Embedded multi-core fiber optic sight and positioning device
A multi-core optical fiber and positioning device technology, applied in the direction of light guides, optics, instruments, etc., can solve the problem of no guiding function, unavoidable misalignment between a single optical fiber and a star image, and the inability to obtain whether a single optical fiber is aligned with the target source Feedback of information and other issues to achieve the effect of improving light energy collection efficiency, improving the shape of the outgoing spot, and improving the receiving efficiency
Inactive Publication Date: 2017-01-04
HARBIN ENG UNIV
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However, the 4,000 single optical fibers it uses do not have a guiding function, and it is impossible to obtain feedback on whether a single optical fiber is aligned with the target source. It is inevitable that there will be misalignment between the single optical fiber and the star image, which will eventually affect large-scale The Observation Capability and Efficiency of Astronomical Telescopes
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[0028] The present invention will be described in more detail below with examples in conjunction with the accompanying drawings.
[0029] Figure 1A-Figure 1C , The preform of the embedded multi-core fiber optic collimator is mainly composed of the main core fiber 1, the side core fiber 2, the quartz capillary 11 and the protective sleeve 6 of the tail fibers 4 and 5. After the main core optical fiber 1 and several side core optical fibers 2 are removed with a certain length of coating layer, they are embedded in the quartz capillary 11 in a certain order, and the distribution characteristics of the optical fibers are that the main core optical fiber 1 is located in the center, and the side core optical fibers 2 are in the main core. The surroundings of the optical fiber 1 are evenly distributed, and the number of side-core optical fibers 2 is determined according to the characteristics of the transmission light field. The protective sheaths 6 of the pigtails 4 and 5 are bond...
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The invention provides an embedded multi-core fiber sighting device and a positioning device. A main fiber core is formed by a main core fiber is arranged at the center; side fiber cores formed by side core fibers are arranged around the main fiber core; and an outer cladding layer of the multi-core fiber sighting device is formed by an outer quartz capillary. The side fiber cores are distributed at the periphery of the main fiber core. When an ncident light spot deviates from the main fiber core, one part of light enters one or more side fiber cores in a coupling mode and is transmitted to a detector by the corresponding side core fibers. Outputted light signals from different side core fibers are compared to realize feedback of light source light field location information, thereby adjusting the location of the multi-core fiber sighting device; and thus the incident light spot irradiates the main fiber core and enters the main core fiber correspondingly for transmission. When a light signal is received, the side cores are used for monitoring whether an incident light spot is aligned at the main core. The provided multi-core fiber sighting device not only can be used for feedback adjustment of the optical fiber end location in astronomical spectral observation but also can be used for tracking and monitoring a light source signal with location changing randomly in real time.
Description
technical field [0001] The invention relates to an integrated optical fiber device, in particular to an embedded multi-core optical fiber collimator. The invention also relates to a positioning device comprising an embedded multi-fiber collimator. Background technique [0002] The application range of optical fiber and optical fiber devices has expanded from the traditional field of optical fiber communication to many new fields such as optical fiber sensing, spectral measurement, and broadband light source. Among them, since the first application of optical fiber in the MX spectrometer of the 2.3-meter telescope at the Steward Observatory in the United States in 1979, optical fiber technology has been widely promoted in astronomical telescopes. Because optical fiber has long-distance transmission, light collection within a certain caliber, and flexible spatial arrangement capabilities, its application in astronomy is of revolutionary significance. It is mainly used for mul...
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IPC IPC(8): G02B6/42
CPCG02B6/4222
Inventor 孙伟民闫奇耿涛黄宗军付洋胡琪浩田赫刘永军关春颖
Owner HARBIN ENG UNIV