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Open Access
A frequency comb is used as a set of coherent local oscillators to downconvert and spectrally compress white light that has been periodically filtered by a Fabry-Perot etalon. Multiheterodyne detection allows white light spread across 100 GHz of optical spectrum to be compressed to 5 GHz of radio frequency (RF) bandwidth for electronic sampling on an oscilloscope. Correlations are observed at delays of up to 20 km with a minimum resolution of less than 1 mm. Calculations show that resolution may be easily increased by increasing etalon finesse and frequency comb bandwidth.
Published in:
Photonics Journal, IEEE
(Volume:4
,
Issue:
2
)
Date of Publication: April 2012
- Page(s):
- 504 - 511
- ISSN :
- 1943-0655
- INSPEC Accession Number:
- 12637641
- Digital Object Identifier :
- 10.1109/JPHOT.2012.2191768
- Product Type:
- Journals & Magazines
- Date of Publication :
- 23 March 2012
- Date of Current Version :
- 09 April 2012
- Issue Date :
- April 2012
- Sponsored by :
- IEEE Photonics Society
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