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

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
DOIs	https://doi.org/10.1364/OE.27.011312
Publication status	Published - 15 Apr 2019

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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 = "Publisher Copyright: Journal {\textcopyright} 2019",

year = "2019",

month = apr,

day = "15",

doi = "10.1364/OE.27.011312",

language = "English",

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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.

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).

UR - https://www.scopus.com/pages/publications/85064460025

U2 - 10.1364/OE.27.011312

DO - 10.1364/OE.27.011312

M3 - Article

C2 - 31052977

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

Abstract

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