Device and method for automatically closing laser based on light sensitive element

Abstract

The invention discloses a light sensor-based device which automatically closes a laser, and a system and a method thereof. The method comprises the following steps: an optical fiber is separated from a veneer laser, the laser light of which illuminates on the light sensor to cause an impedance change of the light sensor; the circuit state is changed automatically according to the impedance change of the light sensor; and the circuit state is polled incessantly so as to automatically close the laser through the change of the circuit state. The current change of a detection light sensor is adopted to change the circuit state, the laser is closed automatically through polling the changed circuit state so as to ensure that the veneer laser is closed in time after veneer optical fiber is pulled out, thereby effectively avoiding damage caused by the laser to human body; meanwhile, the contact of an optical interface with the outside is cut off, thus effectively reducing dust pollution to the optical interface, having very good dust-proof effect and saving unnecessary waste.

Description

technical field [0001] The invention relates to a monitoring device for a laser amplifier of a wavelength division multiplexing WDM device and its system and technical field, more specifically, it relates to a device for automatically shutting down a laser based on a photosensitive element and an improvement of its system and method. Background technique [0002] Dense Wavelength Division Multiplexing (DWDM) technology combines a group of optical wavelengths and transmits them with one optical fiber. This is a laser technology used to increase bandwidth over existing fiber optic backbones. The technique is to multiplex the tight spectral spacing of individual fiber carriers in a given fiber in order to take advantage of the transmission performance that can be achieved. [0003] The current dense light-wave multiplexing DWDM system can provide single-fiber transmission capacity of 16 / 20 waves or 32 / 40 waves, up to 160 waves, and has flexible expansion capabilities. [0004...

AI Technical Summary

Problems solved by technology

[0007] In addition, since the optical port of the existing dense light-wave multiplexing DWDM equipment board is often exposed, if it is not used for a long time, it will be contaminated with a lot of dust, and if it is not cleaned in time, it will greatly reduce the density of the dense light-wave multiplexing DWDM equipment. System Light Transmission Efficiency

And each cleaning will take up a lot of time of the user, and consume a lot of alcohol and lens paper

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