title: Steerable pencil beams for multi-Gbps indoor optical wireless communication.
abstract: We report a novel optical wireless communication (OWC) system solution that supports multi-Gbps (Gigabit-per-second) capacity for indoors. Narrow beams, termed as pencil beams, are directed to wireless users using a tunable laser and a passive diffractive optical element. This enables a wide coverage of ultra-high-capacity communication links to serve multiple network users simultaneously. Experimental results demonstrating data rates of up to 10 Gbps, with on-off keying modulation format, over a distance of more than 2.5 m, are reported. Error-free links beam-steered over a total wavelength range of 130 nm, with steering angle of 17.16°, have been achieved. This system is proposed for short-range OWC and is promising for seamless integration in in-building optical networks.
authors.forename: C W
authors.initials: CW
authors.lastname: Oh
authors.forename: E
authors.initials: E
authors.lastname: Tangdiongga
authors.forename: A M J
authors.initials: AM
authors.lastname: Koonen