On March 4, the U.S. Air Force Research Laboratory at Wright-Patterson Air Force Base in Ohio awarded a fixed-price R&D contract with a total value of $8.107308 million in La Jolla, California, to develop a chip-size “optical phase”. Array and Lidar” system. It is understood that the system utilizes the results of the first phase…
Month: September 2020
The interaction of water and light emits laser pointer for the first time
The Technion-Israel Institute of Technology issued an announcement on the 29th, stating that for the first time, researchers at the university have proved through experiments that the interaction of water and light can also emit laser light, building a “bridge” between two research fields that were previously considered unrelated. The new “water-wave laser” can be…
The future development of ultra-fast laser pointer technology
With the rapid development of laser technology, ultra-fast lasers have appeared in people’s sight. It has unique ultra-short pulse and ultra-strong characteristics, and can obtain extremely high peak light intensity with lower pulse energy. The emergence of ultra-short pulse chirp amplification technology has greatly improved the intensity of ultrafast green laser pointer. Unlike traditional long-pulse lasers…
Processing technology will usher in new and rapid development opportunities laser pointer
In the process of interaction between ultra-fast ultra-strong laser and matter, as the laser intensity continues to increase, various nonlinear effects continue to increase, and phenomena such as high-order harmonics, above-threshold ionization, tunneling ionization, etc. appear, and the cycle magnitude The ultra-short laser pulse loses the periodic characteristics of the wave phenomenon, leading to a…
Explain in detail the development history and key technologies of ultra-fast laser pointer
In 1960, the first laser, the ruby laser, opened the door for the study of ultrafast processes. In 1961, Q-switching technology realized the first short laser pulse output with a pulse width of tens of nanoseconds on a ruby laser. The pulse width of the laser pulse was even shortened to 10 nanoseconds. The pulse…
Important technology of laser pointer that generates ultrashort pulses
The so-called Q-switching refers to the technology of adjusting the Q value of the laser. In the initial stage of laser pumping, the Q value of the resonator is adjusted to a very low level, so that the laser does not meet the oscillation conditions temporarily. When a high particle number density is obtained under…
The shortest pulse laser pointer that can be obtained under the experimental conditions
The Bragg mirror is composed of alternating Si02 and Ti02 coatings, and the refractive index of the coating changes stepwise. Such a structure introduces a negative dispersion relationship. The front of the mirror is like a transmission grating that produces partially reflected light, while the back of the mirror produces Bragg reflection. In order to…
What is a single-frequency fiber laser pointer?
Single-frequency fiber laser: It has the advantages of long coherence and narrow linewidth and plays an important role in many special fields. Since the advent of the first ruby laser in 1960, laser technology has undergone many changes, and now it has become a covering industrial processing, communications, medical, military Important technologies in many fields….
Four key performance indicators of single-frequency laser pointer
Due to the narrow line width and low noise of the single-frequency laser, it means that it is more sensitive to high-precision vibration, and the long coherence length ensures the accuracy of long-distance sensing. Therefore, the single-frequency laser has high precision/high sensitivity/long distance Sensing systems, next-generation communication technology, coherent technology, remote sensing technology, coherent lidar…
Market status and application prospects of single-frequency laser pointer
At present, there are no products with single-frequency semiconductor lasers with a linewidth lower than 1kHz. Because single-frequency fiber lasers have a long cavity length, and the key component-fiber gratings are very sensitive to temperature and vibration, which affects wavelength stability and frequency The control of drift is a challenge. It is reported that the…