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optical module

An optical module and optical receiving technology, applied in the field of optical communication, can solve problems such as unstable first trigger signal and unstable trigger signal

Active Publication Date: 2020-06-05
HISENSE BROADBAND MULTIMEDIA TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0004] The purpose of the present invention is to solve the problem that the trigger signal SD output by the light receiving end of the optical module in the prior art is easily affected by the reset signal Reset sent by the control chip and is unstable, and to provide an optical module that can Output a stable second trigger signal to replace the unstable first trigger signal in the prior art

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Embodiment Construction

[0017] The present invention will be further described below with reference to the accompanying drawings and exemplary embodiments, examples of which are shown in the accompanying drawings, wherein the same or similar reference numerals represent the same or similar elements or elements with the same or similar functions . The embodiments described below by referring to the figures are exemplary only for explaining the present invention and should not be construed as limiting the present invention. Also, detailed descriptions of known arts will be omitted if they are unnecessary to illustrate the features of the present invention.

[0018] Those skilled in the art will understand that unless otherwise stated, the singular forms "a", "an", "said" and "the" used herein may also include plural forms. It should be further understood that the word "comprising" used in the description of the present invention refers to the presence of said features, integers, steps, operations, ele...

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Abstract

The invention relates to the technical field of optical communication, in particular to an optical module. The optical module includes a light receiving end, a diode, a first resistor, a first capacitor and a comparator, wherein the trigger signal output end of the light receiving end is electrically connected to the anode of the diode for inputting The first trigger signal; the first capacitor, one end of which is electrically connected to the cathode of the diode, the other end is grounded, and a first resistor is connected in parallel at both ends; the comparator, one input end of which is connected to a preset reference voltage, and The other input end is electrically connected to one end of the first capacitor, and its output end outputs a second trigger signal, and the second trigger signal is used to generate a reset signal input to the light receiving end. The second trigger signal output by the scheme realizes the expansion of the first trigger signal, improves the stability of the second trigger signal, and further improves the stability of the whole system.

Description

【Technical field】 [0001] The present invention relates to the technical field of optical communication, and in particular, to an optical module. 【Background technique】 [0002] Passive Optical Network PON (Passive Optical Network: Passive Optical Network) is a technology in the optical access network, which refers to active electronic equipment that does not contain any electronic devices and electronic power sources in the optical distribution network. The PON system consists of three parts: an Optical Line Terminal (OLT for short), an Optical Distribution Network (ODN for short), and an Optical Network Unit (ONU for short). The OLT provides an interface between the network side and the core network for the access network, and is connected to each ONU through the ODN. And as the core functional equipment of the PON system, the OLT has the functions of centralized bandwidth allocation, control of each ONU, real-time monitoring, operation, maintenance and management of the P...

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04B10/69
CPCH04B10/6933H04B10/69H04B10/27H04B10/60H04J3/1652
Inventor 石良张玉娜李振东
Owner HISENSE BROADBAND MULTIMEDIA TECH