High-power blue superluminescent diode for high CRI lighting and high-speed visible light communication

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45 Scopus citations

Abstract

We demonstrated a high-power (474 mW) blue superluminescent diode (SLD) on c-plane GaN-substrate for speckle-free solid-state lighting (SSL), and high-speed visible light communication (VLC) link. The device, emitting at 442 nm, showed a large spectral bandwidth of 6.5 nm at an optical power of 105 mW. By integrating a YAG-phosphor-plate to the SLD, a CRI of 85.1 and CCT of 3392 K were measured, thus suitable for solid-state lighting. The SLD shows a relatively large 3-dB modulation bandwidth of >400 MHz, while a record high data rate of 1.45 Gigabit-per-second (Gbps) link has been achieved below forward-error correction (FEC) limit under non-return-to-zero on-off keying (NRZ-OOK) modulation scheme. Our results suggest that SLD is a promising alternative for simultaneous speckle-free white lighting and Gbps data communication dual functionalities.
Original languageEnglish (US)
Pages (from-to)26355
JournalOptics Express
Volume26
Issue number20
DOIs
StatePublished - Sep 25 2018

Bibliographical note

KAUST Repository Item: Exported on 2020-10-01
Acknowledged KAUST grant number(s): BAS/1/1614-01-01, KCR/1/2081-01-01, GEN/1/6607-01-01, REP/1/2878-01-01
Acknowledgements: King Abdulaziz City for Science and Technology (KACST), Grant No. KACST TIC R2-FP-008; This work was partially supported by the King Abdullah University of Science and Technology (KAUST) baseline funding, BAS/1/1614-01-01; KAUST equipment funding KCR/1/2081-01-01; GEN/1/6607-01-01; KAUST-KFUPM Special Initiative (KKI) Program, REP/1/2878-01-01.

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