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Laser source device of coherent anti-Stokes Raman scattering microscopic system and production method thereof

A technology of laser light source and microscopic system, which is applied in the direction of devices controlling laser output parameters, optics, nonlinear optics, etc. It can solve the problems of reducing system stability and increasing system complexity, so as to increase system stability and reduce system complexity. Cost and complexity, and the effect of improving conversion efficiency

Inactive Publication Date: 2012-08-08
TSINGHUA UNIV
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Problems solved by technology

The introduction of the above-mentioned spatial light path will undoubtedly increase the complexity of the system and reduce the stability of the system

Method used

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  • Laser source device of coherent anti-Stokes Raman scattering microscopic system and production method thereof
  • Laser source device of coherent anti-Stokes Raman scattering microscopic system and production method thereof
  • Laser source device of coherent anti-Stokes Raman scattering microscopic system and production method thereof

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Embodiment Construction

[0035] In order to make the above objects, features and advantages of the present invention more comprehensible, the present invention will be further described in detail below in conjunction with the accompanying drawings and specific embodiments.

[0036] figure 1 It is a schematic diagram of one embodiment of the laser light source device of the coherent anti-Stokes Raman scattering microscope system of the present invention.

[0037] Please see figure 1 , the device in this embodiment includes an ultrashort pulse fiber laser 1-1, which is used to generate the pump light of the parametric amplifier and provide the Stokes light required for the coherent anti-Stokes Raman scattering process.

[0038] The beam combiner 7 is used to combine two beams of light with different wavelengths in space;

[0039] A tunable continuous optical semiconductor laser 1-2 is used to obtain the seed light of the parametric amplifier. The fiber amplifier 1-3 is used to amplify the output of t...

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Abstract

The invention discloses a laser source device of coherent anti-Stokes Raman scattering microscopic system, which comprises: an ultrashort pulse fiber laser for providing the pumping light of a parametric amplifier and the Stokes light required by the process of coherent anti-Stokes Raman scattering process; a tunable continuous light semiconductor laser and a fiber amplifier for amplifying the output light of the tunable continuous light semiconductor laser, wherein the light amplified is regarded as the seed light of the parametric amplifier; a light beam combiner for spatially combing the pumping light and the seed light of the parametric amplifier; a first nonlinear crystal and a second nonlinear crystal for sequentially receiving the light beams from the light beam combiner, wherein the two nonlinear crystals are respectively regarded as the parametric amplifier and the frequency multiplier for the seed light; a collimating focusing device arranged between the first nonlinear crystal and the second nonlinear crystal and a collimating device arranged behind the second nonlinear crystal; and a low-pass filter arranged behind the collimating device and used for filtering out the pumping light and the Stokes light required by the process of coherent anti-Stokes Raman scattering.

Description

technical field [0001] The invention belongs to the field of nonlinear optical microscopy, in particular to a device and a production method of a laser light source of a coherent anti-Stokes Raman scattering microscopy system. Background technique [0002] Coherent Raman Scattering Microscopy, including Coherent anti-Stokes Raman Scattering (CARS) Microscopy and Stimulated Raman Scattering (SRS) Microscopy, with label-free, high Sensitivity, three-dimensional imaging and other advantages, have potential applications in the field of real-time biomedical imaging. [0003] However, the advantages of coherent Raman microscopy come at the expense of its complex excitation light source. In order to realize coherent Raman scattering microscopy imaging, time-synchronized, wavelength-tunable, high-energy two beams of ultrashort optical pulses are needed for excitation. When the wavelength difference between the two beams of excitation light coincides with the characteristic Raman p...

Claims

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Application Information

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IPC IPC(8): G02F1/35G02F1/39G02F1/37H01S5/06
Inventor 孔令杰杨昌喜肖晓晟
Owner TSINGHUA UNIV
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