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Huawei applies for a patent on an electro-optic modulator to achieve good impedance matching to improve the efficiency and bandwidth of electro-optic modulation.

Release time：2023-12-14

According to the announcement of the State Intellectual Property Office, Huawei Technologies Co., Ltd. applied for a project called "an electro-optic modulator and related equipment", the public number is CN117170122A, and the application date is May 2022.

According to the announcement of the State Intellectual Property Office, Huawei Technologies Co., Ltd. applied for a project called "a kindelectro-optic modulatorand Related Equipment ", Publication No. CN117170122A, filed May 2022.

The patent summary shows that the embodiment of this application discloses an electro-optic modulator and related equipment to achieve good impedance matching, thereby suppressing crosstalk between positive and negative electrodes and improving.electro-optical modulationefficiency and bandwidth. The embodiment of this application provides.electro-optic modulatorThe transmission line includes a positive electrode and a negative electrode; one end of the positive electrode is connected to a signal input end, and the other end is connected to a target resistor through a first matching resistor; one end of the negative electrode is connected to the signal input end, and the other end is connected to the target resistor through a second matching resistor; the first matching resistor and the second matching resistor are used for matching the odd mode characteristic impedance of the transmission line. The optical waveguide includes a first branch and a second branch, where PN junctions on the first branch and the second branch are respectively coupled to a positive electrode and a negative electrode; and two ends of the first branch and two ends of the second branch are connected to each other. The target resistance is used for matching the even mode characteristic impedance of the transmission line, and suppressing the reverse electric signal from the first matching resistance and the second matching resistance to the signal input terminal.

This article originates from the financial community.

Who has mastered the DFB laser dominance? China DFB laser layout analysis!

North Institute of Technology has made new progress in the dark current suppression technology of infrared photodetectors.

Who has mastered the DFB laser dominance? China DFB laser layout analysis!

North Institute of Technology has made new progress in the dark current suppression technology of infrared photodetectors.

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Heavy release-the first domestic 110GHz electro-optic modulator successfully developed [reprinted]]

Recently, the first domestic 110GHz electro-optical intensity modulator product was successfully developed in the National Information Optoelectronics Innovation Center (NOEIC), and was verified and ordered by many industrial customers. The modulator takes the domestic thin film lithium niobate chip as the core and can work in C and L bands. It has the characteristics of ultra-high bandwidth, ultra-high speed, low chirp, low driving voltage, high linearity and so on. Its 3dB bandwidth is as high as 110GHz. It is the first electro-optic modulator product with a bandwidth exceeding 110GHz in China. Its key technical indicators have reached the international advanced level, it will be widely used in optical communication, optical interconnection, optical computing, photoelectric measurement, microwave photonics and other broadband optoelectronic information systems.

Who has mastered the DFB laser dominance? China DFB laser layout analysis!

Dec 14,2023

Huawei applies for a patent on an electro-optic modulator to achieve good impedance matching to improve the efficiency and bandwidth of electro-optic modulation.

Dec 14,2023

North Institute of Technology has made new progress in the dark current suppression technology of infrared photodetectors.

Dec 14,2023

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