Frequency modulated hybrid photonic crystal laser by thermal tuning

S. M. Butler; A. P. Bakoz; P. K.J. Singaravelu; A. A. Liles; B. O’Shaughnessy; E. A. Viktorov; L. O’Faolain; S. P. Hegarty

doi:10.1364/OE.27.011312

Frequency modulated hybrid photonic crystal laser by thermal tuning

S. M. Butler^*, A. P. Bakoz, P. K.J. Singaravelu, A. A. Liles, B. O’Shaughnessy, E. A. Viktorov, L. O’Faolain, S. P. Hegarty

^*Corresponding author for this work

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

Abstract

We demonstrate frequency modulation (FM) in an external cavity (EC) III-V/silicon laser, comprising a reflective semiconductor optical amplifier (RSOA) and a silicon nitride (SiN) waveguide vertically coupled to a 2D silicon photonic crystal (PhC) cavity. The PhC cavity acts as a tunable narrowband reflector giving wavelength selectivity. The FM was achieved by thermo-optical modulation of the reflector via a p-n junction. Single-mode operation was ensured by the short cavity length, overlapping only one longitudinal laser mode with the reflector. We investigate the effect of reflector modulation theoretically and experimentally and predict a substantial tracking of the resonator by the laser frequency with very small intensity modulation (IM).

Original language	English
Pages (from-to)	11312-11322
Number of pages	11
Journal	Optics Express
Volume	27
Issue number	8
Early online date	9 Apr 2019
DOIs	https://doi.org/10.1364/OE.27.011312
Publication status	Published - 15 Apr 2019

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10.1364/OE.27.011312Licence: CC BY

Butler_2019_OE_frequencymodulation_CC
Copyright © 2019 The Author(s), Published by The Optical Society under the terms of the Creative Commons Attribution 4.0 License. Further distribution of this work must maintain attribution to the author(s) and the published article's title, journal citation, and DOI.
Final published version, 3.47 MBLicence: CC BY

DANCeR: DANCeR
O'Faolain, L. (PI)
European Research Council
1/12/13 → 31/05/19
Project: Standard

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@article{b2dc524b310e451fb763b24e276a14f8,

title = "Frequency modulated hybrid photonic crystal laser by thermal tuning",

abstract = "We demonstrate frequency modulation (FM) in an external cavity (EC) III-V/silicon laser, comprising a reflective semiconductor optical amplifier (RSOA) and a silicon nitride (SiN) waveguide vertically coupled to a 2D silicon photonic crystal (PhC) cavity. The PhC cavity acts as a tunable narrowband reflector giving wavelength selectivity. The FM was achieved by thermo-optical modulation of the reflector via a p-n junction. Single-mode operation was ensured by the short cavity length, overlapping only one longitudinal laser mode with the reflector. We investigate the effect of reflector modulation theoretically and experimentally and predict a substantial tracking of the resonator by the laser frequency with very small intensity modulation (IM).",

author = "Butler, {S. M.} and Bakoz, {A. P.} and Singaravelu, {P. K.J.} and Liles, {A. A.} and B. O{\textquoteright}Shaughnessy and Viktorov, {E. A.} and L. O{\textquoteright}Faolain and Hegarty, {S. P.}",

note = "Funding: Science Foundation Ireland (SFI 12/RC/2276, SFI 16/ERCS/3838); Engineering and Physical Sciences Research Council (EPSRC) (doctoral grant EP/L505079/1); H2020 European Research Council (ERC) (starting grant 337508); Scottish Enterprise; Cork Institute of Technology (CIT) (R{\'i}sam); Irish Government{\textquoteright}s Programme for Research in Third Level Institutions, Cycle 5, Strand 1a (CREATE).",

year = "2019",

month = apr,

day = "15",

doi = "10.1364/OE.27.011312",

language = "English",

volume = "27",

pages = "11312--11322",

journal = "Optics Express",

issn = "1094-4087",

publisher = "OPTICAL SOC AMER",

number = "8",

}

TY - JOUR

T1 - Frequency modulated hybrid photonic crystal laser by thermal tuning

AU - Butler, S. M.

AU - Bakoz, A. P.

AU - Singaravelu, P. K.J.

AU - Liles, A. A.

AU - O’Shaughnessy, B.

AU - Viktorov, E. A.

AU - O’Faolain, L.

AU - Hegarty, S. P.

N1 - Funding: Science Foundation Ireland (SFI 12/RC/2276, SFI 16/ERCS/3838); Engineering and Physical Sciences Research Council (EPSRC) (doctoral grant EP/L505079/1); H2020 European Research Council (ERC) (starting grant 337508); Scottish Enterprise; Cork Institute of Technology (CIT) (Rísam); Irish Government’s Programme for Research in Third Level Institutions, Cycle 5, Strand 1a (CREATE).

PY - 2019/4/15

Y1 - 2019/4/15

N2 - We demonstrate frequency modulation (FM) in an external cavity (EC) III-V/silicon laser, comprising a reflective semiconductor optical amplifier (RSOA) and a silicon nitride (SiN) waveguide vertically coupled to a 2D silicon photonic crystal (PhC) cavity. The PhC cavity acts as a tunable narrowband reflector giving wavelength selectivity. The FM was achieved by thermo-optical modulation of the reflector via a p-n junction. Single-mode operation was ensured by the short cavity length, overlapping only one longitudinal laser mode with the reflector. We investigate the effect of reflector modulation theoretically and experimentally and predict a substantial tracking of the resonator by the laser frequency with very small intensity modulation (IM).

AB - We demonstrate frequency modulation (FM) in an external cavity (EC) III-V/silicon laser, comprising a reflective semiconductor optical amplifier (RSOA) and a silicon nitride (SiN) waveguide vertically coupled to a 2D silicon photonic crystal (PhC) cavity. The PhC cavity acts as a tunable narrowband reflector giving wavelength selectivity. The FM was achieved by thermo-optical modulation of the reflector via a p-n junction. Single-mode operation was ensured by the short cavity length, overlapping only one longitudinal laser mode with the reflector. We investigate the effect of reflector modulation theoretically and experimentally and predict a substantial tracking of the resonator by the laser frequency with very small intensity modulation (IM).

U2 - 10.1364/OE.27.011312

DO - 10.1364/OE.27.011312

M3 - Article

AN - SCOPUS:85064460025

SN - 1094-4087

VL - 27

SP - 11312

EP - 11322

JO - Optics Express

JF - Optics Express

IS - 8

ER -

Frequency modulated hybrid photonic crystal laser by thermal tuning

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