Hectowatt collimation type isolator

Abstract

The invention discloses a hectowatt collimation type isolator which comprises a mould stripping device (1), an optical collimator (2), an isolator chipware (3) and a beam expander (4), wherein the mould stripping device (1), the optical collimator (2), the isolator chipware (3) and the beam expander (4) are arranged along a forward direction light incident optical axis. The mould stripping device (1) is connected with the optical collimator (2) through optical fibers (10). Two symmetrically-arranged reflective mirrors (5) are arranged between the optical collimator (2) and the isolator chipware (3). The mould stripping device (1), the optical collimator (2), the isolator chipware (3), the beam expander (4) and the reflective mirrors (5) are all arranged in a water-cooled packaging device (11). The hectowatt collimation type isolator has the advantages of being high in isolation, good in heat dissipation effect and stable in working performance, and can be used in high-power pulsed lasers.

Description

technical field [0001] The invention relates to an isolator, in particular to a hundred-watt-level collimating isolator, which belongs to the field of lasers. Background technique [0002] An optical isolator is an optical passive device that only allows light to pass in one direction and blocks light in the opposite direction. Semiconductor lasers, optical amplifiers, and fiber lasers are very sensitive to reflected light from connectors, splices, filters, etc., and may cause performance degradation or even damage, so optical isolators are required to prevent reflected light. In fiber optic communication, the light reflected by the fiber echo can be well isolated by optical isolation. In applications such as optical lasers, optical isolators are usually used in the optical path to avoid interference and damage to the light source, pumping source, and other light-emitting devices caused by echoes in the optical path. [0003] Most of the optical isolators currently in use ...

AI Technical Summary

Problems solved by technology

Because once it involves high power, it is easy to have large insertion loss and poor heat dissipation due to technical reasons, which will cause adverse consequences such as low isolation and poor working stability. In severe cases, it will also cause damage to the laser.

Prior to this, there was no optical isolator in China that could be used for 100W high-power pulsed lasers

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