Remotely manageable phase-locked loop controller for stabilizing optical frequency combs

Result code in IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F68081731%3A_____%2F14%3A00434226" target="_blank" >RIV/68081731:_____/14:00434226 - isvavai.cz</a>

Result on the web

<a href="http://dx.doi.org/10.1109/URSIGASS.2014.6929047" target="_blank" >http://dx.doi.org/10.1109/URSIGASS.2014.6929047</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1109/URSIGASS.2014.6929047" target="_blank" >10.1109/URSIGASS.2014.6929047</a>

Result language

angličtina

Original language name

Remotely manageable phase-locked loop controller for stabilizing optical frequency combs

Original language description

The optical frequency synthesizers (femtosecond combs) are used mainly in the field of precise measurement of optical frequencies, laser spectroscopy and interferometer distance surveying. They generates thousands narrow-linewidth coherent frequencies at the same time. The spacing of generated components is equaled to the repetition frequency of femtosecond pulses of the laser. The position of the comb spectrum has a frequency offset that is derived from carrier to envelope frequency difference. The repetition frequency and mentioned frequency offset belong to main controlled parameters of this synthesizer. These two parameters are controlled by ultra-stable frequency standards i.e. H-masers, Cs- or Rb- clocks. We present the complete digital signal processing chain for phase-locked loop (PLL) control of the offset frequency. The setup is able to overcome some dropouts causes the femtosecond laser non-stabilities (temperature drifts, ripple noise and electricity spikes). It is designed as two stage control loop, where controlled offset frequency is permanently monitored by a digital signal processing. In case of dropouts of PLL, the frequency-locked loop keeps the controlled frequency in the required limits. The presented work gives the possibility to long-time operation of femtosecond combs which is necessary when the optical frequency stability measurement of ultra-stable lasers is required. The detailed description of the modern solution of the PLL with remote management is presented.

Czech name

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Czech description

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Type

D - Article in proceedings

CEP classification

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OECD FORD branch

10306 - Optics (including laser optics and quantum optics)

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

General Assembly and Scientific Symposium (URSI GASS), 2014 XXXIth URSI (Proceedings IEEE)

ISBN

978-1-4673-5225-3

ISSN

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e-ISSN

—

Number of pages

4

Pages from-to

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Publisher name

IEEE

Place of publication

Piscataway

Event location

Beijing

Event date

Aug 16, 2014

Type of event by nationality

WRD - Celosvětová akce

UT code for WoS article

000366628700066