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Another "neck jam" problem solved, the first home-made 110GHz electro-optic modulator was successfully developed.

2024-04-25 Update From: SLTechnology News&Howtos shulou NAV: SLTechnology News&Howtos > IT Information >


Shulou( Report-- December 13 news, according to Wuhan Donghu national independent innovation demonstration zone "China Optical Valley" official account news, recently, the first domestic 110GHz electro-optic intensity modulator product in the National Information Optoelectronics Innovation Center (NOEIC) successfully developed, and has been verified and ordered by a number of industrial customers.

▲ image source "China Optical Valley" official account, the following introduction, the modulator with domestic thin film lithium niobate chip as the core, can work in C and L band, with ultra-high bandwidth, ultra-high speed, low chirp, low driving voltage, high linearity and other characteristics, its 3dB bandwidth is as high as 110GHz, it is the first electro-optic modulator whose bandwidth exceeds 110GHz, and the key technical indicators reach the international advanced level. It will be widely used in broadband optoelectronic information systems such as optical communication, optical interconnection, optical computing, optoelectronic measurement, microwave photons and so on.

The main function of high-speed electro-optic modulator is to convert electrical signals into optical signals, which is an indispensable core device of optoelectronic system. With the rapid development of optoelectronic information industry, the requirements for the bandwidth and speed of electro-optic modulators are increasing.

Wuhan Donghu National Independent Innovation demonstration Zone said that at present, China can only develop and produce electro-optic modulators with bandwidth within 40GHz, while electro-optic modulators whose bandwidth exceeds 67GHz are monopolized by a small number of companies, such as the United States and Japan, and are expensive, which seriously threatens the independent development of the industry.

In order to make up for the deficiency of China's high-end optoelectronic devices supply chain as soon as possible, the National Information Optoelectronics Innovation Center has sharpened its sword in three years, and has conquered and mastered the key technologies such as ultra-high bandwidth modulator chip, RF high-performance transmission substrate, high-frequency electrical interconnection welding process, shell cavity resonance suppression and so on. All the core chips and components have been localized, and three high-band optical intensity modulators 40GHz, 60GHz and 90GHz have been released this year. Recently, the first localization of 110GHz electro-optic intensity modulator has been successfully realized, which fills the domestic gap. This series of products have been verified and ordered by a number of industrial users and research institutes in China, which will effectively alleviate the "neck jam" problem of high-end optical modulators.

▲ NOEIC Electro-optic Modulator products measured Optical signal Eye Map query learned that the National Information Optoelectronics Innovation Center was approved by the Ministry of Industry and Information Technology on October 31, 2017 and settled in Wuhan "China Optical Valley", committed to breaking through the key common technological bottlenecks of the industrial chain, promoting the transformation of achievements, and supporting the development of a new generation of information technology industry.

▲ National Information Optoelectronics Innovation Center official website National Information Optoelectronics Innovation Center is a new type of innovation carrier established in the form of "company + alliance". It is claimed to be built by enterprises, scientific research institutes, universities, industrial funds and other innovative subjects with strong scientific research strength, rich resources and strong industrial capacity in the field of information optoelectronics in China.

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