Inflatable hollow-core optical fiber device for high-energy femtosecond pulse spectrum broadening

Abstract

The utility model relates to the technical field of ultrafast laser, in particular to an inflatable hollow-core optical fiber device for high-energy femtosecond pulse spectrum broadening, which comprises an incident unit, an optical fiber supporting unit and an emergent unit, and can vacuumize the interiors of the incident unit and the emergent unit in actual use by arranging an air exhaust interface, so that the air exhaust interface can be used for vacuumizing the interiors of the incident unit and the emergent unit. Internal residual air is avoided, and the reliability is improved; the device can realize the design of inflating at one end and exhausting at the other end, further ensures that the gas filling in the hollow-core optical fiber has a uniform air pressure gradient by utilizing the pressure difference, and further improves the spectrum broadening capability of the spectrum; meanwhile, the hollow-core optical fiber is bonded with the optical fiber pipeline through the optical fiber sealing piece, the structure is simple, operation is convenient, the working efficiency is improved, meanwhile, the connection reliability of the hollow-core optical fiber is guaranteed, and damage is avoided.

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