Abstract
A 400 Gbps/100 m free-space optical (FSO) link with dense-wavelength-division-multiplexing (DWDM)/space-division-multiplexing (SDM) techniques and a doublet lens scheme is proposed. To the best of our knowledge, this is the first time that a link adopting DWDM and SDM techniques and a doublet lens scheme has demonstrated a 400 Gbps/100 m FSO link. The experimental results show that the free-space transmission rate is significantly enhanced by the DWDM and SDM techniques, and the free-space transmission distance is greatly increased by the doublet lens scheme. A 16-channel FSO link with a total transmission rate of 400 Gbps (25 Gbps/λ × 16 λ = 400 Gbps) over a 100 m free-space link is successfully demonstrated. Such a 400 Gbps/100 m DWDM/SDM FSO link provides the advantages of optical wireless communications for high transmission rates and long transmission distances, which is very useful for high-speed and long-haul light-based WiFi (LiFi) applications.
| Original language | English |
|---|---|
| Article number | 025206 |
| Journal | Laser Physics Letters |
| Volume | 14 |
| Issue number | 2 |
| DOIs | |
| State | Published - Feb 2017 |
Bibliographical note
Publisher Copyright:© 2017 Astro Ltd.
Keywords
- dense-wavelength-division-multiplexing
- doublet lens
- free-space optical link
- space-division-multiplexing
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