Dual-rate DML device with built-in signal calibration circuit, module and signal calibration method

A technology for calibrating circuits and calibration methods, which is applied in circuits, electrical components, electromagnetic transmitters, etc., can solve problems such as the degradation of laser chip output characteristics, and the impact of signal transmission and extraction that cannot be ignored, so as to reduce output pins and improve heat dissipation Performance, Effects of Power Consumption Reduction

Active Publication Date: 2017-08-01
GUANGXUN SCI & TECH WUHAN
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0004] However, since the modulation signal of the DML laser is directly applied to the laser chip, the changing input current will cause the output characteristics of the laser chip to deteriorate. The higher the frequency of the change, the more obvious the deterioration. In the era before 40G and 40G, this Degradation does not affect the transmission and extraction of signals, but in the era of 100G, the impact of this degradation on signal transmission and extraction cannot be ignored

Method used

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  • Dual-rate DML device with built-in signal calibration circuit, module and signal calibration method
  • Dual-rate DML device with built-in signal calibration circuit, module and signal calibration method
  • Dual-rate DML device with built-in signal calibration circuit, module and signal calibration method

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Embodiment

[0038] In this embodiment, the signal calibration component is built into the device, and a signal calibration function is added, and a highly integrated multi-stage amplifier chip and a balanced driver are used to calibrate the degraded signal.

[0039] figure 1 It is a structural block diagram of the signal calibration circuit placed in different positions. The chip 6 is located inside the device. If the signal calibration component is built in the device, the distance between the signal calibration component 4 and the chip 6 can be effectively reduced, which is conducive to improving the impedance matching degree of high-frequency signals, and finally improving both 25Gbps and 28Gbps. The output signal quality under different rate conditions.

[0040] The position of the components in the device of the present invention is as Figure 2-3 shown. The independent temperature control element 10 is placed at the bottom of the tungsten-copper shell 1, and the tungsten-copper h...

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Abstract

The invention relates to a dual-rate DML device, a module and a calibration method, which belongs to the technical field of optical communication. The invention particularly relates to the dual-rate DML device with a built-in signal calibration circuit, the module and the calibration method. According to the invention, the signal calibration circuit is added into the device; PD pre-configuration is realized through a novel spectral structure; the control structure of a sequence-sharing multi-channel serial signal is used to feed back a monitoring signal to an electric drive to adjust drive current; the problem of crosstalk between backlight monitoring is reduced; and high-quality signal output under 25Gbps and 28Gbps dual modulation frequency is realized.

Description

technical field [0001] The invention relates to a dual-rate DML device, a module and a calibration method, belonging to the technical field of optical communication, and in particular to a dual-rate DML device, a module and a calibration method with a built-in signal calibration circuit. Background technique [0002] With the continuous improvement of global bandwidth demand, the continuous expansion of optical communication industry applications such as data centers and security monitoring, and the large-scale construction of backbone networks and access networks, the optical module industry has ushered in new market opportunities. Especially in recent years, with the rise of cloud computing, video applications, Internet games, social networking and other applications, Internet traffic has doubled exponentially, and routers for the "100G platform" are gradually replacing the original 10G status and becoming a new Core Network. This has become an important driving force for...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04B10/50
CPCH04B10/504H01S5/02415H01S5/06832H01S5/02345H01S5/02469H01S5/0265H01S5/0683
Inventor 徐红春岳阳阳刘成刚宋小平梅雪邹晖张玉安
Owner GUANGXUN SCI & TECH WUHAN
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