infrared laser based on the difference frequency of Mamyshev oscillator mainly includes: a high-power Mamyshev oscillator and a difference frequency generation module.

[0033] The high-power output Mamyshev oscillator is equipped with two output ports, including an oscillation optical module, a first filtering optical splitting module and a second filtering optical splitting module;

[0034] Pulse seed source 15, photoelectric switch 14 and third isolator 13 are connected in sequence to form an oscillation optical module; pump source 1, beam combiner 2, ...

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Abstract

The invention discloses a compact tunable infrared laser based on Mamyshev oscillator difference frequency. The compact tunable infrared laser comprises a high-power Mamyshev oscillator and a difference frequency generation module. The high-power output Mamyshev oscillator is provided with two output ports. The Mamyshev oscillator comprises an oscillation starting optical module, a first filteringlight splitting module and a second filtering light splitting module. Two paths of output ports of the high-power output Mamyshev oscillator are provided, and the difference frequency generation module is provided with two input ports which are respectively two output ports of the high-power output Mamyshev oscillator, the two input ports are combined into one beam through a second beam combiner,and a collimator, a half-wave plate, a focusing lens, an infrared nonlinear crystal, a focusing lens and a filter are sequentially and closely connected behind the second beam combiner to form the difference frequency generation module. The method provided by the invention is simple and reliable, and is an ideal scheme for constructing the tunable infrared light source.

Description

Technical field: [0001] The invention relates to an oscillator difference frequency infrared laser system, in particular to a compact tunable infrared laser based on the difference frequency of a Mamyshev oscillator. The device can realize high-energy, wide-range wavelength tunable infrared laser output. Background technique: [0002] In recent years, sensitive and fast multi-gas analysis spectroscopy systems have developed rapidly, mainly due to their numerous applications in medical diagnosis, environmental and physical sciences, industry, and homeland security. However, the lack of commercial infrared pulsed laser sources, especially high peak power laser sources in the molecular "fingerprint" spectral region (6-20 μm) corresponding to the absorption peaks of many chemical molecules, restricts the development of gas analysis spectroscopy systems to a certain extent. . At present, nonlinear optical frequency conversion technology is still the mainstream technical solution...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01S3/094H01S3/102
CPCH01S3/094003H01S3/094053H01S3/1022H01S3/1024
Inventor 王枫秋孟亚飞黎遥徐永兵施毅张荣
Owner NANJING UNIV
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