Integrated optical fiber device and optical fiber amplifier thereof

Abstract

The invention discloses an integrated optical fiber device and an optical fiber amplifier thereof. The integrated optical fiber device comprises a first energy transfer optical fiber, a dichroic mirror, a second energy transfer optical fiber and a third energy transfer optical fiber, wherein the first end of the first energy transfer optical fiber is a signal laser incident end; the first end of the second energy transfer optical fiber is a pump laser incident end; the pump laser is transmitted through the dichroic mirror and is then coupled with the signal laser, the signal laser is reflectedthrough the dichroic mirror and is then transferred out of the integrated optical fiber device from the first end of the third energy transfer optical fiber. The optical fiber device does not need tocoil and fix a pigtail, only two welding points exist, the whole reliability is improved, the system is convenient and quick to assemble and build, and the system after being built is convenient to transport. The device has the advantages of compact structure, stable performance, convenient use and the like. On the other hand, the invention also provides an optical fiber amplifier built by the above integrated optical fiber device.

Description

technical field [0001] The invention relates to an integrated optical fiber device and an optical fiber amplifier thereof, belonging to the field of integrated optical fiber devices. Background technique [0002] Fiber lasers have the characteristics of good heat dissipation, compact system structure, and high beam quality. In recent years, they have been widely used in industrial processing, medical care, and scientific research. Most of the early fiber lasers used a spatial optical path structure, which had the problems of complex coupling optical path and poor stability. In order to realize the all-fiber optical fiber amplifier, researchers have designed a variety of passive optical fiber devices with pigtails. Using these optical fiber devices, the laser / amplifier can be built by fiber fusion without optical path adjustment. However, due to the low integration of these optical fiber devices for fiber lasers / amplifiers, multiple passive optical devices need to be fused d...

AI Technical Summary

Problems solved by technology

However, due to the low integration of these optical fiber devices for fiber lasers / amplifiers, multiple passive optical devices need to be fused during the system construction process, and there are many fusion points, and the pigtails of each passive optical device need to be wound and Fixed, the construction process is more complicated

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