"14291" . "\u00DAstav p\u0159\u00EDstrojov\u00E9 techniky AV \u010CR" . "RIV/68081731:_____/14:00434551!RIV15-GA0-68081731" . . . . . . . "\u0160m\u00EDd, Radek" . "\u010C\u00ED\u017Eek, Martin" . "Optical frequency synthesizers (femtosecond combs) are used mainly in the field of precise measurement of optical frequencies, laser spectroscopy and interferometer distance surveying. The repetition and offset frequencies belong to main controlled parameters of such synthesizer. These two parameters need to be locked to 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 repetition and offset frequency. The setup is able to overcome some dropouts causes the femtosecond laser instabilities. The presented work gives the possibility of long-time operation of femtosecond combs which is necessary when the optical frequency stability measurement of ultra-stable lasers is performed."@en . . "Sborn\u00EDk p\u0159\u00EDsp\u011Bvk\u016F multioborov\u00E9 konference Laser54" . "5"^^ . . . . "I, P(ED0017/01/01), P(GAP102/10/1813), P(GPP102/12/P962), P(LO1212)" . "Elektronika pro stabilizaci optick\u00FDch frekven\u010Dn\u00EDch h\u0159eben\u016F" . "2014-10-29+01:00"^^ . "V\u011Bt\u0161ina experiment\u016F vyu\u017E\u00EDvaj\u00EDc\u00EDch optick\u00FD h\u0159eben (komb) vy\u017Eaduje frekven\u010Dn\u00ED a f\u00E1zov\u00E9 zav\u011B\u0161en\u00ED repeti\u010Dn\u00ED frekvence frep a offsetov\u00E9 frekvence fCEO na stabiln\u00ED RF referen\u010Dn\u00ED sign\u00E1l generovan\u00FD z vysoce p\u0159esn\u00E9ho oscil\u00E1toru (H-maser, GPSDO). K zabr\u00E1n\u011Bn\u00ED tepeln\u00E9mu a mechanick\u00E9mu ovliv\u0148ov\u00E1n\u00ED experiment\u00E1ln\u00EDch sestav a optick\u00E9ho h\u0159ebene p\u0159i dlouhodob\u00FDch experimentech je z\u00E1rove\u0148 nanejv\u00FD\u0161 \u017E\u00E1douc\u00ED v maxim\u00E1ln\u00ED mo\u017En\u00E9 m\u00ED\u0159e omezit dobu pobytu osob v laborato\u0159i. Tyto d\u016Fvody n\u00E1s vedly ke zkonstruov\u00E1n\u00ED d\u00E1lkov\u011B ovl\u00E1dan\u00E9ho syst\u00E9mu pro d\u00E1lkov\u011B pro dlouhodobou stabilizaci optick\u00E9ho frekven\u010Dn\u00EDho h\u0159ebene. V na\u0161em p\u0159\u00EDpad\u011B jsme stabilizovali optovl\u00E1knov\u00FD komb FC1500 od firmy Menlo Systems. Stabilizace prob\u00EDh\u00E1 ve dvou nez\u00E1visl\u00FDch smy\u010Dk\u00E1ch f\u00E1zov\u00E9ho z\u00E1v\u011Bsu. V prvn\u00ED smy\u010Dce doch\u00E1z\u00ED k regulaci repeti\u010Dn\u00ED frekvence fs laseru, kde vyu\u017E\u00EDv\u00E1me v\u00FDstupn\u00ED sign\u00E1l fotodetektoru monitoruj\u00EDc\u00EDho v\u00FDstup fs laseru jako zp\u011Btnou vazbu. V druh\u00E9 smy\u010Dce regulujeme offsetovou frekvenci na z\u00E1klad\u011B zp\u011Btn\u00E9 vazby zprost\u0159edkovan\u00E9 v\u00FDstupn\u00EDm sign\u00E1lem f-2f interferometru. Regulace je realizov\u00E1na ve dvou \u0159\u00E1dech. Prvn\u00ED \u0159\u00E1d tvo\u0159en\u00FD rychl\u00FDm regul\u00E1torem s obvodem AD9956 s omezen\u00FDm rozsahem p\u0159elad\u011Bn\u00ED je dopln\u011Bn pomalej\u0161\u00EDm regul\u00E1torem druh\u00E9ho \u0159\u00E1du s velk\u00FDm v\u00FDstupn\u00EDm dynamick\u00FDm rozsahem realizovan\u00FDm s vyu\u017Eit\u00EDm digit\u00E1ln\u00EDho sign\u00E1lov\u00E9ho procesoru. Elektronika je p\u0159ipojena na komunika\u010Dn\u00ED sb\u011Brnici CAN, co\u017E umo\u017E\u0148uje vzd\u00E1len\u011B ovl\u00E1dat cel\u00E9 za\u0159\u00EDzen\u00ED z prost\u0159ed\u00ED LabView." . "Elektronika pro stabilizaci optick\u00FDch frekven\u010Dn\u00EDch h\u0159eben\u016F" . "\u010C\u00EDp, Ond\u0159ej" . "Unit for stabilizing optical frequency combs"@en . "V\u011Bt\u0161ina experiment\u016F vyu\u017E\u00EDvaj\u00EDc\u00EDch optick\u00FD h\u0159eben (komb) vy\u017Eaduje frekven\u010Dn\u00ED a f\u00E1zov\u00E9 zav\u011B\u0161en\u00ED repeti\u010Dn\u00ED frekvence frep a offsetov\u00E9 frekvence fCEO na stabiln\u00ED RF referen\u010Dn\u00ED sign\u00E1l generovan\u00FD z vysoce p\u0159esn\u00E9ho oscil\u00E1toru (H-maser, GPSDO). K zabr\u00E1n\u011Bn\u00ED tepeln\u00E9mu a mechanick\u00E9mu ovliv\u0148ov\u00E1n\u00ED experiment\u00E1ln\u00EDch sestav a optick\u00E9ho h\u0159ebene p\u0159i dlouhodob\u00FDch experimentech je z\u00E1rove\u0148 nanejv\u00FD\u0161 \u017E\u00E1douc\u00ED v maxim\u00E1ln\u00ED mo\u017En\u00E9 m\u00ED\u0159e omezit dobu pobytu osob v laborato\u0159i. Tyto d\u016Fvody n\u00E1s vedly ke zkonstruov\u00E1n\u00ED d\u00E1lkov\u011B ovl\u00E1dan\u00E9ho syst\u00E9mu pro d\u00E1lkov\u011B pro dlouhodobou stabilizaci optick\u00E9ho frekven\u010Dn\u00EDho h\u0159ebene. V na\u0161em p\u0159\u00EDpad\u011B jsme stabilizovali optovl\u00E1knov\u00FD komb FC1500 od firmy Menlo Systems. Stabilizace prob\u00EDh\u00E1 ve dvou nez\u00E1visl\u00FDch smy\u010Dk\u00E1ch f\u00E1zov\u00E9ho z\u00E1v\u011Bsu. V prvn\u00ED smy\u010Dce doch\u00E1z\u00ED k regulaci repeti\u010Dn\u00ED frekvence fs laseru, kde vyu\u017E\u00EDv\u00E1me v\u00FDstupn\u00ED sign\u00E1l fotodetektoru monitoruj\u00EDc\u00EDho v\u00FDstup fs laseru jako zp\u011Btnou vazbu. V druh\u00E9 smy\u010Dce regulujeme offsetovou frekvenci na z\u00E1klad\u011B zp\u011Btn\u00E9 vazby zprost\u0159edkovan\u00E9 v\u00FDstupn\u00EDm sign\u00E1lem f-2f interferometru. Regulace je realizov\u00E1na ve dvou \u0159\u00E1dech. Prvn\u00ED \u0159\u00E1d tvo\u0159en\u00FD rychl\u00FDm regul\u00E1torem s obvodem AD9956 s omezen\u00FDm rozsahem p\u0159elad\u011Bn\u00ED je dopln\u011Bn pomalej\u0161\u00EDm regul\u00E1torem druh\u00E9ho \u0159\u00E1du s velk\u00FDm v\u00FDstupn\u00EDm dynamick\u00FDm rozsahem realizovan\u00FDm s vyu\u017Eit\u00EDm digit\u00E1ln\u00EDho sign\u00E1lov\u00E9ho procesoru. Elektronika je p\u0159ipojena na komunika\u010Dn\u00ED sb\u011Brnici CAN, co\u017E umo\u017E\u0148uje vzd\u00E1len\u011B ovl\u00E1dat cel\u00E9 za\u0159\u00EDzen\u00ED z prost\u0159ed\u00ED LabView."@cs . . "Elektronika pro stabilizaci optick\u00FDch frekven\u010Dn\u00EDch h\u0159eben\u016F"@cs . . . . "Unit for stabilizing optical frequency combs"@en . "2"^^ . "RIV/68081731:_____/14:00434551" . . . . "Hucl, V\u00E1clav" . "978-80-87441-13-8" . "[55191DDB6DD6]" . . "Brno" . . "analog and digital electronics; signal processing; femtosecond laser"@en . "Lazar, Josef" . . "Elektronika pro stabilizaci optick\u00FDch frekven\u010Dn\u00EDch h\u0159eben\u016F"@cs . . "T\u0159e\u0161\u0165" . . . "5"^^ . .