Wide field-of-view optical broadcasting for bi-directional indoor optical wireless communications employing PAM-4 modulation | Zendy

Feng Feng | Zendy; Paramin Sangwongngam | Zendy; Grahame Faulkner | Zendy; Dominic O’Brien | Zendy

Open Access

Wide field-of-view optical broadcasting for bi-directional indoor optical wireless communications employing PAM-4 modulation

Author(s) -

Feng Feng,

Paramin Sangwongngam,

Grahame Faulkner,

Dominic O’Brien

Publication year - 2019

Publication title -

optics letters

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 1.524

H-Index - 272

eISSN - 1071-2763

pISSN - 0146-9592

DOI - 10.1364/ol.44.006009

Subject(s) - computer science , transmission (telecommunications) , broadcasting (networking) , optical wireless , upstream (networking) , optics , beam steering , gigabit , optical communication , modulation (music) , base station , free space optical communication , wavelength division multiplexing , telecommunications , wireless , beam (structure) , computer network , wavelength , physics , acoustics

We present wide field-of-view (FOV) bi-directional point-to-multipoint indoor optical wireless communications operating over a range of 4 m. The system is designed to integrate with fiber-to-the-home/building networks realized by a passive optical network. A phase-only spatial light modulator (SLM)-based beam steering base station with a ±30° FOV broadcasts downstream transmissions to two nomadic user terminals that use mirror-based beam steering to provide a ±50° FOV. At the base station, a composite phase mask is constructed on the SLM not only to perform optical broadcasting, but also to steer upstream optical transmissions from user terminals at a different wavelength. Successful upstream and downstream data transmission of 25 Gbit/s PAM4 is achieved.

The content you want is available to Zendy users.

Already have an account? Click here to sign in.

Having issues? You can contact us here

Accelerating Research