A long-distance sfp+ optical module

A long-distance, optical module technology, applied in non-electric variable control, instrument, temperature control and other directions, can solve the problems of reduced optical device life, module performance degradation, key device damage, etc., to reduce power consumption, improve receiving sensitivity, Good long-distance signal transmission effect

Active Publication Date: 2011-12-28
SICHUAN XINYISHENG COMM TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

If the power consumption is large and the heat cannot be dissipated well, the internal temperature of the SFP+ optical module will be high, the performance of the module will be reduced, and the life of the optical device will be reduced. In severe cases, the key components of the optical module will be damaged due to excessive temperature.

Method used

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  • A long-distance sfp+ optical module
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  • A long-distance sfp+ optical module

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Embodiment Construction

[0046] All features disclosed in this specification, or steps in all methods or processes disclosed, may be combined in any manner, except for mutually exclusive features and / or steps.

[0047] Any feature disclosed in this specification (including any appended claims, abstract and drawings), unless expressly stated otherwise, may be replaced by alternative features which are equivalent or serve a similar purpose. That is, unless expressly stated otherwise, each feature is one example only of a series of equivalent or similar features.

[0048] Such as figure 1, the SFP+ optical module in the present invention includes a microcontroller unit, a power supply, a laser drive unit, a limiting amplifier unit, an optical transmission interface assembly, and an optical reception interface assembly. In addition, a thermoelectric cooler, an APD high-voltage control unit and corresponding DA converter and AD converter, the controller unit is used to control and monitor the laser drive ...

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Abstract

The invention, which relates to the fiber optic communication field, discloses a long-distance small from-factor pluggable plus (SFP+) optical module. And the invention aims at providing a long-distance SFP+ optical module with low power, wherein the SFP+ optical module enables an internal temperature of the optical module to be reduced. Technical notes of the invention are as follows: an electroabsorption-modulated-laser (EML) laser and driver is employed on an original SFP+ optical module; and a thermoelectric refrigerating unit, an avalanche photo diode (APD) high voltage control unit, and a corresponding temperature collection circuit and a DA converter are added; and a controller unit is used for controlling and monitoring a laser driving unit, a limiting amplifier, the thermoelectric refrigerating unit and the APD high voltage control unit. The controller unit controls the thermoelectric refrigerating unit and the APD high voltage control unit respectively according to temperatures of an optical sending interface assembly and an optical receiving interface assembly, so that a working temperature of a laser in the optical sending interface assembly is stable, thereby outputting am optical signal with a stable wavelength; besides, according to a working temperature of the optical receiving interface assembly, compensation is carried out on a reversed breakdown voltage of the APD, thereby improving a reception sensitivity.

Description

technical field [0001] The invention relates to the field of optical fiber communication, in particular to an SFP+ optical module supporting long-distance signal transmission. Background technique [0002] Explanation of technical terms in the text: [0003] ADC (Analog to Digital Converter) analog to digital conversion [0004] APC (Automatic Power Control) automatic power control [0005] APD (Avalanche Photo Diode) Avalanche Photodiode [0006] CWDM (Coarse wavelength division multiplexing) sparse wavelength division multiplexing [0007] DAC (Digital to Analog Converter) digital to analog conversion [0008] DWDM (Dense wavelength division multiplexing) dense wavelength division multiplexing [0009] EML (Electroabsorption-Modulated-Laser) Electroabsorption Modulated Laser [0010] ROSA (Receiver Optical Sub-Assembly) optical module interface assembly [0011] SFP (Small From-Factor Pluggable Plus) Small Form Factor Pluggable Optical Module [0012] SFP+ (Small F...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G05D23/20
Inventor 宛明黄小雷
Owner SICHUAN XINYISHENG COMM TECH CO LTD
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