1. ABCD matrix for reflection and refraction of laser beam at tilted concave and convex elliptic paraboloid interfaces and studying laser beam reflection from a tilted concave parabola of revolution

M. Mansour Abadi; Z. Ghassemlooy; D. Smith; W. Pang Ng

Volume 3, Issue 1 , Winter and Spring 2015, , Pages 1-11


  Studying Gaussian beam is a method to investigate laser beam propagation and ABCD matrix is a fast and simple method to simulate Gaussian beam propagation in different mediums. Of the ABCD matrices studied so far, reflection and refraction matrices at various surfaces have attracted a lot of researches. ...  Read More

2. Effect of Nonlinear Phase Variation in Optical Millimetre Wave Radio over Fibre Systems

A. Bahrami; W. Pang Ng; Z. Ghassemlooy; T. Kanesan

Volume 3, Issue 1 , Winter and Spring 2015, , Pages 17-27


  In this paper, we propose an optical millimetre wave radio-over-fibre (mm-wave RoF) system that uses a dual drive Mach Zehnder modulator (DD-MZM), which is biased at the maximum transmission biasing point, to generate an optical double sideband-suppressed carrier. The input to the DD-MZM are binary phase ...  Read More

3. Indoor Non-directed Optical Wireless Communications - Optimization of the Lambertian Order

Z. Ghassemlooy; D. Wu; M. A. Khalighi; X. Tang

Volume 1, Issue 1 , Winter and Spring 2013, , Pages 1-9


  For an indoor non-directed line of sight optical wireless communication (NLOS-OWC) system we investigate the optimized Lambertian order (OLO) of light-emitting diodes (LEDs). We firstly derive an expression for the OLO from a conventional Lambertian LED model. Then, we analyze the indoor multi-cell NLOS-OWC ...  Read More