Multi-channel all-fiber microsphere resonant cavity based on space division multiplexing and manufacturing method of multi-channel all-fiber microsphere resonant cavity

Abstract

The invention discloses a multichannel all-fiber microsphere resonant cavity based on space division multiplexing and a manufacturing method thereof. The multichannel all-fiber microsphere resonant cavity is composed of a hollow microstructure fiber and an all-fiber microsphere resonant cavity. The hollow microstructure optical fiber is composed of an optical fiber cladding (1), a high-germanium-doped optical waveguide array and an optical waveguide supporting microtube array used for supporting the high-germanium-doped optical waveguide array, wherein the optical waveguide supporting microtube array isolates the germanium-doped optical waveguide array from the optical fiber cladding (1), and the microspheres (4) are filled in the hollow microstructure optical fiber and tangent to the high-germanium-doped optical waveguide array; incident light is transmitted to the tangent point of the microspheres (4) along the highly germanium-doped optical waveguide array, light coupled to the microspheres (4) generates optical oscillation in a microsphere equatorial plane (7) tangent to the highly germanium-doped optical waveguide array, and a multi-channel space division multiplexing all-fiber microsphere resonant cavity is formed. According to the invention, an all-fiber structure is realized, and the problems of mechanical stability and high-power wide-spectrum optical coupling are solved.

Description

technical field [0001] The invention relates to the field of optical micro-resonators, in particular to a multi-channel space-division multiplexing all-fiber microsphere resonator and a manufacturing method thereof. Background technique [0002] With the continuous development of micro-nano technology, new optical micro-resonators continue to make new breakthroughs, and are widely used in micro-nano lasers, optical sensors, optical modulators, optical storage and other fields. At present, the common optical microresonators mainly include microsphere resonators, microdisk resonators, and silicon-based optical waveguide resonators. [0003] The microsphere resonator has the advantage of being easy to prepare, but it needs to use the micro-nano fiber as the incident light waveguide to couple light into the microsphere resonator, and the mechanical stability between the micro-nano fiber and the microsphere resonator is a problem for this type of structure. great challenge. (B....

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Problems solved by technology

[0004] In addition, the above-mentioned optical microresonators can only achieve single-channel resonant light output

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