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RF noise induced laser perturbation for improving the performance of non-resonant cavity enhanced absorption spectroscopy.

Abstract:

We present a novel strategy for suppressing mode structure which often degrades off-axis cavity enhanced absorption spectra. This strategy relies on promoting small, random fluctuations in the optical frequency by perturbing the injection current of the diode laser source with radio frequency (RF) bandwidth-limited white noise. A fast and compact oxygen sensor, constructed from a 764 nm vertical-cavity surface-emitting laser (VCSEL) and an optical cavity with re-entrant configuration, is empl...

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Publication status:
Published

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Publisher copy:
10.1364/oe.22.017030

Authors


More by this author
Institution:
University of Oxford
Division:
MPLS
Department:
Chemistry
Sub department:
Physical & Theoretical Chem
Role:
Author
More by this author
Institution:
University of Oxford
Division:
MPLS
Department:
Chemistry
Sub department:
Physical & Theoretical Chem
Role:
Author
More by this author
Institution:
University of Oxford
Division:
MSD
Department:
Physiology Anatomy & Genetics
Role:
Author
Publisher:
Optical Society of American (OSA)
Journal:
Optics express More from this journal
Volume:
22
Issue:
14
Pages:
17030-17038
Publication date:
2014-07-01
DOI:
EISSN:
1094-4087
ISSN:
1094-4087
Language:
English
Pubs id:
pubs:478040
UUID:
uuid:e7190531-65d0-40ef-9772-99978123f393
Local pid:
pubs:478040
Source identifiers:
478040
Deposit date:
2014-08-14

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