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dc.contributor.authorMukhtar, Sani
dc.contributor.authorShen, Chao
dc.contributor.authorAshry, Islam
dc.contributor.authorNg, Tien Khee
dc.contributor.authorOoi, Boon S.
dc.contributor.authorKhan, Mohammed Zahed Mustafa
dc.identifier.citationMukhtar, S., Shen, C., Ashry, I., Ng, T. K., Ooi, B. S., & Khan, M. Z. M. (2020). Blue laser diode system with an enhanced wavelength tuning range. IEEE Photonics Journal, 1–1. doi:10.1109/jphot.2020.2983448
dc.description.abstractA prism-based self-injection locked seamlessly tunable blue InGaN/GaN laser diode composite cavity system is presented. A rigorous analysis of this external cavity diode laser (ECDL) system is performed at two different optical feedback powers. At 130 mA low injection, the high reflection system (HRS) exhibits a record wideband tuning span of ~12.11 nm with a side-mode-suppression-ratio (SMSR) ≥ 15 dB, measuring as high as 40 dB, linewidth ≤ 110 pm, and a working power of about 3 mW. Whereas, a tuning range of 8 nm with linewidth ≤ 88 pm, SMSR ≥ 13 dB, reaching a maximum of 35 dB with 14.5 mW usable power is achieved from the low reflection system (LRS) at the same injection current. Moreover, an inverse relationship between the optical power and the tunability is observed in both the systems with a value as high as 180 mW exhibited by LRS configuration and attaining a tunability of 4.5 nm. Both systems highlight high stability even at higher injection currents and temperature. Such a robust, simple, and compact system may serve as a crucial light source in a plethora of diverse applications besides visible optical communications. To the best of our knowledge, this is the first report on a continuously tunable self-injection locked tunable laser system.
dc.description.sponsorshipThe authors (SM and MZMK) would like to thank King Fahd University of Petroleum and Minerals for supporting this research. The authors (IS, CS, TKN, and BSO) acknowledge the support from King Abdullah University of Science and Technology (KAUST) through baseline funding BAS/1/1614-01-01 and KAUST-KFUPM special Initiative (KKI) program (REP/1/2878-01-01). All the authors acknowledge the funding support from King Abdulaziz City for Science and Technology (KACST), Technology Innovation Center (TIC) for Solid-State Lighting primary grant KACST TIC R2-FP- 008 awarded to KAUST and the sub-awarded grant EE002381 to KFUPM.
dc.rightsThis work is licensed under a Creative Commons Attribution 4.0 License. For more information, see
dc.subjectTunable Laser
dc.subjectexternal cavity systems
dc.subjectself-injection locking
dc.titleBlue laser diode system with an enhanced wavelength tuning range
dc.contributor.departmentComputer, Electrical and Mathematical Sciences and Engineering (CEMSE) Division
dc.contributor.departmentElectrical Engineering Program
dc.contributor.departmentPhotonics Laboratory
dc.identifier.journalIEEE Photonics Journal
dc.contributor.institutionElectrical and Electronics Engineering, King Fahd University of Petroleum & Minerals, 48080 Dhahran, Eastern Province Saudi Arabia 31261
dc.contributor.institutionElectrical Engineering Department, King Fahd University of Petroleum and minerals, Dhahran, Eastern Province Saudi Arabia 31261
kaust.personShen, Chao
kaust.personAshry, Islam
kaust.personNg, Tien Khee
kaust.personOoi, Boon S.

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