Design and characterisation of terabit/s capable compact localisation and beam-steering terminals for fiber-wireless-fiber links

Journal article

This paper presents the design, implementation and characterisation of compact fiber-wireless-fiber (FWF) localisation and beam-steering terminals, which provide a bi-directional free-space connection between fiber optic transceivers. The use of simple mirror based beam-steering, with high localisation accuracy in both steering axes enables ultra-high data rate transmission and practical indoor coverage. The auto-aligned terminals have a tracking accuracy of 0.02⁰, a full angle field-of-view (FoV) of 50⁰, a tracking latency of 200ms and work at wavelengths between 1300-1700nm. In an offline data processing experimental setup, 1 Tbit/s free-space transmission capability is demonstrated over a 2.54m² coverage area using ten wavelength division multiplexed PAM-4 signals. Further, full-duplex, real-time, data transmission using off-the-shelf small form-factor pluggable (SFP) optical transceivers is also demonstrated for Virtual Reality (VR) application. Here, using standard 10G SFP+ transceivers without the use of any pre/post optical amplification, the auto-aligned FWF terminals achieve 4.9m² localisation and 3.14m² bidirectional communications coverage over a range of ∼4m

Authors: Singh, R; Feng, F; Hong, Y; Faulkner, G; Rushikesh, D

• Publication status: Published
• Peer review status: Peer reviewed
• Publisher: IEEE
• Journal: Journal of Lightwave Technology
• Volume: 38
• Issue: 24
• Pages: 6817-6826
• Publication date: 2020-09-08
• Acceptance date: 2020-09-01
• DOI: 10.1109/JLT.2020.3022754
• EISSN: 1558-2213
• ISSN: 0733-8724
• Language: English
• Keywords: FFR