Hybrid laser integration in the mid-IR for silicon photonics sensing applications
Hybrid laser integration in the mid-IR for silicon photonics sensing applications
Quantum Cascade Lasers operating between 5.7 and 5.9 µm have been integrated on to a Germanium-on-Silicon (GoS) platform by flip-chip bonding. Sensing in this wavelength region is useful for a wide range of applications from monitoring caffeine and sweeteners, to analysis of oestrogen composition, which plays an important role in the metastatic spread of breast cancer. The approach demonstrated here uses laser bars incorporating twenty-four separate laser sources. Further enhancements of this system from the first generation are presented, including real-time power monitoring of the QCL output via fibre-coupling, more efficient gratings, improved support-structures and process improvements for both the QCL and GoS.
hybrid integration, Silicon Photonics, Germanium, QCL
Mitchell, Colin J.
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Osman, Ahmed
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Li, Ke
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Soler penades, Jordi
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Nedeljkovic, Milos
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Zhou, Longqi
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Groom, Kristian M.
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Heffernan, Jon
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Mashanovich, Goran
c806e262-af80-4836-b96f-319425060051
13 March 2023
Mitchell, Colin J.
0e48c936-a405-434d-818a-d83e382aa826
Osman, Ahmed
eb387b50-c718-47df-ac90-97b2efd3e335
Li, Ke
dd788ca7-0a39-4364-b4b8-65f0bb93340f
Soler penades, Jordi
f18f3619-0d71-4547-95fd-dd38c37b7adb
Nedeljkovic, Milos
b64e21c2-1b95-479d-a35c-3456dff8c796
Zhou, Longqi
f296d143-603b-45de-bca5-cfd08aaf80cf
Groom, Kristian M.
ebc13b46-892c-4b9a-9c30-c2bf32e6bd3a
Heffernan, Jon
1bdedcbb-5ce1-4d4c-8094-d393b47397b5
Mashanovich, Goran
c806e262-af80-4836-b96f-319425060051
Mitchell, Colin J., Osman, Ahmed, Li, Ke, Soler penades, Jordi, Nedeljkovic, Milos, Zhou, Longqi, Groom, Kristian M., Heffernan, Jon and Mashanovich, Goran
(2023)
Hybrid laser integration in the mid-IR for silicon photonics sensing applications.
Reed, Graham T. and Knights, Andrew P.
(eds.)
In Silicon Photonics XVIII.
vol. 12426
(doi:10.1117/12.2650054).
Record type:
Conference or Workshop Item
(Paper)
Abstract
Quantum Cascade Lasers operating between 5.7 and 5.9 µm have been integrated on to a Germanium-on-Silicon (GoS) platform by flip-chip bonding. Sensing in this wavelength region is useful for a wide range of applications from monitoring caffeine and sweeteners, to analysis of oestrogen composition, which plays an important role in the metastatic spread of breast cancer. The approach demonstrated here uses laser bars incorporating twenty-four separate laser sources. Further enhancements of this system from the first generation are presented, including real-time power monitoring of the QCL output via fibre-coupling, more efficient gratings, improved support-structures and process improvements for both the QCL and GoS.
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More information
Published date: 13 March 2023
Venue - Dates:
SPIE Photonics West 2023, The Moscone Center, San Francisco, United States, 2023-01-28 - 2023-02-02
Keywords:
hybrid integration, Silicon Photonics, Germanium, QCL
Identifiers
Local EPrints ID: 494221
URI: http://eprints.soton.ac.uk/id/eprint/494221
PURE UUID: 8e30c193-75d3-4131-9731-71a5734bed05
Catalogue record
Date deposited: 01 Oct 2024 16:36
Last modified: 29 Oct 2024 02:45
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Contributors
Author:
Colin J. Mitchell
Author:
Ahmed Osman
Author:
Ke Li
Author:
Jordi Soler penades
Author:
Milos Nedeljkovic
Author:
Longqi Zhou
Author:
Kristian M. Groom
Author:
Jon Heffernan
Author:
Goran Mashanovich
Editor:
Graham T. Reed
Editor:
Andrew P. Knights
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