Research Institutes

The Institute of Information Optoelectronic Technology is subordinate to the first-level discipline of electronic science and technology in the Department of Electronic Engineering. Its second-level discipline Physical Electronics was selected as a key discipline of the State Education Commission in 1987, and was rated as a key discipline of the Ministry of Education twice in 2002 and 2007. In 1996, the construction of key disciplines won the first prize of Beijing Teaching Achievements. The Institute now has 27 faculty members, including 10 professors/researchers (1 academician of the Chinese Academy of Sciences, 2 Cheung Kong Scholar chair professors), 11 associate professors/associate researchers and 7 lecturers/engineers.

Taking the information optoelectronics and optoelectronic technology as the discipline development, relying on the scientific research strength of the National Information Science and Technology Laboratory and faced with the prospect of the photoelectron playing an important role in the information society of the 21st century, the Institute of Information Optoelectronic Technology is committed to cultivating high-level special talents in the information optoelectronics research field, who have solid theoretical foundation, abundant knowledge, high innovation ability and are good at applying high and new technologies to the construction of the four modernizations in China. There are currently 16 undergraduate courses and 14 graduate courses that the teachers in the Institute are responsible for setting up. The Institute is provided with the postdoctoral research station and about 3-4 postdoctoral fellows begin to work at the postdoctoral research station every year. Nearly 20 doctoral students and more than 20 master students are recruited every year.

Information optoelectronic technology is a high and new technology that incorporates both photonic technology and electronic technology. Optoelectronic devices, integrated photonic devices, optical fiber communications and optical network, optical display, optical fiber sensing and others are important fields of the development of information optoelectronic technology. The scientific research work of the Institute has extensively covered the above research fields, and 6 research directions have been currently formed:

1. Integrated Optoelectronic and Photonic Devices

Relying on the complete process conditions and deep research foundation in the field of integrated optoelectronic devices, the research on integrated optoelectronic devices including new semiconductor lasers, high-speed optical modulators and optical detectors, photonic crystal fibers and fiber grating devices and their applications in information networks is carried out. It developed 40 Gb/s high-speed integrated optical source transmitter module independently and successfully in China for the first time, marking a new level of research of high speed optoelectronic integrated devices in China. Meanwhile, it has made a series of innovations in multi-channel dispersion compensation based on fiber bragg grating, PMD compensation, OCDMA codec, and dispersion compensation photonic crystal fiber.

40 Gb/s DFB+EA integrated optical source

2. Micro-nano Structured Photoelectric Materials and Devices (http://nano-oelab.ee.tsinghua.edu.cn)

Facing the development trend of optoelectronic technology towards integration and micro-nano, carry out a research on micro-nano structured optoelectronic materials and devices, including metal surface plasmons, semiconductor photonic crystals and quantum devices based on micro-nano structure. It has innovatively proposed and realized an integrated sensing chip with high-sensitivity refractive index (biochemical) based on a long- and short-range SPP coupled structure. It has developed a slow light transmission photonic crystal waveguide that can realize the speed of light below 1/80 in vacuum. It has realized the generation of low-noise correlated dual photon by use of nano-silicon waveguides for the first time, and has successfully realized the single-photon source prototype device by use of coupled structure of single quantum dots and microcavities.

3. High-speed High-capacity Optical Communication System and Optical Network

It has achieved rich research achievements in important research directions such as high-capacity wavelength division multiplexing optical fiber communication system, ultra-high-speed optical communication and optical signal processing and optical network. These achievements involve wavelength division multiplexing high-speed high-capacity optical fiber transmission technology, intelligent optical network key technology, optical packet switching network technology, etc. 40×40 Gb/s DWDM transmission experiment system was built for the first time in China, with the transmission capacity of 1.6 Tb/s;  The research achievements in WDM optical network dynamic routing and signaling were adopted by the Telecommunication Standardization Sector of the International Telecommunications Union; Meanwhile, a series of innovation achievements have been achieved in ultrashort impulse sources, single-channel 100 and 160Gb/s systems based on OTDM, and all-optical regeneration technology.

Intelligent switched optical network layered routing Experiment Bed

100 Gb/s signal source

4. Microwave Photonics

The researches on optical generation methods of microwave signals, optical domain microwave amplification technology, optically controlled microwave beam forming networks, and core components of microwave photonics have been carried out in the field of microwave photonics. The first 60 GHz RoF demonstration system was built in China to demonstrate WDM hybrid transmission and resource allocation of broadband optical fiber access system and wireless access system; The 4-channel 5-bit optical beam forming network prototype based on broadband optical source and photonic crystal fiber has been developed, and a series of innovation achievements in delay jitter suppression and SNR improvement have been achieved; The low phase noise millimeter wave signal generation technology based on semiconductor integrated difference frequency light source has been proposed and realized.

5. Optical Fiber Sensing Technology and Application

As for the new optical fiber sensing mechanism and optical fiber sensing engineering application, the researches on sensing mechanism and application of photonic crystal fiber, sensing system based on interference optical fiber sensing technology and network technology, optical fiber acoustic detection engineering application technology, distributed optical fiber vibration sensing mechanism and engineering application technology, fiber grating sensing technology in complex environment, and optical fiber trace gas sensing technology have been carried out. The developed trailing cable optical fiber detector and optical fiber acceleration sensor technology is at the leading domestic level; a series of innovations have been achieved in multiplexing technology of optical fiber perimeter security alert, optical fiber vector sensor and interference optical fiber sensor.


Optical fiber detector and seismic streamer

6. Solar Energy Application and Semiconductor Lighting for New Energy, Energy Conservation and Emission Reduction

It has taken the lead in developing and perfecting all-glass solar collector tubes, has developed relevant national and industrial standards, and has made great contributions to the development of China's solar water heater industry. Current research emphases include the field of medium-high temperature solar heat utilization and new solar cells. Based on national strategic needs of energy conservation and emission reduction, the researches on key technologies of GaN-based high-brightness LED material epitaxy and tube core preparation, device packaging and system-level applications for semiconductor lighting have been carried out. The new high-efficiency LED road lighting source is in the international best level rank in light distribution, energy efficiency, glare control, etc., and huge economic and social benefits have been brought through industrial technology cooperation and patent technology transfer.

LED street lamp based on non-imaging optics and its application

The Institute of Information Optoelectronic Technology has established intradisciplinary and interdisciplinary relations with famous universities and research units in related fields at home and abroad. In the Department, the Institute of Optical Fiber Communication has been established with the communication major. Nationally, it has cooperated with the Institute of Semiconductors, Chinese Academy of Sciences and Jilin University in building the national key joint laboratory of integrated optoelectronics, while internationally, it has maintained close personnel and academic exchanges with the University of Southern California, the University of Maryland, the University of Tokyo, the Technical University of Denmark, the Korea Advanced Institute of Science and Technology, and Lucent Bell Laboratory. These academic exchanges have created good conditions for this discipline to achieve the goal of aligning with international standards and building a world-class university.




Institute of Information Optoelectronic Technology