Noise suppression for the precise measurement of Fabry-Perot cavity with wide tunable range

Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F68081731%3A_____%2F14%3A00436830" target="_blank" >RIV/68081731:_____/14:00436830 - isvavai.cz</a>
Result on the web
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DOI - Digital Object Identifier
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Result language
angličtina
Original language name
Noise suppression for the precise measurement of Fabry-Perot cavity with wide tunable range
Original language description
We present the method to suppress the frequency noise on a laser diode working at 1540 nm with wide tunable range (up to 2 nm). The noise suppression is made by an unbalanced heterodyne fiber interferometer. The frequency noise in our experiment has been suppressed by -20 dBc at Fourrier frequencies of 0-20 kHz and by more than 40 dB up to 300 Hz while the tunability range stayed untouched. The linewidth measurements show the decrease from 1.5 kHz to 300 Hz. By this method we were able to reach 10-12 uncertainty corresponding to 0.1 fm in cavity length and the tunable range of 100s of GHz corresponding to 1000s nm cavity length changes.
Czech name
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Czech description
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Project
Result was created during the realization of more than one project. More information in the Projects tab.
Continuities
P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)

Publication year
2014
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Article name in the collection
28th European Frequency and Time Forum (EFTF 2014)
ISBN
978-1-4799-5252-6
ISSN
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e-ISSN
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Number of pages
3
Pages from-to
528-530
Publisher name
IEEE
Place of publication
Piscataway
Event location
Neuchatel
Event date
Jul 23, 2014
Type of event by nationality
WRD - Celosvětová akce
UT code for WoS article
000392736300143

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