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Tunable regulating light transmitting module and scaling and regulating method thereof

A technology of optical transmission and direct adjustment, which is applied in the direction of lasers, phonon exciters, laser components, etc., can solve the problem that the online adjustment of working wavelength cannot be realized, and the optical transmission module cannot meet the static application and quasi-dynamic reconfigurable application of the network system , Inability to achieve online tunability and other problems, to achieve the effect of flexible and concise control mode, automatic production line, rapid and comprehensive detection

Active Publication Date: 2007-03-21
ZTE CORP
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Problems solved by technology

However, the biggest disadvantage of the traditional optical transmission module is that although the optical transmission module with the traditional structure can make the module work on a certain wavelength of multiple channels by setting the potentiometer, once the working wavelength is determined in the production stage, the traditional module The online adjustment of the working wavelength cannot be realized, that is, the function of static or quasi-dynamic wavelength setting cannot be well realized according to the needs of the system configuration, especially after the emergence of a dynamically reconfigurable network system, the online tunable optical transmission module Technology is one of the core and key technologies of this system
[0009] To sum up, the optical transmission module with the traditional structure cannot realize the online tunable function by using the traditional cooled direct modulation laser
With the development of optical communication technology, new laser technology has appeared, but the optical transmission module with traditional structure cannot meet the requirements of static application and quasi-dynamic reconfigurable application of network system

Method used

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  • Tunable regulating light transmitting module and scaling and regulating method thereof
  • Tunable regulating light transmitting module and scaling and regulating method thereof
  • Tunable regulating light transmitting module and scaling and regulating method thereof

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Embodiment Construction

[0060] Refer to Fig. 4 for the functional block diagram of the tunable optical transmission module of the present invention, the module uses a tunable direct modulation laser, has an automatic optical power control circuit to adjust and stabilize the output average power of the laser, and has a direct modulation circuit to adjust the laser Excellent extinction ratio and stable modulation signal for the laser, with an automatic temperature control circuit for adjusting the output wavelength of the laser and stabilizing the temperature of the laser die, thereby stabilizing the output wavelength of the laser.

[0061] Compared with the traditional optical transmission module, the present invention is characterized in that it uses a non-volatile digital potentiometer to adjust the energy of each property of the module; uses a micro-control unit MCU to realize the shutdown control of the laser and automatic detection of performance energy; uses a micro-controller The EEPROM memory i...

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Abstract

A light transmission module of tunable positive-governing type consists of tunable positive-governing laser, positive-governing control circuit, automatic light power control circuit, automatic temperature control circuit, laser switch control and performance detection circuit. It is featured as enabling to realize parameter calibration, on-line regulation and performance parameter diagnosis of digitalization module by leading in micro control unit and nonvolatile digital potentiometer.

Description

technical field [0001] The invention relates to the technical field of digital optical fiber transmission systems, in particular to a tunable direct-adjustable optical transmission module and a calibration and adjustment method thereof. Background technique [0002] With the continuous development of optical communication technology, optical transmitting modules and optical receiving modules have been more and more widely used in optical transmission systems, which play the role of electrical / optical and optical / electrical conversion, and their performance is important to optical transmission system indicators. influences. The telecommunication equipment sends the high-speed electrical signal to the optical transmission module after processing, and the optical transmission module modulates the electrical signal to the optical signal output by the laser through the modulator, so that the signal can be transmitted in the optical domain. Medium and long-distance optical transm...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04B10/145H04B10/08H01S5/00H04B10/548H04B10/564
Inventor 张赟邓烈
Owner ZTE CORP
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