Optical module

A technology of optical modules and lasers, which is applied in the field of optical modules, can solve the problems of increasing the cost of optical modules, and achieve the effect of wide operating temperature range and cost reduction

Active Publication Date: 2013-02-13
HISENSE BROADBAND MULTIMEDIA TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At present, in order to allow the optical module to work in a wider temperature range, a laser based on TEC (Thermoelectric cooler, thermoelectric cooler) technology is used; however, this greatly increases the cost of the optical module

Method used

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Embodiment Construction

[0034] In order to make the object, technical solution and advantages of the present invention clearer, the present invention will be described in further detail below with reference to the accompanying drawings and preferred embodiments. However, it should be noted that many of the details listed in the specification are only for readers to have a thorough understanding of one or more aspects of the present invention, and these aspects of the present invention can be implemented even without these specific details.

[0035] As used herein, terms such as "module" and "system" are intended to include computer-related entities such as, but not limited to, hardware, firmware, a combination of hardware and software, software, or software in execution. For example, a module may be, but is not limited to being limited to being, a process running on a processor, a processor, an object, an executable, a thread of execution, a program, and / or a computer.

[0036] In the optical module ...

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Abstract

The invention discloses an optical module comprising a laser emitting unit, an MCU (Microprogrammed Control Unit) and a heating control circuit, wherein the laser emitting unit comprises a laser and a drive circuit of the laser; the drive circuit drives the laser to emit an optical signal according to a digital differential electric signal received by the optical module; a heating resistor is arranged in the laser;, the MCU is used for obtaining a temperature value detected by a temperature sensor and then determining a voltage output value corresponding to the temperature value; and according to the determined voltage output value, a corresponding voltage is output to the control end of the heating control circuit from a DAC (Digital-to-Analog Converter) output port of the MCU to control current flowing by the heating resistor. The heating resistor is built in the laser, the MCU is used for controlling the current flowing by the heating resistor through the simple heating control circuit, and no expensive laser with a built-in TEC (Thermoelectric Cooler) is used for controlling the temperature of the laser, so that the cost of the optical module is greatly reduced.

Description

technical field [0001] The invention relates to optical fiber communication technology, in particular to an optical module applied in a coarse wavelength division multiplexing system. Background technique [0002] With the wide application of optical communication technology in the network, various optical networks are applied to various fields. For example, optical networks such as GBE (Gigabit Ethernet), EPON (Ethernet Passive Optical Network, Ethernet Passive Optical Network), and GPON (Gigabit Passive Optical Network, Gigabit Passive Optical Network) are applied in various fields. In addition to the usual application environment, it is also necessary to apply optical communication technology in some extreme temperature environments, such as aviation, navigation and other environments. [0003] The optical module is indispensable in the optical network as a device for converting between electrical signals and optical signals; however, the work of the optical module is of...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04B10/40H04J14/02
Inventor 丁良云张华李绍波
Owner HISENSE BROADBAND MULTIMEDIA TECH
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