The new production line of green laser pointer

The equivalent of one day LISA interferometer, laser interferometry to measure relative distance changes. MS-LRF is a Japan Aerospace Research Division (ISAS) plans for the micro-satellite formation in the inter-satellite laser measurement system state measurements. Since the narrow laser beam, using the traditional laser radar satellites can not be observed simultaneously, so the formation of satellites. Require the use of scanning laser detection equipment, rotating the device by scanning multiple target search and measurement. MS-LRF is based on micro-mechanical technology, dual-axis scanning system (Figure 4). The new production line of green laser pointer will greatly increase the output of green laser pointer .
The system consists of optical scanning devices, micro-lens, beam splitter, laser diodes, avalanche photodiodes, used to drive the piezoelectric scanner gear, drive circuit and signal processing loop composition. MS-LRF measurement principle: laser diodes, respectively, by spectroscopic and laser scanning micro-mirror reflection plane after the shooting at the target. Received by the target by the laser part of the launch angle reflector. Return along the original path. And eventually be sensitive avalanche photodiodes to detect. Formation of satellites used in MS-LRF requires very high accuracy and frame rate, so the use of a continuous wave laser phase-ranging. For 0.1> 10km distance between the star, the semiconductor laser 5kHz and 1MHz were used to modulate two frequencies. The director will be directly in charge of the new production line of led flash light.
Measurement accuracy of 1m. In summary, laser ranging technology in space has been used widely. Because of its all-weather, precision, interference, and other unique advantages of miniaturization, laser ranging and more attention, has become the field of space exploration - an important technical means, in the military and industrial applications has a very high value. Engineering applications, especially as the needs of aerospace applications, laser ranging technology is constantly evolving and progress. Laser ranging device is now moving to a small (small size, low power consumption), precision (high precision), far (far measurement range), fast (short measuring time, high repetition rate) and direction. Laser ranging technology easily and other detection technology integration, resulting in more powerful, multi-detection system. The new manufacture base of green laser pointer will be equipped with the advanced technology.
In recent years, the study of laser ranging technology attaches great importance to many domestic universities and research institutes are carrying out this research and engineering work. But space laser ranging is a very complex technology, there are still many key technologies to be resolved, so the field of application for space exploration is not much research in the field of aerospace and even less real practical application. Chang-e lunar satellite laser altimeter used in China is currently the only set of the first set of laser ranging equipment into space. The field of space exploration as an important technology, accelerate the development of space technology in the field of laser ranging applied research work is very necessary and needed. The new manufacture base of green laser pointer draws a lot of attention.
In addition, avalanche photodiodes, high-frequency current modulation of laser technology, laser ranging and critical components and technology is still lagging behind the international advanced level, domestic laser ranging equipment ranging accuracy, reliability, and the international advanced level, there are a gap. So. The laser ranging method in research and applications, but also in some of the key components, critical technology to carry out focused research, which for the promotion of domestic technological progress and laser ranging in the field of space applications is necessary and reliable. Can say for sure. In the near future, laser ranging technology in the military and the national economy will play an increasingly important role. The testing center of green laser pointer has five floors.