Temperature dependence of spectral characteristics of distributed feedback resonators

C. C. Kores; N. Ismail; D. Geskus; M. Dijkstra; E. H. Bernhardi; M. Pollnau

doi:10.1117/12.2307023

Temperature dependence of spectral characteristics of distributed feedback resonators

C. C. Kores, N. Ismail, D. Geskus, M. Dijkstra, E. H. Bernhardi, M. Pollnau

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution › Academic › peer-review

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Abstract

The spectral response of a distributed-feedback resonator with a thermal chirp is investigated. An Al ₂ O ₃ channel waveguide with a surface Bragg grating inscribed into its SiO ₂ top cladding is studied. A linear temperature gradient along the resonator leads to a corresponding variation of the grating period. We characterize its spectral response with respect to wavelength and linewidth changes of the resonance peak. Simulated results show good agreement with the experimental data, indicating that the resonance wavelength is determined by the total accumulated phase shift. The calculated grating reflectivities at the resonance wavelength largely explain the observed changes of the resonance linewidth. This agreement demonstrates that the linewidth increase is caused by the increase of resonator outcoupling losses.

Original language	English
Title of host publication	Fiber Lasers and Glass Photonics
Subtitle of host publication	Materials through Applications
Editors	Stefano Taccheo, Jacob I. Mackenzie, Maurizio Ferrari
Publisher	SPIE Press
ISBN (Electronic)	9781510618923
DOIs	https://doi.org/10.1117/12.2307023
Publication status	Published - 2018
Event	SPIE Photonics Europe 2018 - Strasbourg, France Duration: 28 Jun 2018 → … Conference number: 10683

Publication series

Name	Proceedings of SPIE - The International Society for Optical Engineering
Volume	10683
ISSN (Print)	0277-786X
ISSN (Electronic)	1996-756X

Conference

Conference	SPIE Photonics Europe 2018
Country/Territory	France
City	Strasbourg
Period	28/06/18 → …

Keywords

Bragg grating
Distributed-feedback laser
Resonance linewidth
Resonance wavelength
Thermal grating chirp

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10.1117/12.2307023

10.1117_12.2307023.fullFinal published version, 278 KB

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Kores, C. C., Ismail, N., Geskus, D., Dijkstra, M., Bernhardi, E. H., & Pollnau, M. (2018). Temperature dependence of spectral characteristics of distributed feedback resonators. In S. Taccheo, J. I. Mackenzie, & M. Ferrari (Eds.), Fiber Lasers and Glass Photonics: Materials through Applications [106830B] (Proceedings of SPIE - The International Society for Optical Engineering; Vol. 10683). SPIE Press. https://doi.org/10.1117/12.2307023

@inproceedings{097360ca7c47432b8d78d0d56801eb27,

title = "Temperature dependence of spectral characteristics of distributed feedback resonators",

abstract = " The spectral response of a distributed-feedback resonator with a thermal chirp is investigated. An Al 2 O 3 channel waveguide with a surface Bragg grating inscribed into its SiO 2 top cladding is studied. A linear temperature gradient along the resonator leads to a corresponding variation of the grating period. We characterize its spectral response with respect to wavelength and linewidth changes of the resonance peak. Simulated results show good agreement with the experimental data, indicating that the resonance wavelength is determined by the total accumulated phase shift. The calculated grating reflectivities at the resonance wavelength largely explain the observed changes of the resonance linewidth. This agreement demonstrates that the linewidth increase is caused by the increase of resonator outcoupling losses. ",

keywords = "Bragg grating, Distributed-feedback laser, Resonance linewidth, Resonance wavelength, Thermal grating chirp",

author = "Kores, {C. C.} and N. Ismail and D. Geskus and M. Dijkstra and Bernhardi, {E. H.} and M. Pollnau",

note = "Publisher Copyright: {\textcopyright} 2018 SPIE.; SPIE Photonics Europe 2018 ; Conference date: 28-06-2018",

year = "2018",

doi = "10.1117/12.2307023",

language = "English",

series = "Proceedings of SPIE - The International Society for Optical Engineering",

publisher = "SPIE Press",

editor = "Stefano Taccheo and Mackenzie, {Jacob I.} and Maurizio Ferrari",

booktitle = "Fiber Lasers and Glass Photonics",

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Kores, CC, Ismail, N, Geskus, D, Dijkstra, M, Bernhardi, EH & Pollnau, M 2018, Temperature dependence of spectral characteristics of distributed feedback resonators. in S Taccheo, JI Mackenzie & M Ferrari (eds), Fiber Lasers and Glass Photonics: Materials through Applications., 106830B, Proceedings of SPIE - The International Society for Optical Engineering, vol. 10683, SPIE Press, SPIE Photonics Europe 2018, Strasbourg, France, 28/06/18. https://doi.org/10.1117/12.2307023

Temperature dependence of spectral characteristics of distributed feedback resonators. / Kores, C. C.; Ismail, N.; Geskus, D. et al.

Fiber Lasers and Glass Photonics: Materials through Applications. ed. / Stefano Taccheo; Jacob I. Mackenzie; Maurizio Ferrari. SPIE Press, 2018. 106830B (Proceedings of SPIE - The International Society for Optical Engineering; Vol. 10683).

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution › Academic › peer-review

TY - GEN

T1 - Temperature dependence of spectral characteristics of distributed feedback resonators

AU - Kores, C. C.

AU - Ismail, N.

AU - Geskus, D.

AU - Dijkstra, M.

AU - Bernhardi, E. H.

AU - Pollnau, M.

N1 - Conference code: 10683

PY - 2018

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N2 - The spectral response of a distributed-feedback resonator with a thermal chirp is investigated. An Al 2 O 3 channel waveguide with a surface Bragg grating inscribed into its SiO 2 top cladding is studied. A linear temperature gradient along the resonator leads to a corresponding variation of the grating period. We characterize its spectral response with respect to wavelength and linewidth changes of the resonance peak. Simulated results show good agreement with the experimental data, indicating that the resonance wavelength is determined by the total accumulated phase shift. The calculated grating reflectivities at the resonance wavelength largely explain the observed changes of the resonance linewidth. This agreement demonstrates that the linewidth increase is caused by the increase of resonator outcoupling losses.

AB - The spectral response of a distributed-feedback resonator with a thermal chirp is investigated. An Al 2 O 3 channel waveguide with a surface Bragg grating inscribed into its SiO 2 top cladding is studied. A linear temperature gradient along the resonator leads to a corresponding variation of the grating period. We characterize its spectral response with respect to wavelength and linewidth changes of the resonance peak. Simulated results show good agreement with the experimental data, indicating that the resonance wavelength is determined by the total accumulated phase shift. The calculated grating reflectivities at the resonance wavelength largely explain the observed changes of the resonance linewidth. This agreement demonstrates that the linewidth increase is caused by the increase of resonator outcoupling losses.

KW - Bragg grating

KW - Distributed-feedback laser

KW - Resonance linewidth

KW - Resonance wavelength

KW - Thermal grating chirp

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T3 - Proceedings of SPIE - The International Society for Optical Engineering

BT - Fiber Lasers and Glass Photonics

A2 - Taccheo, Stefano

A2 - Mackenzie, Jacob I.

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Kores CC, Ismail N, Geskus D, Dijkstra M, Bernhardi EH, Pollnau M. Temperature dependence of spectral characteristics of distributed feedback resonators. In Taccheo S, Mackenzie JI, Ferrari M, editors, Fiber Lasers and Glass Photonics: Materials through Applications. SPIE Press. 2018. 106830B. (Proceedings of SPIE - The International Society for Optical Engineering). doi: 10.1117/12.2307023

Temperature dependence of spectral characteristics of distributed feedback resonators

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