Single-layer phase screen is a classical, simple and accurate approach for simulating the optical field under turbulence, it generally used in free space communication (FSOC). However, conventional single-layer studies have rarely considered pointing errors from FSOC, which prevents theoretical results mobile FSOC being verified using simulated fields. This work establishes simulation method wi...

Visually-assisted optical indoor wireless local area network (LAN) is promising not only for high-speed but for offering intuitive user interface. Free-space optical communications (FSOC)(Jahns, 1994) are a key technology to create image-based ultra-fast wireless communication systems of the future. Compared with radio-frequency (RF) electromagnetic waves, the outstanding features of free-space...

Method for applying spread-spectrum techniques to optical communication is presented. The interference suppression capability of spread-spectrum systems is shown to be enhanced by optical transform domain processing.Effects of jammer in DSSS communication system are demonstrated in thispaper.Several possible implementations of this system are suggested, and applications to fiber optics, laser r...

Space-division multiplexing (SDM) uses multiplicity of space channels to increase capacity for optical communication. It is applicable for optical communication in both free space and guided waves. This paper focuses on SDM for fiber-optic communication using few-mode fibers or multimode fibers, in particular on the critical challenge of mode crosstalk. Multiple-input–multipleoutput (MIMO) equa...

The development of a new hybrid packaging method is reported, where the front end radio frequency (RF) element, namely a modified quasiYagi antenna, is integrated with an optical transmitter and an optical receiver on single PCB for dual-mode, i.e. RF/free space optical communication. The VCSEL and the pin diode are placed on the antenna directors to share the common metal pads on the Duroid (R...

In this paper, Performance evaluation of Free Space Optical Communication Link with Different Parameters has been observed. It has been observed that BER of received data increases when path length is increases, also increase when data rate increases. In other case it observed that BER of received data increases when path length is increases, also increase when divergence angle increases and Q ...