Circular polarization soliton generation device and multiphoton microimaging system

A generation device and microscopic imaging technology, applied in the field of optical imaging, can solve the problem of low soliton energy

Inactive Publication Date: 2019-09-10
SHENZHEN UNIV
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  • Abstract
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  • Application Information

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Problems solved by technology

[0009] The main purpose of the present invention is to provide a circularly polarized soliton generating device and a multiphoton microscopic imaging system, aiming to solve the technical problem of low energy of optical solitons generated in the prior art

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  • Circular polarization soliton generation device and multiphoton microimaging system

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Embodiment Construction

[0027] In order to make the purpose, features and advantages of the present invention more obvious and understandable, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described The embodiments are only some of the embodiments of the present invention, but not all of them. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without making creative efforts belong to the protection scope of the present invention.

[0028] figure 1 is a schematic diagram of a circularly polarized soliton generating device according to an embodiment of the present invention.

[0029] As can be seen from the figure, the circularly polarized soliton generating device 1 can have a pump laser 11, a first quarter-wave plate 12, a first focusing lens 13, and an optical fiber 1...

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Abstract

The invention relates to a circular polarization soliton generation device and a multiphoton microimaging system. The circular polarization soliton generation device comprises a pump laser, a first quarter-wave plate, a first focusing lens and an optical fiber all located on the same path, wherein a linearly polarized beam generated by the pump laser is converted into a circularly polarized beam through the first quarter-wave plate, the circularly polarized beam passes through the focusing lens and then is coupled in the optical fiber, and the circularly polarized beam is converted into a circular polarization soliton after passing through the optical fiber. Through the first quarter-wave plate, the linearly polarized beam is converted into the circularly polarized beam, and then, the circularly polarized beam is converted into the circular polarization soliton after passing through the optical fiber. Tests prove that, under the same condition, energy of the circular polarization soliton is 1.56 times of the energy of a linear polarization soliton, thus, a multiphoton signal can be transmitted further in the brain, then, the human can further explore deep-seated tissues in the brain, and mysteries of the brain can be demystified.

Description

technical field [0001] The invention relates to the technical field of optical imaging, in particular to a circularly polarized soliton generating device and a multiphoton microscopic imaging system. Background technique [0002] Optical solitons (Solitons, Solitons in optical fibers) refer to light pulses that keep their shape unchanged after long-distance transmission. A beam of light pulses contains many different frequency components. Different frequencies have different propagation speeds in the medium. Therefore, the light pulses will be dispersed in the optical fiber, making the pulse width wider. However, when a very narrow monochromatic light pulse with high intensity is incident into the fiber, the Kerr effect will occur, that is, the refractive index of the medium changes with the light intensity, which leads to self-phase modulation in the light pulse, making the pulse front The resulting phase change causes the frequency to decrease, and the phase change produc...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G02B27/28G02B21/06G02B21/36
CPCG02B21/06G02B21/361G02B27/286
Inventor 邱娉王科甘梦瑶仝申庄自伟刘鸿吉程慧
Owner SHENZHEN UNIV
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