Investigation and design of short-range free-space optical communication system for flight platforms
Heng, Lester Kiang Huat
Date of Issue2010
School of Electrical and Electronic Engineering
Free-space optical communications (FSOC), also known as free-space optics (FSO), offers the potential of having high data rate communications on the wireless domain. FSOC is largely similar to fiber-optics communications except for the difference in their transmission medians. Instead of the fiber-optics cable, FSOC transmits through atmosphere or vacuum, depending on where it is applied. FSOC takes advantage of the laser beam's small divergence to generate high energy density within the beam footprint. The narrow beam spread, coupled with receiver's small field-of-view (FOV), offers immunity to interference, interception and jamming. It also allows the employment of smaller and less power consuming optical devices. However, pointing of the beam and receiver's aperture are required for the line-of-sight (LOS) alignment for both transmit and receive terminals before FSOC can commerce.
DRNTU::Engineering::Electrical and electronic engineering::Optics, optoelectronics, photonics
Nanyang Technological University