Investigation of Self-Injection Locked Visible Laser Diodes for High Bit-Rate Visible Light Communication

Md Hosne Mobarok Shamim; Mohamed Adel Shemis; Chao Shen; Hassan M. Oubei; Tien Khee Ng; Boon S. Ooi; Mohammed Zahed Mustafa Khan

doi:10.1109/JPHOT.2018.2849884

IEEE Photonics Journal (Jan 2018)

Investigation of Self-Injection Locked Visible Laser Diodes for High Bit-Rate Visible Light Communication

Md Hosne Mobarok Shamim,
Mohamed Adel Shemis,
Chao Shen,
Hassan M. Oubei,
Tien Khee Ng,
Boon S. Ooi,
Mohammed Zahed Mustafa Khan

Affiliations

Md Hosne Mobarok Shamim: ORCiD; Optoelectronics Research Laboratory, Electrical Engineering Department, King Fahd University of Petroleum & Minerals, Dhahran 31261, Saudi Arabia
Mohamed Adel Shemis: Optoelectronics Research Laboratory, Electrical Engineering Department, King Fahd University of Petroleum & Minerals, Dhahran 31261, Saudi Arabia
Chao Shen: Photonics Laboratory, Computer, Electrical, and Mathematical Sciences and Engineering Division, King Abdullah University of Science and Technology, Thuwal, Saudi Arabia
Hassan M. Oubei: ORCiD; Photonics Laboratory, Computer, Electrical, and Mathematical Sciences and Engineering Division, King Abdullah University of Science and Technology, Thuwal, Saudi Arabia
Tien Khee Ng: ORCiD; Photonics Laboratory, Computer, Electrical, and Mathematical Sciences and Engineering Division, King Abdullah University of Science and Technology, Thuwal, Saudi Arabia
Boon S. Ooi: ORCiD; Photonics Laboratory, Computer, Electrical, and Mathematical Sciences and Engineering Division, King Abdullah University of Science and Technology, Thuwal, Saudi Arabia
Mohammed Zahed Mustafa Khan: ORCiD; Optoelectronics Research Laboratory, Electrical Engineering Department, King Fahd University of Petroleum & Minerals, Dhahran 31261, Saudi Arabia

DOI: https://doi.org/10.1109/JPHOT.2018.2849884
Journal volume & issue: Vol. 10, no. 4
pp. 1 – 11

Abstract

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We report on self-injection locking in InGaN/GaN (blue/green) and InGaP/AlGaInP (red) visible-light laser diodes. The free-space optical feedback path was accomplished via an external mirror. The effect of injection current, optical power injection ratio, and external cavity length on the spectral linewidth and modulation bandwidth of the lasers is investigated. Our results show that the laser performance was substantially improved. In particular, we achieved a significant increase of ~57% (1.53-2.41 GHz) and ~31% (1.72-2.26 GHz) in the modulation bandwidth, and ~9 (1.0-0.11 nm) and ~9 (0.63-0.07 nm) times reduction in spectral linewidth of the green and blue lasers, respectively. Consequently, side-mode-suppression-ratio was considerably increased in all the cases, reaching as high as ~20 dB in self-injection locked blue laser diode, thus enabling a close to single-mode operation. This paper paves the way for attaining high-speed optical wireless communications by overcoming the challenges of limited modulation bandwidth and multimode operation of visible laser diodes with this simple scheme.

Published in IEEE Photonics Journal

ISSN: 1943-0655 (Online)
Publisher: IEEE
Country of publisher: United States
LCC subjects: Technology: Engineering (General). Civil engineering (General): Applied optics. Photonics; Science: Physics: Optics. Light
Website: http://ieeexplore.ieee.org/xpl/RecentIssue.jsp?punumber=4563994

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