The University of Southampton
University of Southampton Institutional Repository

Bragg-grating stabilised external cavity lasers in optical fiber and integrated planar silica-on-silicon circuits

Bragg-grating stabilised external cavity lasers in optical fiber and integrated planar silica-on-silicon circuits
Bragg-grating stabilised external cavity lasers in optical fiber and integrated planar silica-on-silicon circuits
Conventional singlemode semiconductor DFB and VCSEL lasers used in high resolution spectroscopy are often required to operate at specific, custom wavelengths, such as those associated with gas absorption lines. We present the results of work to develop alternative sources in the 1550nm and 1650nm regions, the latter coinciding with an absorption line of methane. Custom wavelength Bragg gratings have been used to stabilize the output of external cavity lasers implemented in both optical fiber and planar silica-on-silicon integrated circuits, using commercially available semiconductor gain chips, to give laser output at 1648 and 1649 nm, respectively. Thermal expansion or mechanical strain of the Bragg grating offers a suitable wavelength tuning mechanism. Results are presented including the wavelength tuning range, output power, relative intensity noise (RIN), side-mode suppression and linewidth of devices for application in high resolution gas spectroscopy. The different methods of writing Bragg gratings in optical fiber and planar silica-on-silicon allow a high degree of flexibility in the choice of emission wavelength.
Chen, F.
52094605-7f42-4242-aa69-fde77aaaa7c3
Gates, J.C.
b71e31a1-8caa-477e-8556-b64f6cae0dc2
Holmes, C.
16306bb8-8a46-4fd7-bb19-a146758e5263
Staines, S.
47446657-9b6f-4db5-afeb-6ff90323a86b
Lynch, S.
cb5a2801-5325-4b19-b0b7-2ee8657db30f
Hodgkinson, J.
38d85a3c-c8cc-4e72-b066-f884633576c6
Smith, P.G.R.
8979668a-8b7a-4838-9a74-1a7cfc6665f6
Tatam, R.P.
e2a442ec-225f-4373-8c2b-bcef387026ff
Chen, F.
52094605-7f42-4242-aa69-fde77aaaa7c3
Gates, J.C.
b71e31a1-8caa-477e-8556-b64f6cae0dc2
Holmes, C.
16306bb8-8a46-4fd7-bb19-a146758e5263
Staines, S.
47446657-9b6f-4db5-afeb-6ff90323a86b
Lynch, S.
cb5a2801-5325-4b19-b0b7-2ee8657db30f
Hodgkinson, J.
38d85a3c-c8cc-4e72-b066-f884633576c6
Smith, P.G.R.
8979668a-8b7a-4838-9a74-1a7cfc6665f6
Tatam, R.P.
e2a442ec-225f-4373-8c2b-bcef387026ff

Chen, F., Gates, J.C., Holmes, C., Staines, S., Lynch, S., Hodgkinson, J., Smith, P.G.R. and Tatam, R.P. (2014) Bragg-grating stabilised external cavity lasers in optical fiber and integrated planar silica-on-silicon circuits. Photonics West 2014, San Francisco, United States. 01 - 06 Feb 2014. 7 pp .

Record type: Conference or Workshop Item (Paper)

Abstract

Conventional singlemode semiconductor DFB and VCSEL lasers used in high resolution spectroscopy are often required to operate at specific, custom wavelengths, such as those associated with gas absorption lines. We present the results of work to develop alternative sources in the 1550nm and 1650nm regions, the latter coinciding with an absorption line of methane. Custom wavelength Bragg gratings have been used to stabilize the output of external cavity lasers implemented in both optical fiber and planar silica-on-silicon integrated circuits, using commercially available semiconductor gain chips, to give laser output at 1648 and 1649 nm, respectively. Thermal expansion or mechanical strain of the Bragg grating offers a suitable wavelength tuning mechanism. Results are presented including the wavelength tuning range, output power, relative intensity noise (RIN), side-mode suppression and linewidth of devices for application in high resolution gas spectroscopy. The different methods of writing Bragg gratings in optical fiber and planar silica-on-silicon allow a high degree of flexibility in the choice of emission wavelength.

Text
6120.pdf - Other
Download (437kB)

More information

e-pub ahead of print date: 2014
Venue - Dates: Photonics West 2014, San Francisco, United States, 2014-02-01 - 2014-02-06
Organisations: Optoelectronics Research Centre

Identifiers

Local EPrints ID: 363177
URI: https://eprints.soton.ac.uk/id/eprint/363177
PURE UUID: f5214cb8-f5c5-43d2-ba04-93a6ebc6e7e4
ORCID for J.C. Gates: ORCID iD orcid.org/0000-0001-8671-5987

Catalogue record

Date deposited: 20 Mar 2014 16:34
Last modified: 16 Mar 2019 01:34

Export record

Contributors

Author: F. Chen
Author: J.C. Gates ORCID iD
Author: C. Holmes
Author: S. Staines
Author: S. Lynch
Author: J. Hodgkinson
Author: P.G.R. Smith
Author: R.P. Tatam

University divisions

Download statistics

Downloads from ePrints over the past year. Other digital versions may also be available to download e.g. from the publisher's website.

View more statistics

Atom RSS 1.0 RSS 2.0

Contact ePrints Soton: eprints@soton.ac.uk

ePrints Soton supports OAI 2.0 with a base URL of https://eprints.soton.ac.uk/cgi/oai2

This repository has been built using EPrints software, developed at the University of Southampton, but available to everyone to use.

We use cookies to ensure that we give you the best experience on our website. If you continue without changing your settings, we will assume that you are happy to receive cookies on the University of Southampton website.

×