Industrial-grade optical module, optical fiber communication equipment and optical fiber communication system

Abstract

The invention discloses an industrial-grade optical module, optical fiber communication equipment and an optical fiber communication system. The industrial-grade optical module comprises: an electrical interface used for accessing an electrical signal; the laser emission assembly which is connected with the electrical interface and is used for converting the electrical signal accessed by the electrical interface into an optical signal of which the wavelength is lower than a preset typical value and outputting the optical signal; the temperature control circuit which is provided with a resistance element used for carrying out heating compensation on the laser emission assembly; the main control device which is electrically connected with the laser emission assembly and the temperature control circuit respectively; and the main control device which is used for detecting the working temperature of the laser emission assembly and controlling the temperature control circuit to work according to the working temperature of the laser emission assembly so as to enable the resistor element to perform heating compensation on the laser emission assembly. According to the industrial-grade optical module, industrial-grade temperature control can be realized on the premise of not using a TEC scheme.

Description

technical field [0001] The invention relates to the field of optical fiber communication, in particular to an industrial-grade optical module, optical fiber communication equipment and an optical fiber communication system. Background technique [0002] At present, due to the consideration of optical fiber resources and bandwidth, the construction planning of 5G base stations requires the use of CWDM (CWDM: coarse wavelength division multiplexing, which needs to be matched with passive wavelength division equipment) optical modules to realize networking, and it needs to be suitable for outdoor Industrial-grade optical modules for base stations. The protocol standard for the wavelength range of each channel of passive WDM equipment is the typical value of the central wavelength of plus or minus 6.5nm, while the wavelength of the laser emitted by the laser transmitter varies with temperature by 0.1nm / °C, within the industrial temperature range (-40 ℃~85℃, the normal operating...

AI Technical Summary

Problems solved by technology

[0003] The existing optical module uses the TEC solution (Thermo Electric Cooler) to keep the working temperature constant; however, the TEC solution needs to add a complex control circuit, and once the temperature changes, it will cool / heat accordingly, which will not only make the system The increase in cost will also increase the power consumption of the system. When the power consumption of 5G base stations is much higher than that of 4G base stations, it is not conducive to large-scale deployment, and the TEC solution needs to generate large currents for cooling at high temperatures. , and the high current will further increase the temperature of the module, resulting in a vicious circle, making the TEC scheme invalid

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