A gourd optical fiber for transmitting hollow light beams
A gourd and optical fiber technology, applied in the direction of multi-layer core/cladding optical fiber, cladding optical fiber, optical waveguide light guide, etc., can solve the problem of inability to conduct blue detuning to guide atoms, and achieve high-precision atomic interference gyroscope, The effect of reducing drawing requirements and fewer bonding points
A gourd and optical fiber technology, applied in the direction of multi-layer core/cladding optical fiber, cladding optical fiber, optical waveguide light guide, etc., can solve the problem of inability to conduct blue detuning to guide atoms, and achieve high-precision atomic interference gyroscope, The effect of reducing drawing requirements and fewer bonding points
CN109270625BActive Publication Date: 2019-10-11BEIHANG UNIV
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[0018] A "cucurbit" optical fiber for transmitting a hollow light beam provided by the present invention will be further described below in conjunction with the accompanying drawings.
[0019] Due to the literature (references [1] Bashkansky M, Park D, Fatemi F K. Azimuthally and radially polarized light with a nematic SLM [J]. Optics Express, 2009, 18 (1): 212-217.) show that the vortex The polarization direction of the electric field is conducive to the formation of a hollow beam. Therefore, in order to ensure that the blue-detuned hollow beam with a vortex electric field polarization direction can be transmitted in a hollow-core anti-resonant fiber, it can be applied to the blue-detuned laser-guided atom experiment. Hollow-core anti-resonant fiber for blue-detuned guiding atoms under the premise of increasing the difficulty of fiber fabrication.
[0020] In the embodiment of the present invention, it is mainly aimed at guiding 87 The Rb atom experiment started research, du...
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The invention discloses a hoist optical fiber for transmitting hollow light beams and belongs to the technical field of optical fiber structure design. The hoist optical fiber includes an air fiber core, a fiber core anti-resonance single ring, a quartz supporting frame, a cladding air layer and a quartz cladding layer; the fiber core anti-resonance single ring forms an anti-resonant wall; and a fiber core is filled with air, so that the air fiber core can be formed; and the quartz supporting frame is adopted to support the fiber core anti-resonance single ring. The wall thickness of the fibercore anti-resonance single ring, the position of the joint point of the quartz supporting frame and the fiber core anti-resonance single ring, the size of the joint point and the wall thickness of the quartz supporting frame can be adjusted, and therefore, the hollow-core anti-resonance single ring used for blue-detuned atomic guide can be realized. The hoist optical fiber is small in transmission confinement loss and is simple in structure, and therefore, the hoist optical fiber can better transmit the hollow light beams, and the interaction area between light and atoms and the guiding efficiency of the atoms can be improved, the realization of an experiment of blue-detuned atomic guide can be benefitted, and a high-precision atomic interference gyroscope can be realized.
Description
technical field [0001] The invention belongs to the technical field of optical fiber structure design, and in particular relates to a "cucurbit" optical fiber for transmitting hollow light beams. Background technique [0002] Hollow-core anti-resonant fiber is a new type of microstructured fiber that guides light through leaky modes. When the transverse propagation constant of the grazing light in the core does not resonate with the silica cladding, it can be regarded as a broadband guide. A light window, which generally has a large structural size and a simple cladding structure. The light-guiding path is established in the air core, which can perfectly solve the inherent defects (non-linearity, dispersion, photo-induced damage, etc.) of the traditional solid-core fiber. The uniqueness of this structure and light guiding mechanism makes the hollow core antiresonant fiber have many characteristics different from traditional optical fibers, such as broadband light guiding an...
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Patent Timeline
11 Oct 2019
Publication
CN109270625B
- IPC
- G02B6/02; G02B6/032; G02B6/036
- Inventors
- 徐小斌; 邸照