Array type ultra-narrow linewidth laser

Abstract

The invention relates to the technical field of lasers, and discloses an array type ultra-narrow linewidth laser which comprises a first shell and a second shell, a laser emitting device is fixedly installed in the second shell, the laser emitting device comprises an emitting shell, and eight sets of laser pipeline grooves are formed in the left face and the right face, away from each other, of the emitting shell. A laser pipeline is fixedly installed in the laser pipeline groove, the end, away from the emitting shell, of the laser pipeline is sleeved with a laser generation gain device, a laser emitting opening is formed in the laser generation gain device, and a double-sided convex lens is fixedly installed in the middle of the laser emitting opening. In the invention, through an opticalprinciple, the double-sided convex lens has a function of focusing light, laser transmitted by the laser pipeline is transmitted to the double-sided convex lens from the laser emission port, the double-sided convex lens can gather the energy of the laser on the central point of the double-sided convex lens, and then the laser is transmitted from the back surface of the double-sided convex lens.

Description

technical field [0001] The invention relates to the technical field of lasers, in particular to an array type ultra-narrow linewidth laser. Background technique [0002] The ultra-narrow linewidth laser original array has the characteristics of multi-wavelength, long coherence length, high integration and low phase noise, so it has very important application prospects in the application fields of laser radar and digital coherent transmission system. So far, most of the research on the optical characteristics of the original laser array has focused on the optical characteristics of the combined beam, and there are few detailed studies on the linewidth of the array laser. [0003] For the laser original array linewidth compression methods currently on the market, such as volume Bragg gratings or planar diffraction grating external cavity systems, the linewidth compression processes of different wavelengths in the array are independent of each other and the degree of compressio...

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Problems solved by technology

[0003] For the laser original array linewidth compression methods currently on the market, such as volume Bragg gratings or planar diffraction grating external cavity systems, the linewidth compression processes of different wavelengths in the array are independent of each other and the degree of compression is inconsistent. Moreover, these methods are all costly and complicated

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