Middle-infrared band continuous all-fiber oscillator

Abstract

The invention provides a mid-infrared band continuous all-fiber oscillator. The mid-infrared band continuous all-fiber oscillator comprises a signal fiber, a mid-infrared fiber combiner, a pumping module and a gold mirror, after the coating layer of the signal optical fiber is stripped, the signal optical fiber is fixed on the manufacturing platform, so that the signal optical fiber is in a parallel state with the plane of the operation platform after being fixed, and the parallel state is not changed in the experiment process; the pump optical fiber subjected to fused biconical taper is wound to the position where a coating layer of the signal optical fiber is stripped, the pump module is used for providing pump light for the pump optical fiber, the pump light is transmitted in the signal optical fiber and then is reflected by the gold mirror to form oscillation, intermediate infrared continuous laser with the wave band of 2.5-3.1 microns is generated, and full fibrillation of the intermediate infrared band continuous optical fiber oscillator is achieved; and when the optical fiber is applied to the intermediate infrared optical fiber amplifier, the intermediate infrared optical fiber laser can be fully fibrillated.

Description

Technical field[0001]The present invention belongs to the field of fiber laser technology, and involves a consecutive full-optical fiber oscillator in an infrared wave section.Background technique[0002]At present, since the medium infrared band laser has a wide range of applications in laser navigation, laser guidance, laser medical, laser radar, atmospheric detection and other fields, the development of medium infrared band lasers has become a research hotspot in researchers. Especially in the military field, since most satellite's electro-optic sensors range from 2.5 to 3.3μm band, however, the infrared band laser can instantly provide high peak power is sufficient to interfere with these detection devices, so the infrared laser Directional interference technology has become the focus of the active research of military institutions in many countries.[0003]In the development of fiber optic oscillator in medium infrared band, how to effectively couple the pump light into the signal ...

AI Technical Summary

Problems solved by technology

Since the signal fiber in the mid-infrared band is a non-quartz fluoride soft glass fiber, its special physical properties cause problems for signal fiber fusion, and the coupling efficiency is low

Therefore, the researchers used the method of spatial optical coupling to couple the pump light into the signal fiber. Although the coupling efficiency has been improved, the beam will be deformed due to the transmission of the pump light in space, and the deterioration of the beam quality will cause problems in the later stages of the laser. Magnification adds to the difficulty

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