A free space optical wireless communication system with 3 degree angular coverage and 1.25 GHz modulation bandwidth is reported, in which relatively narrow laser beam of a simultaneous high power, high modulation speed and ultra high modulation efficiency directly modulated two-electrode tapered laser diode is steered using a nematic phase-only Liquid-Crystal On Silicon Spatial Light Modulator (LCOS SLM) by displaying reconfigurable 256 phase level gratings.
- Beam steering
- free-space optical communication
- semiconductor lasers
- spatial light modulators (SLMs)
ASJC Scopus subject areas
- Atomic and Molecular Physics, and Optics