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Open-loop mode parallel optical module lifetime prediction method and device

A life prediction and optical module technology, which is applied in the field of optical modules, can solve the problems of unpredictable service life of parallel modules in open-loop mode

Active Publication Date: 2017-12-19
HISENSE & JONHON OPTICAL ELECTRICAL TECH CO LTD
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Problems solved by technology

[0006] The purpose of the present invention is to provide a method and device for predicting the life of parallel modules in open-loop mode to solve the technical problem that the service life of parallel modules in open-loop mode cannot be predicted

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Embodiment Construction

[0015] In order to make the purpose, technical solutions and advantages of the present invention clearer, the present invention will be further described in detail below in conjunction with the accompanying drawings. Obviously, the described embodiments are only some of the embodiments of the present invention, rather than all of them. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.

[0016] The design idea of ​​the present invention is: from the perspective of the transmitting module of the optical module alone, the service life of the optical module cannot be monitored and predicted because of the backlight monitoring diode in the default closed-loop mode of the open-loop mode, but from the perspective of the system use end Considering comprehensively, because the response current of the received light intensity ind...

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Abstract

The invention discloses an open loop mode parallel optical module service life prediction method and apparatus to solve the technical problem that the service life of an open loop mode parallel module cannot be predicted. The method includes the following steps: controlling the power-on sequence of a parallel optical module to enable a transmitting module and a receiving module in the parallel optical module to be powered on at first; after the transmitting module and the receiving module are powered on, controlling the parallel optical module so that the parallel optical module does not transmit data or transmit idle codes; obtaining the response current Irssi (t) of a receiving light intensity indication signal of the receiving module during each power-on process; and determining whether the service life of the parallel optical module runs out on the basis of the response current intensity of the receiving light intensity indication signal. Irssi (t) = R*P (t), R being the response intensity of a receiving module detector. P (t) = S(t)*Ibias (t) and P (t) is the optical power received by the receiving module, Ibias (t) being bias current applied to a laser. Line fiber attenuation is ignored.

Description

technical field [0001] The invention relates to the technical field of optical modules, in particular to a method and device for predicting the lifetime of an open-loop mode parallel optical module. Background technique [0002] In the field of optical fiber digital communication, in order to improve the information transmission bandwidth and enhance the data throughput capability, the optical modules currently used are all parallel optical modules, and the existing parallel optical modules are all open-loop working modes, that is, in order to improve the overall optical module Packaging density and working bandwidth are realized by COB (Chip on board, the bare chip is adhered to the interconnection substrate with conductive or non-conductive adhesive, and then wire bonded to realize its electrical connection) packaging process. The laser adopts VCSEL (VerticalCavity Surface Emitting Laser (Vertical Cavity Surface Emitting Laser) bare chip array, the detector adopts PIN bare...

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04B10/073
CPCH04B10/0731
Inventor 谭先友姜瑜斐韩泽
Owner HISENSE & JONHON OPTICAL ELECTRICAL TECH CO LTD
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