Tunable self-injection locked green laser diode

Type
Article

Authors
Shamim, Md Hosne Mobarok
Ng, Tien Khee
Ooi, Boon S.
Khan, Mohammed Zahed Mustafa

KAUST Department
Computer, Electrical and Mathematical Sciences and Engineering (CEMSE) Division
Electrical Engineering Program
Photonics Laboratory

KAUST Grant Number
KAUST004
BAS/1/1614-01-01
GEN/1/6607-01-01
KCR/1/2081-01-01
REP/1/2878-01-01

Online Publication Date
2018-10-08

Print Publication Date
2018-10-15

Date
2018-10-08

Abstract
We report, to the best of our knowledge, the first employment of a self-injection locking scheme for the demonstration of a tunable InGaN/GaN semiconductor laser diode. We have achieved a 7.11 nm (521.10–528.21 nm) tunability in a green color with different injection currents and temperatures. The system exhibited mode spectral linewidth as narrow as ∼69 pm and a side mode suppression ratio as high as ∼28 dB, with a maximum optical power of ∼16.7 mW. In the entire tuning window, extending beyond 520 nm, a spectral linewidth of ≤100 pm, high power, and stable performance were consistently achieved, making this, to the best of our knowledge, the first-of-its-kind compact tunable laser system attractive for spectroscopy, imaging, sensing systems, and visible light communication.

Citation
Shamim MHM, Ng TK, Ooi BS, Khan MZM (2018) Tunable self-injection locked green laser diode. Optics Letters 43: 4931. Available: http://dx.doi.org/10.1364/ol.43.004931.

Acknowledgements
King Fahd University of Petroleum and Minerals (KFUPM) (KAUST004); King Abdulaziz City for Science and Technology (KACST) (EE2381, KACST TIC R2-FP-008); King Abdullah University of Science and Technology (KAUST) (BAS/1/1614-01-01, GEN/1/6607-01-01, KCR/1/2081-01-01, REP/1/2878-01-01); KAUST–KFUPM Special Initiative (KKI) Program.

Publisher
The Optical Society

Journal
Optics Letters

DOI
10.1364/ol.43.004931

Additional Links
https://www.osapublishing.org/ol/abstract.cfm?uri=ol-43-20-4931

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