Dissipative soliton swept-frequency light source and OCT imaging system
A technology of dissipating soliton and swept frequency light source, applied in the field of modern optical communication, can solve the problems of unstable frequency sweep and insufficient sweep frequency range of swept frequency light source, so as to improve the stability and solve the problem that the sweep frequency bandwidth is not wide enough and insufficient. The effect of stabilizing and reducing relative intensity noise
Active Publication Date: 2021-11-30
SHENZHEN TECH UNIV
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Problems solved by technology
[0004] The technical problem to be solved by the embodiments of the present invention is to provide a dissipative soliton frequency-sweeping light source, which aims to solve the problem that the frequency-sweeping range of the frequency-sweeping light source in the related art is not wide enough and the frequency-sweeping is unstable
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[0023] 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.
[0024] Such as figure 1 As shown, it is a dissipative soliton frequency-sweeping light source provided by the embodiment of the present invention, including a seed light source, an erbium-doped fiber amplifier, and a dispersion delay structure. The seed light source is used to output a dissipative soliton pulse laser, and the first One end is connected to the seed light source, and the second end of the erbium-doped fiber amplifier is connected to the dispersion time-delay structure. The erbium-doped fiber amplifier is used to amplify the energy of the dissipated soliton pulse laser and fine-tune t...
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Abstract
The embodiment of the invention belongs to the technical field of modern optical communication, and provides adissipative soliton swept-frequency light source and an OCT imaging system. The dissipative soliton swept-frequency light source comprises a seed light source, an erbium-doped optical fiber amplifier and a dispersion time delay structure; the seed light source is used for outputting dissipative soliton pulse laser; a first end of the erbium-doped optical fiber amplifier is connected with the seed light source; the second end of the erbium-doped optical fiber amplifier is connected with the dispersion time delay structure; the erbium-doped optical fiber amplifier is used for amplifying the energy of the dissipative soliton pulse laser and finely adjusting the spectral shape; the dispersion time delay structure comprises a dispersion compensation optical fiber; dispersion Fourier transform is carried out on the dissipative soliton pulse laser in the dispersion compensation optical fiber, so that sweep frequency laser with wavelengths linearly arranged along with time is obtained. The invention aims to solve the problems that the frequency sweeping range of a frequency sweeping light source is not wide enough and the frequency sweeping is unstable in the prior art.
Description
technical field [0001] The invention belongs to the technical field of modern optical communication, and in particular relates to a dissipative soliton frequency-sweeping light source and an OCT imaging system. Background technique [0002] Optical coherence tomography (OCT) is a non-invasive, non-contact optical tomography technique with extremely high resolution. The frequency-sweeping OCT technology belongs to the third generation of OCT technology, and its sensitivity and signal-to-noise ratio are significantly better than the traditional OCT technology; and the depth information acquisition process of the frequency-sweeping OCT technology does not require axial mechanical scanning, so it can significantly improve the OCT system. Imaging speed, enhanced system stability. The frequency-sweeping OCT system scans the fast wavelength of the frequency-sweeping laser, and uses a point detector to detect the intensity of the interference signal of the wavelength, and finally o...
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IPC IPC(8): H01S3/10H01S3/101H01S3/067G02F1/35
CPCH01S3/06754H01S3/10H01S3/10061H01S3/101G02F1/3513
Inventor 吴旭郝锦涛张恩诚杨志伟欧阳德钦陈业旺刘敏秋李春波吕启涛阮双琛
Owner SHENZHEN TECH UNIV