The University of Southampton
University of Southampton Institutional Repository

Observation of laser pulse propagation in optical fibers with a SPAD camera

Observation of laser pulse propagation in optical fibers with a SPAD camera
Observation of laser pulse propagation in optical fibers with a SPAD camera
Recording processes and events that occur on sub-nanosecond timescales poses a difficult challenge. Conventional ultrafast imaging techniques often rely on long data collection times, which can be due to limited device sensitivity and/or the requirement of scanning the detection system to form an image. In this work, we use a single-photon avalanche detector array camera with pico-second timing accuracy to detect photons scattered by the cladding in optical fibers. We use this method to film supercontinuum generation and track a GHz pulse train in optical fibers. We also show how the limited spatial resolution of the array can be improved with computational imaging. The single-photon sensitivity of the camera and the absence of scanning the detection system results in short total acquisition times, as low as a few seconds depending on light levels. Our results allow us to calculate the group index of different wavelength bands within the supercontinuum generation process. This technology can be applied to a range of applications, e.g., the characterization of ultrafast processes, time-resolved fluorescence imaging, three-dimensional depth imaging, and tracking hidden objects around a corner.
Imaging and sensing, Ultrafast photonics, Single photons and quantum effects
2045-2322
Warburton, Ryan
35108cd7-0004-4a34-861b-197cab7a157d
Aniculaesei, Constantin
c5ffd569-4a03-4586-8d27-809dbe773e31
Clerici, Matteo
9b0734b5-8563-40c7-853b-66c560b75d8c
Altmann, Yoann
090cfd9a-2e7d-4094-b025-741f9d73626f
Gariepy, Genevieve
5fcd22ed-f525-4728-a22b-4d6b5c636fa5
McCracken, Richard
d25f022a-5c17-4c29-bcce-a480ac98c2a0
Reid, Derryck
eeddc284-e479-479f-afdd-9116ae55cfd9
McLaughlin, Steve
efd3a773-379a-4c33-bb61-cd95ad92c28c
Petrovich, Marco
bfe895a0-da85-4a40-870a-2c7bfc84a4cf
Hayes, John
a6d3acd6-d7d5-4614-970e-0e8c594e48e2
Henderson, Robert
52992dfb-e884-4a22-b7e5-3ebb6df538d3
Faccio, Daniele
044c19fc-9f82-41f6-8a61-3c6e9ef20674
Leach, Jonathan
a8b3b4df-2da5-45d8-b890-3f12ce674b09
Warburton, Ryan
35108cd7-0004-4a34-861b-197cab7a157d
Aniculaesei, Constantin
c5ffd569-4a03-4586-8d27-809dbe773e31
Clerici, Matteo
9b0734b5-8563-40c7-853b-66c560b75d8c
Altmann, Yoann
090cfd9a-2e7d-4094-b025-741f9d73626f
Gariepy, Genevieve
5fcd22ed-f525-4728-a22b-4d6b5c636fa5
McCracken, Richard
d25f022a-5c17-4c29-bcce-a480ac98c2a0
Reid, Derryck
eeddc284-e479-479f-afdd-9116ae55cfd9
McLaughlin, Steve
efd3a773-379a-4c33-bb61-cd95ad92c28c
Petrovich, Marco
bfe895a0-da85-4a40-870a-2c7bfc84a4cf
Hayes, John
a6d3acd6-d7d5-4614-970e-0e8c594e48e2
Henderson, Robert
52992dfb-e884-4a22-b7e5-3ebb6df538d3
Faccio, Daniele
044c19fc-9f82-41f6-8a61-3c6e9ef20674
Leach, Jonathan
a8b3b4df-2da5-45d8-b890-3f12ce674b09

Warburton, Ryan, Aniculaesei, Constantin, Clerici, Matteo, Altmann, Yoann, Gariepy, Genevieve, McCracken, Richard, Reid, Derryck, McLaughlin, Steve, Petrovich, Marco, Hayes, John, Henderson, Robert, Faccio, Daniele and Leach, Jonathan (2017) Observation of laser pulse propagation in optical fibers with a SPAD camera. Scientific Reports, 7. (doi:10.1038/srep43302).

Record type: Article

Abstract

Recording processes and events that occur on sub-nanosecond timescales poses a difficult challenge. Conventional ultrafast imaging techniques often rely on long data collection times, which can be due to limited device sensitivity and/or the requirement of scanning the detection system to form an image. In this work, we use a single-photon avalanche detector array camera with pico-second timing accuracy to detect photons scattered by the cladding in optical fibers. We use this method to film supercontinuum generation and track a GHz pulse train in optical fibers. We also show how the limited spatial resolution of the array can be improved with computational imaging. The single-photon sensitivity of the camera and the absence of scanning the detection system results in short total acquisition times, as low as a few seconds depending on light levels. Our results allow us to calculate the group index of different wavelength bands within the supercontinuum generation process. This technology can be applied to a range of applications, e.g., the characterization of ultrafast processes, time-resolved fluorescence imaging, three-dimensional depth imaging, and tracking hidden objects around a corner.

Text
srep43302
Available under License Creative Commons Attribution.
Download (750kB)

More information

Accepted/In Press date: 24 January 2017
e-pub ahead of print date: 7 March 2017
Published date: December 2017
Keywords: Imaging and sensing, Ultrafast photonics, Single photons and quantum effects
Organisations: Optoelectronics Research Centre

Identifiers

Local EPrints ID: 410552
URI: https://eprints.soton.ac.uk/id/eprint/410552
ISSN: 2045-2322
PURE UUID: e40a6699-b030-40f9-9bae-f42fa30d0a4b
ORCID for Marco Petrovich: ORCID iD orcid.org/0000-0002-3905-5901

Catalogue record

Date deposited: 09 Jun 2017 09:05
Last modified: 03 Dec 2019 01:53

Export record

Altmetrics

Contributors

Author: Ryan Warburton
Author: Constantin Aniculaesei
Author: Matteo Clerici
Author: Yoann Altmann
Author: Genevieve Gariepy
Author: Richard McCracken
Author: Derryck Reid
Author: Steve McLaughlin
Author: Marco Petrovich ORCID iD
Author: John Hayes
Author: Robert Henderson
Author: Daniele Faccio
Author: Jonathan Leach

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.

×