Shaanxi Key Laboratory of Optical Information Technology was established in May 2005, based on modern optics, precision instruments, electronics and computer technology, facing the national strategic needs and the needs of science and technology and economic development of Shaanxi Province, mainly researching the new mechanisms and technologies of optical information acquisition, modulation, transmission, processing and display, and their application in modern information technology and national defense high-tech fields. The laboratory is positioned in the international frontier basic and applied basic research, providing forward-looking research results for the development of optical information science and technology in China and cultivating high-level scientific and technological talents.

The laboratory has 36 teachers, including 10 professors, 17 associate professors, 2 associate researchers, 4 assistant professors and 3 postdoctoral fellows, including 1 winner of the National Natural Science Foundation of China Outstanding Youth Fund, 1 distinguished professor of the "Hundred Talents Program" of Shaanxi Province, 1 famous teacher of Shaanxi Province, 1 young science and technology rising star of Shaanxi Province, 1 EU "Marie Curie" scholar, 3 winners of excellent doctoral dissertations in Shaanxi Province, and 1 winner of 100 excellent doctoral dissertations of the Chinese Academy of Sciences. A high-level academic team composed of young and middle-aged academic leaders and outstanding young backbone teachers has been formed.

The laboratory research has an experimental site of 1300 square meters, including 10,000 and 100,000 clean optical laboratories of 480 square meters, sample preparation room of 90 square meters, sample testing room of 100 square meters, laboratory large-scale instruments and equipment more than 150 sets, with a total value of about 30 million yuan, the main instruments and equipment include more than 30 precision optical platforms, femtosecond laser systems, argon ion gas lasers, ultra-continuum spectrum lasers, Verdi lasers and a variety of DFB lasers, optical parametric oscillators, High vacuum electron beam optical film forming machine, high-speed oscilloscope, high-speed CCD, grating spectrometer, fiber grating interrogator, high and low temperature test chamber, high temperature and high pressure reactor, confocal microscope, a variety of digital holographic interferometers independently developed, as well as micro-optical manipulation system and spectral characterization system for micro-nano device processing and testing.

The laboratory is supported by doctoral programs in first-level disciplines in optical engineering and physics. In the past five years, the laboratory has presided over more than 50 national scientific research projects, including the National Major Scientific Research ("973") Program, the National Science and Technology Major Special Project, the National Natural Science Foundation of China Major Scientific Research Instrument Development, Major Research Plan, Instrument Special Project, Key Project, Excellent Youth, Face, Youth Fund and Equipment Pre-research Key and General Project, etc., more than 50 provincial and ministerial projects, more than 50 scientific research funds, more than 50 scientific research funds, and trained more than 400 doctoral and master's students. Nat. Photon.、Nat. Commun.、Nano Lett.、Light、Optica、ACS Photonics、APL Photonics、Nanoscale、Small、Appl. Phys. Lett.、Sensor Actuat. B-Chem.、Opt. Express、Opt. Lett.、Phys. Rev.A、Photon. Res.、J Lightwave Techn.、IEE Photon. Techn. Lett., J Appl. Phys. Appl. Opt. and other important academic journals at home and abroad have published more than 400 SCI papers, and have been authorized more than 40 national invention patents.

The main research directions and research contents include:

1. Optical information technology and system

Propagation and control of light waves in micro-nano photonic structures (silicon-based optical waveguides, lithium niobate optical waveguides, photonic crystals, photonic graphene, surface plasma waveguides, etc.) and preparation and characterization methods of new photonic devices, generation, transmission and regulation of spatial structure light fields and their mechanism of action with micro-nano photonic structures, optical ultrafast process and nonlinear effect in micro-nano photonic structures, application of new micro-nano photonic devices in optical communication and information processing.

2. Optical fiber sensing technology

Preparation method, beam transmission characteristics and coupling mechanism with external field of complex microstructure of optical fiber, optical fiber sensing technology and sensing system for safety monitoring of various pipelines in deep-sea oil and gas development, ultra-high sensitivity sensor based on optical fiber dispersion and optical nonlinear control and its application in underwater information acquisition, optical fiber sensor and sensing technology in flight control system and health monitoring of aero-engine components, multi-parametric and multi-sensor signal demodulation and intelligent networking technology.

3. Photoelectric testing and detection technology

New technologies for optical acquisition of various three-dimensional physical fields and surface shapes, digital holographic measurement and system integration of multi-band, multi-scale and ultrafast physical processes, rapid processing technology of big data optical information, high-frequency laser ultrasonic detection technology for micro-nano-scale defects and photoelectric test systems.

4. New optoelectronic devices

Quantum effects in very small-scale low-dimensional optoelectronic structures and devices, new small-scale, low-power, ultra-high-speed, broad-spectrum optoelectronic devices based on low-dimensional structures and their integration with micro-nano photonic structures, super-resolution and multispectral imaging technologies of sub-wavelength low-dimensional photoelectronic structures, applications of low-dimensional nanomaterials in ultrafast optics, on-chip optoelectronic devices, ultrafast fiber lasers, new micro-nanophotonic devices and photodetector devices, etc.

Laboratory Director: Professor Zhao Jianlin