[scientific and technological achievements] laser

Laser is another major invention after nuclear energy, semiconductors, and computers in the 20th century. It is widely used in industrial manufacturing, biomedicine, military and other fields due to its good monochromationality, directionality, and brightness. The fastest knife, the most accurate ruler, and the brightest light ".
A laser is a laser generating device, which is mainly composed of a pump source, a gain medium, and a resonant cavity. The pump source is an excitation source of the laser, the resonant cavity is a loop between the pump light source and the gain medium, and the gain medium refers to a working substance that can amplify light. In the working state, the gain medium absorbs the energy provided by the pump source and outputs the laser through the resonant cavity oscillation mode selection.
This issue of "Introduction of Scientific and Technological Achievements" is brought to you by our hospital.Laser Engineering Research InstituteThe series of research and development products---Laser. Please follow the footsteps of Xiaobian and learn about it together ~

 

science and technology research and development]

The application of lasers covers almost all industrial fields. Except for light industry, automobile, aerospace, power and energy industries, it is gradually expanding to the field of fine and micro processing, which has strongly promoted the development of electronic manufacturing, integrated circuit, communication, machinery, medical treatment, dentistry, cosmetic equipment and emerging applications.
With the development of laser processing technology, the application range of lasers gradually covers from macro processing applications to more subtle process links. The effective integration of laser light source and precision optical design, visual image processing, motion control, light-material mechanism and other technologies is the key to promote the development of micro-processing applications, and will become one of the supporting technologies in many industries. Due to technological progress, technical confidentiality and personalized production needs, more customers will choose customized products to promote the intelligent production process, customized lasers will also become the future trend of the laser field.
　　Laser Engineering Research Institute focuses on the development of optical electronics, and is a leading laser design and development manufacturing unit in China.Since its establishment, it has undertaken a large number of national key scientific and technological projects, and a number of products have been handed over to local enterprises for production. Key technical indicators such as product power, beam quality, environmental adaptability, and reliability are all at the domestic first-class level. Relying on years of R & D experience accumulation, a full set of reliable testing equipment and strict production process control, we continue to develop technologies and products with independent intellectual property rights, and are committed to providing global customers with first-class products and corresponding technical services.

 

science and technology innovation]

01 High Power Picosecond Lasers: J Series-Industrial Picosecond Lasers
The J series offers all-solid-state picosecond lasers.Output wavelength from deep ultraviolet to near infrared band optional: 213nm / 266nm / 355nm / 532nm/1064nm. The laser adopts industrial design, compact and sturdy structure, simple and universal interface, suitable for system integration. The output laser pulse width is ps magnitude, and the heat affected zone (HAZ) of the processed material is extremely small to ensure the high quality process effect.

 

 

Application areas

 

• Glass, sapphire and other brittle transparent materials processing;
• Laser precision micro-machining, micro stereolithography;
• Semiconductor wafer forming process;
• Display, OLED cutting;
• Laser LIFT-OFF process;
• Ceramic, diamond cutting.

 

02 High-power nanosecond laser: K series-industrial nanosecond laser
The K Series provides solid-state laser light sources with nanosecond pulse widths.
Using CombinedGuiding technology, the laser solves the problem of beam quality deterioration under high power while realizing power expansion, effectively prevents the damage resistance of ultraviolet crystal, improves the frequency conversion efficiency, and realizes the stable ultraviolet laser output of more than 40W power. The K Series is a versatile tool that can be used in a variety of manufacturing processes.

 

 

Application areas

 

• Cutting, punching and marking of glass materials;
• Silicon material micro-machining, silicon wafer cutting;
• Antibacterial marking of medical devices;
• PCB punching and cutting;
• HDI high density interconnect;
• Processing of ceramic materials.

 

03 high energy solid state laser: S series -- high energy laser for equipment
The S series offers all-solid-state nanosecond lasers.
The output wavelength covers the deep ultraviolet to mid-infrared band: 213nm / 266nm / 355nm / 532nm / 1064nm / 2100nm, which can achieve a large energy laser output of more than 80mJ. Laser pulse width, frequency, energy can be customized, and can choose multi-wavelength output at the same time. S series lasers are compact, small in size, simple and versatile in interface, and suitable for system integration.

 

 

Application areas

 

• PLIF planar laser fluorescence detection;
• Combustion diagnostic systems, laser imaging;
• Spectral measurements;
• Laser remote sensing.

 

 

04 Radar solid-state lasers: Q series-advanced radar lasers
The Q Series is a compact high-energy high-beam quality nanosecond laser source for advanced radar applications.
The Q series uses CombinedGuiding technology to solve the problem of deterioration of high-energy laser beam quality, and realizes laser output with high energy (fundamental frequency light 40mJ), excellent beam quality (M2<1.5), high repetition frequency (2kHz) and short pulse (<5ns). It is an ideal light source for advanced long-distance radar.

 

 

Application areas

 

• Long-range lidar/detection range 0~1000km.

 

Laser Engineering Research Institute
The Laser Engineering Research Institute of Tianjin High-end Equipment Research Institute of Tsinghua University was established in July 2015. It originated from Tsinghua's 20 years of technology accumulation and focused on the development of optical electronics. It is a leading laser design, R & D and manufacturing team in China. The Laser Engineering Research Institute has a team composed of highly educated and high-quality talents. The team is composed of a number of doctors, masters and experienced senior engineers from Tsinghua University. Its leaders and technical backbones graduated from Tsinghua University, Chinese Academy of Sciences and other famous universities. The main characteristics of the team are strong research and development ability and fast development speed. Team members are young and energetic, innovative and brave to meet challenges. Team members with a good sense of social responsibility and excellent technical research and development capabilities to enable the Institute to maintain competitiveness in the fierce market competition, to achieve rapid and stable development.
The Institute adheres to the working principles of integrity, standardization and efficiency, wins the market with technology, obtains reputation with technical services, and wholeheartedly provides high-quality, efficient and fast services for the majority of customers. Facing the future, we insist on independent innovation!

 

Technical docking and business negotiation
Contact: Liu Lianhui
Telephone: 18722399319
E-mail: liulh@tsinghua-tj.org

 

Source | Laser Engineering Institute
Editor | Wang Xiao
The final interpretation of the above related technologies belongs to the Institute of Laser Engineering.