Optical module and communication device

Abstract

The invention discloses an optical module and communication equipment. The optical module comprises a plurality of paths of first optical power detection circuits, a plurality of paths of second optical power detection circuits, a plurality of first hysteresis comparators and an MCU, and a register and a plurality of second hysteresis comparators are integrated in the MCU; wherein the MCU is usedfor outputting LOS reference threshold signals to the plurality of first hysteresis comparators and the plurality of second hysteresis comparators, receiving comparison results output by the first hysteresis comparators when timing interruption time is up, and outputting LOS alarm signals when it is determined that the optical signals are lost according to the first comparison results; the secondhysteresis comparators are used for comparing the voltage signals output by the second optical power detection circuit with LOS reference threshold signals so as to output corresponding comparison results; and when it is determined that the optical signal is lost according to the second comparison result, an LOS alarm signal can be outputted to realize a rapid LOS function.

Description

technical field [0001] The invention relates to the technical field of electronic circuits, in particular to an optical module and communication equipment. Background technique [0002] As a more efficient modulation technology, the 400G QSFP-DD SR8 optical module can effectively improve bandwidth utilization efficiency and become a popular signal transmission technology for high-speed signal interconnection in next-generation data centers. It has been widely used in electrical or optical signals transmission. However, mainstream DSP chips do not support LOS functions (LOS functions include LOS Assert, LOS De-assert, LOS Hysteresis), and have no LOS output pins, which makes most of the industry's 400G optical modules not support up to 8 channels of fast mode LOS Assert . In order to meet the optional fast mode LOS Assert in the protocol, it is necessary to design a solution to realize up to 8 fast mode LOS to solve the common problem in the industry that mainstream DSP chi...

AI Technical Summary

Problems solved by technology

However, mainstream DSP chips do not support LOS functions (LOS functions include LOS Assert, LOS De-assert, LOS Hysteresis), and have no LOS output pins, which makes most of the industry's 400G optical modules not support up to 8 channels of fast mode LOS Assert

In order to meet the optional fast mode LOS Assert in the protocol, it is necessary to design a solution to realize up to 8 fast mode LOS to solve the common problem in the industry that mainstream DSP chips do not support the LOS function

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