Title :
Trans-window free space optics transmission system
Author :
Tsujimura, Takeshi ; Yoshida, Koichi ; Kurashima, Toshio ; Mikawa, Masahiko
Author_Institution :
Access Network Service Syst. Labs., NTT, Tsukuba
Abstract :
This paper studies an application of a bidirectional transmission system in which a single-mode optical fibre line and a free-space optics line are directly connected without any photoelectric devices. An optical wireless transmission is realized between both sides of a windowpane passing a laser beam through the pane. An automatic optical-axis alignment system has newly developed to align the laser beam by screw-driven adjustment mechanism. Up to 4 Gbit/s transmission has successfully been achieved with high quality at 1310 and 1550 nm wavelengths.
Keywords :
optical fibre networks; optical links; automatic optical-axis alignment system; bidirectional transmission system; free-space optics lines; laser beam; optical wireless transmission; photoelectric devices; single-mode optical fibre line; size 1310 nm to 1550 nm; trans-window free space optics transmission system; Diode lasers; Fiber lasers; Laser beams; Lenses; Optical collimators; Optical design; Optical devices; Optical fiber networks; Optical fibers; Space technology; alignment; free-space optics; optical axis; single-mode optical fibre; transmission;
Conference_Titel :
SICE Annual Conference, 2008
Conference_Location :
Tokyo
Print_ISBN :
978-4-907764-30-2
Electronic_ISBN :
978-4-907764-29-6
DOI :
10.1109/SICE.2008.4654626
