The low-dispersive optical cavity as a length sensor using radiation of an optical frequency comb

Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F68081731%3A_____%2F16%3A00464545" target="_blank" >RIV/68081731:_____/16:00464545 - isvavai.cz</a>
Result on the web
—
DOI - Digital Object Identifier
—

Result language
angličtina
Original language name
The low-dispersive optical cavity as a length sensor using radiation of an optical frequency comb
Original language description
New lasers, special digital signal processing electronics, algorithms and new materials for optics enabled development of new absolute distance measurement methods. The phenomenon of the mode-lock of the femtosecond pulse laser increased a number of potential applications with distance surveying where a stable generator of very short and periodically repeated coherent pulses can be used. The aim of the work is a presentation of our unique measuring method which determines the length of unknown distance with direct traceability to a time standard. The principle is based on a passive optical cavity with mirrors keeping distance to be measured. Time spacing of short femtosecond pulses generated by optical frequency comb is optically phase locked to the cavity free spectral range. A value of the repetition frequency of the laser determines the measured distance in that case. The exact value of the frequency/period of the femtosecond pulse train is detected by a frequency counter. The counting gate of the counter is synchronized with a highly stable oscillator disciplined by H-maser. This measuring technique is demonstrated in the work on length characterization of the piezoelectric transducers which belongs to high-resolution positioning actuators
Czech name
—
Czech description
—

Project
Result was created during the realization of more than one project. More information in the Projects tab.
Continuities
I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Publication year
2016
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Article name in the collection
EUSPEN 2016. Proceedings of the 16th International Conference of the European Society for Precision Engineering and Nanotechnology
ISBN
978-095667908-6
ISSN
—
e-ISSN
—
Number of pages
3
Pages from-to
"P1.73.1"-"P1.73.3"
Publisher name
Euspen
Place of publication
Nottingham
Event location
Nottingham
Event date
May 30, 2016
Type of event by nationality
WRD - Celosvětová akce
UT code for WoS article
—

Similar results(10)