High-resolution detection of small distance changes by an optical frequency comb

O. Číp; M. Čížek; Z. Buchta; B. Mikel; Josef Lazar; R. Šmíd

doi:10.1117/12.2012651

18 December 2012 High-resolution detection of small distance changes by an optical frequency comb

O. Číp, M. Čížek, Z. Buchta, B. Mikel, Josef Lazar, R. Šmíd

Author Affiliations +

Proceedings Volume 8697, 18th Czech-Polish-Slovak Optical Conference on Wave and Quantum Aspects of Contemporary Optics; 86970G (2012) https://doi.org/10.1117/12.2012651
Event: 18th Czech-Polish-Slovak Optical Conference on Wave and Quantum Aspects of Contemporary Optics, 2012, Ostravice, Czech Republic

Abstract

The work presents a measurement of lengths by an optical measuring resonator. The resonator works as distance-to-optical frequency converter with ultimate linearity. It has locked a tunable laser to certain cavity mode. The optical frequency of the laser is heterodyned with immediate “tooth” of the femtosecond comb spectrum. For the testing of the method the special combination of the optical resonator and Michelson interferometer was put together. This system combines the cavity length of the optical resonator with the measuring arm of the Michelson laser interferometer. The one mirror of the system is common for both laser interferometers and it is driven by piezoelectric transducer. The testing range is limited by the range of tuneability of the used laser and it covers 1000 nm of the length measurement.

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O. Číp, O. Číp, M. Čížek, M. Čížek, Z. Buchta, Z. Buchta, B. Mikel, B. Mikel, Josef Lazar, Josef Lazar, R. Šmíd, R. Šmíd, "High-resolution detection of small distance changes by an optical frequency comb", Proc. SPIE 8697, 18th Czech-Polish-Slovak Optical Conference on Wave and Quantum Aspects of Contemporary Optics, 86970G (18 December 2012); doi: 10.1117/12.2012651; https://doi.org/10.1117/12.2012651

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