Blue Laser Diode System with an Enhanced Wavelength Tuning Range

Sani Mukhtar; Islam Ashry; Chao Shen; Tien K. Ng; Boon S. Ooi; M. Z.M. Khan

doi:10.1109/JPHOT.2020.2983448

Blue Laser Diode System with an Enhanced Wavelength Tuning Range

Sani Mukhtar, Islam Ashry, Chao Shen, Tien K. Ng, Boon S. Ooi, M. Z.M. Khan^*

^*Corresponding author for this work

Research output: Contribution to journal › Article › peer-review

8 Scopus citations

Abstract

A 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.

Original language	English
Article number	9050898
Journal	IEEE Photonics Journal
Volume	12
Issue number	2
DOIs	https://doi.org/10.1109/JPHOT.2020.2983448
State	Published - Apr 2020

Bibliographical note

Funding Information:
Manuscript received March 6, 2020; revised March 20, 2020; accepted April 16, 2020. Date of publication March 30, 2020 The work of SM and MZMK is supported by King Fahd University of Petroleum and Minerals through King Abdulaziz City for Science and Technology (KACST), Technology Innovation Center (TIC) for Solid-State Lighting (SSL) sub-awarded grant EE002381. The work of I. Ashry, C. Shen, T. K. Ng, and B. S. Ooi were supported by the King Abdul-lah 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). The work of the authors were supported by the 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. Corresponding author: M. Z. M. Khan (e-mail: [email protected]).

Publisher Copyright:
© 2020 IEEE.

Keywords

Tunable Laser
external cavity systems
self-injection locking

ASJC Scopus subject areas

Atomic and Molecular Physics, and Optics
Electrical and Electronic Engineering

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10.1109/JPHOT.2020.2983448

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title = "Blue Laser Diode System with an Enhanced Wavelength Tuning Range",

abstract = "A 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.",

keywords = "Tunable Laser, external cavity systems, self-injection locking",

author = "Sani Mukhtar and Islam Ashry and Chao Shen and Ng, {Tien K.} and Ooi, {Boon S.} and Khan, {M. Z.M.}",

note = "Funding Information: Manuscript received March 6, 2020; revised March 20, 2020; accepted April 16, 2020. Date of publication March 30, 2020 The work of SM and MZMK is supported by King Fahd University of Petroleum and Minerals through King Abdulaziz City for Science and Technology (KACST), Technology Innovation Center (TIC) for Solid-State Lighting (SSL) sub-awarded grant EE002381. The work of I. Ashry, C. Shen, T. K. Ng, and B. S. Ooi were supported by the King Abdul-lah 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). The work of the authors were supported by the 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. Corresponding author: M. Z. M. Khan (e-mail: [email protected]). Publisher Copyright: {\textcopyright} 2020 IEEE.",

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AU - Ooi, Boon S.

AU - Khan, M. Z.M.

N1 - Funding Information: Manuscript received March 6, 2020; revised March 20, 2020; accepted April 16, 2020. Date of publication March 30, 2020 The work of SM and MZMK is supported by King Fahd University of Petroleum and Minerals through King Abdulaziz City for Science and Technology (KACST), Technology Innovation Center (TIC) for Solid-State Lighting (SSL) sub-awarded grant EE002381. The work of I. Ashry, C. Shen, T. K. Ng, and B. S. Ooi were supported by the King Abdul-lah 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). The work of the authors were supported by the 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. Corresponding author: M. Z. M. Khan (e-mail: [email protected]). Publisher Copyright: © 2020 IEEE.

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N2 - A 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.

AB - A 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.

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Blue Laser Diode System with an Enhanced Wavelength Tuning Range

Abstract

Bibliographical note

Keywords

ASJC Scopus subject areas

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