Noise Suppression on the Tunable Laser for Precise Cavity Length Displacement Measurement

Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F68081731%3A_____%2F16%3A00463114" target="_blank" >RIV/68081731:_____/16:00463114 - isvavai.cz</a>
Result on the web
<a href="http://dx.doi.org/10.3390/s16091428" target="_blank" >http://dx.doi.org/10.3390/s16091428</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.3390/s16091428" target="_blank" >10.3390/s16091428</a>

Result language
angličtina
Original language name
Noise Suppression on the Tunable Laser for Precise Cavity Length Displacement Measurement
Original language description
The absolute distance between the mirrors of a Fabry-Perot cavity with a spacer from an ultra low expansion material was measured by an ultra wide tunable laser diode. The DFB laserndiode working at 1542 nm with 1.5 MHz linewidth and 2 nm tuning range has been suppressed with an unbalanced heterodyne fiber interferometer. The frequency noise of laser has been suppressed by 40 dB across the Fourier frequency range 30–300 Hz and by 20 dB up to 4 kHz and the linewidth of the laser below 300 kHz. The relative resolution of the measurement was 10-9 that corresponds to 0.3 nm (sub-nm) for 0.178 m long cavity with ability of displacement measurement of 0.5 mm.
Czech name
—
Czech description
—

Type
J<sub>x</sub> - Unclassified - Peer-reviewed scientific article (Jimp, Jsc and Jost)
CEP classification
BH - Optics, masers and lasers
OECD FORD branch
—

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

Similar results(10)