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Intermediate infrared super-continuum spectrum laser device for outputting flat spectra

A technology of lasers and infrared ultrasonography, applied in the direction of lasers, laser devices, laser components, etc., can solve problems such as inability to adapt to wide-spectrum accurate quantitative analysis

Active Publication Date: 2016-07-13
SHANGHAI INST OF TECHNICAL PHYSICS - CHINESE ACAD OF SCI
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Problems solved by technology

[0004] However, the current mid-infrared supercontinuum laser sources are not suitable for some applications that require accurate broad-spectrum quantitative analysis, because the existing mid-infrared supercontinuum laser sources have limitations in technical indicators such as output spectral flatness and stability. Some problems, unable to adapt to the requirements of wide-spectrum accurate quantitative analysis

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  • Intermediate infrared super-continuum spectrum laser device for outputting flat spectra

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Embodiment Construction

[0032] The specific embodiment of the present invention is as figure 1 shown.

[0033] The structure of the multi-wavelength frequency modulation amplitude modulation flat spectrum output mid-infrared supercontinuum laser proposed by the present invention is as follows figure 1 As shown, the supercontinuum laser is composed of a main controller 1 , a pump source module 2 , a ring laser module 22 and a supercontinuum generation and monitoring module 32 .

[0034] The pump source module 2 is used to generate the multi-wavelength pulsed seed laser light of the ring laser assembly 22 . It includes frequency controller 3, first pulse generator 4, first shaping amplifier 5, first laser tube driving circuit 42, second pulse generator 9, second shaping amplifier 10, second laser tube driving circuit 43, the first Three pulse generators 14, the third shaping amplifier 15, the third laser tube drive circuit 44, three-in-one optical fiber 19, the first polarization controller 20 and op...

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Abstract

The invention discloses an intermediate infrared super-continuum spectrum laser device for outputting flat spectra.The intermediate infrared super-continuum spectrum laser device consists of a main controller, a pumping source module, an annular laser device module and a super-continuum spectrum generating and monitoring module.The main controller sends out an instruction to start three semiconductor laser units and a wide-spectrum spectrograph.A power controller is used for power adjustment of power amplifiers of the three semiconductor laser units.A frequency controller is used for adjusting the working frequencies of a first pulse generator, a second pulse generator and a third pulse generator.Spectrum widening of three-wavelength ultra-short femtosecond laser pulses is performed by a ZBLAN optical fiber, then the wide-spectrum spectrograph performs flatness analysis, and an analysis result is sent to the main controller for analysis.The intermediate infrared super-continuum spectrum laser device has the advantages of being capable of outputting intermediate infrared flat super-continuum spectra and meeting the demands on the aspects of accurate and quantitative wide-spectrum analysis and the like.

Description

technical field [0001] The invention relates to a structure and a realization method of a laser, in particular to a mid-infrared supercontinuum laser pumped based on a feedback-type frequency modulation and amplitude modulation multi-wavelength laser and a method for realizing super-flat spectrum output thereof. Background technique [0002] Supercontinuum laser means that when the pump laser passes through a special optical waveguide, a series of nonlinear effects cause the spectrum of the incident laser beam to broaden, thereby outputting a wide-spectrum laser beam—called a supercontinuum. Especially with the development of ultrafast laser and photonic crystal fibers (PCF for short) technology, the use of ultrashort pulses propagating in PCF to generate supercontinuum light has become a topic that attracts worldwide attention. This technique requires only very low pulse energies (about 1nJ) to generate supercontinuum light, and the resulting supercontinuum light is coheren...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01S5/40H01S5/04H01S5/0683
CPCH01S5/041H01S5/0687H01S5/40
Inventor 万雄刘鹏希章婷婷
Owner SHANGHAI INST OF TECHNICAL PHYSICS - CHINESE ACAD OF SCI
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