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
CN102298401AActive Publication Date: 2011-12-28SICHUAN XINYISHENG COMM TECH CO LTD
5 Cites 13 Cited by

Patent Information

Authority / Receiving Office
CN ยท China
Patent Type
Applications(China)
Current Assignee / Owner
SICHUAN XINYISHENG COMM TECH CO LTD
Publication Date
2011-12-28

Smart Images

  • Figure 1
    Figure 1
  • Figure 2
    Figure 2
  • Figure 3
    Figure 3
Patent Text Reader

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.
Need to check novelty before this filing date? Find Prior Art

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

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More