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Optical fiber light source with output capable of being switched between laser and random laser

A fiber-optic light source, random laser technology, applied in lasers, laser parts, structures/shapes of active media, etc., can solve problems such as hindering development prospects, and achieve good stability and repeatability.

Active Publication Date: 2019-06-11
BEIJING NORMAL UNIVERSITY
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Problems solved by technology

However, the randomness of the direction of random laser radiation hampers its prospects

Method used

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  • Optical fiber light source with output capable of being switched between laser and random laser
  • Optical fiber light source with output capable of being switched between laser and random laser
  • Optical fiber light source with output capable of being switched between laser and random laser

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Embodiment Construction

[0030] The various components of the optical fiber light source whose output can be switched between laser and random laser in the present invention are figure 1 It is shown that the part of the fiber covered by the gain medium film is used to radiate and transmit random laser light, and the structure includes a pump light source, gain medium, nano-scattering particles, and PDMS solid solvent; the part of the fiber not coated with the gain medium film is used to Conventional laser light is coupled into an optical fiber and transmitted.

[0031] One, the realization process figure of optical fiber light source of the present invention (referring to figure 2 )

[0032] (1) Dilute 1.5 mg of DCJTB dye in 1 mL of acetone solution to make a 1.5 mg / mL DCJTB solution; similarly, dilute 1.25 mg of PM567 dye in 1 mL of acetone solution to make a 1.25 mg / mL PM567 solution;

[0033] (2) 0.9mg TiO 2 Nano-scattering particles were dispersed in the two mixed solutions in step (1) to obta...

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Abstract

The invention provides an optical fiber light source with output capable of being switched between a laser and a random laser. The light source has the advantages of miniaturization, simple preparation method, low cost, good stability, good directionality and the like. The optical fiber light source comprises a pumping light source, DCJTB and PM567 gain media, TiO2 nanometer scattering particle doped PDMS (polydimethylsiloxane) and an optical fiber, wherein the TiO2 nanometer scattering particle and DCJTB or PM567 acetone diluent are dispersed in the PDMS to be evenly mixed, and then, mixtureis coated to one section of optical fiber surface. By use of the optical fiber light source, the position of the pumping light source is changed to alternately irradiate the optical fiber which is notcovered with a gain material and an optical fiber covered with the gain material, and the laser and the random laser can be flexibly switched so as to meet different requirements of different fieldson laser light source coherence.

Description

technical field [0001] The present invention relates to the field of fiber lasers, specifically to design a fiber light source whose output can be flexibly switched between traditional laser and random laser. High-quality illumination source with coherent noise suppression. Background technique [0002] Traditional lasers have high photon degeneracy and have been well used in the fields of industry, medical treatment, commerce, scientific research, information, and military affairs. They are indispensable high-brightness light sources for modern optical systems. However, the high coherence of the laser will cause obvious coherent noise due to the diffraction and interference effects in the imaging process, which seriously affects the imaging quality of the laser illumination system. [0003] Unlike traditional lasers, random lasers use multiple scattering of light to achieve stimulated emission amplification of light. In recent years, random lasers have become a hot resear...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01S3/067H01S3/102H01S3/10
Inventor 王兆娜卞耀兴史晓玉
Owner BEIJING NORMAL UNIVERSITY
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