cufflinks

The first phase of the plan is to communicate between the French Earth observation satellite SPOT-4 and ESA synchronous data relay satellite "Artemis" the ARTEMIS experiment. Preparatory to the development of the two SILEX equipment, the transfer rate of 50Mbps. 2 sets of equipment will be installed in the SPOT-4 and ARTEMIS satellite. The end of 1996 launched the first SILEX equipment, plans for communication between the LEO-the GAO, the GAO, the GAO orbit, the GAO conducted in-ground communication experiments. The second phase will be communication between the GEO-the GEO link program implemented by the European Data Relay Satellite (DRS) DRS satellite is scheduled for launch in 1999. The good or bad technology which is used to produce 200mw red laser pointer.
ESA is also laser satellite communications technology and optical ground station (OGS) and other aspects of research work, these technologies include high-energy Nd-YAG laser communication equipment, high-speed (greater than 565Mbps) heterodyne and homodyne receiver and a small user receiver . Japan in the mid-1980s began the study of optical space communications. Postal Province Communications Laboratory (CRL), NASDA (NASDA) and senior long-distance Communication Research Institute (ATR) Optical and Radio Communications Research. According to recent studies, mainly to conduct research and experiments in the two free-space optical communication systems, a NASDA support the installation of OICETS (Optical Intersatellite Communication Engineering Test Satellite) satellite system of LUCE (Laser Utilizing Communication Equipment). The customer can know the design or technology of 200mw red laser pointer in advance.
The other is the CRL developed installed in the ETS-VI of the LCE (Laser Communication Equipment) system. NASDA (NASDA) research and development of laser space communications (ILC) system, and plans in the free space station in 1998, the Japanese Experiment Module (JEM) and the Data Relay and Tracking Satellite (DRTS) between ILC system experiments. Another plan is the Laser Communications Engineering Test Satellite (OICETS) program. OICETS plans by Japan and Europe to build a satellite communication link between the synchronous relay satellite launched in 1997 the ARTEMIS in Europe to install a semiconductor laser inter-satellite test device, in OICETS satellite launched in 1998 to install a terminals. And manufacturing process of 200mw red laser pointer is used.
By then, the synchronous orbit satellites (GEO) and low-orbit satellites (LEO) device between the laser satellite communications. NASDA decided to NEC develop OICETS satellite, the satellite is carrying optical terminals, the mass of about 500kg, it will run in the low orbit of 500km. The purpose of the launch OICETS experiment, evaluate and improve the detection, tracking and optical technology and optical test device of the optical space communications. CRL major plans between ground stations and the Engineering Test Satellite "daisy on the 6th of ETS-VI Laser Communications Experiment (LCE). In this experiment, several basic functional tests required by the inter-satellite links, such as high-precision tracking and double necklace Road, optical communication, high-precision height measurement. The manufacturer should try the best to improve the design and technology of Laser Pointers.
Laser communications experiment (LCE) program, test equipment installed on the ETS-VI satellite, the satellite was launched in August in 1994, but because of the booster rocket failure, the ETS-VI satellite is not to enter the pre-GEO orbit, had to running on the elliptical orbit, so the test results did not achieve the desired goal, only a limited test. After repeated efforts, It is reported that Japanese technology experimental satellite in June 1995 with the U.S. atmospheric observation satellite successfully conducted eight minutes of the two-way laser communication; July, Japan also achieved a two-way optical communication between the satellite and ground stations. The emergence of satellite laser communication is a modern information society for high capacity, long-distance, low-cost communication needs of the inevitable results. It is for the more useful and practical application of 200mw red laser pointer.