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Active feedback regulation of a Michelson interferometer to achieve zero-background absorption measurements

Lundin, Patrik LU ; Guan, Zuguang LU and Svanberg, Sune LU (2011) In Applied Optics 50(3). p.373-378
Abstract
An active phase-controlling scheme based on a proportional-integral-derivative-controlled piezoelectric transducer is presented with the purpose of stabilizing a quasi-zero-background absorption spectrometer. A fiber-based balanced Michelson interferometer is used, and absorption due to a gas sample in one of its arms results in an increased light signal to a detector, which otherwise, thanks to destructive interference, experiences a very low light level. With the presented approach, the sensitivity of already potent absorption measurement techniques, e.g., based on modulation, could be improved even further. (C) 2011 Optical Society of America
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author
organization
publishing date
type
Contribution to journal
publication status
published
subject
in
Applied Optics
volume
50
issue
3
pages
373 - 378
publisher
OSA
external identifiers
  • wos:000286507600022
  • scopus:78751618652
ISSN
2155-3165
DOI
10.1364/AO.50.000373
language
English
LU publication?
yes
id
ae6c67dd-0b64-41c0-a72f-64c2971d6732 (old id 1870219)
date added to LUP
2011-04-19 10:54:42
date last changed
2017-01-01 03:06:42
@article{ae6c67dd-0b64-41c0-a72f-64c2971d6732,
  abstract     = {An active phase-controlling scheme based on a proportional-integral-derivative-controlled piezoelectric transducer is presented with the purpose of stabilizing a quasi-zero-background absorption spectrometer. A fiber-based balanced Michelson interferometer is used, and absorption due to a gas sample in one of its arms results in an increased light signal to a detector, which otherwise, thanks to destructive interference, experiences a very low light level. With the presented approach, the sensitivity of already potent absorption measurement techniques, e.g., based on modulation, could be improved even further. (C) 2011 Optical Society of America},
  author       = {Lundin, Patrik and Guan, Zuguang and Svanberg, Sune},
  issn         = {2155-3165},
  language     = {eng},
  number       = {3},
  pages        = {373--378},
  publisher    = {OSA},
  series       = {Applied Optics},
  title        = {Active feedback regulation of a Michelson interferometer to achieve zero-background absorption measurements},
  url          = {http://dx.doi.org/10.1364/AO.50.000373},
  volume       = {50},
  year         = {2011},
}