Photonic Generation of High Power, Ultrastable Microwave Signals by Vernier Effect in a Femtosecond Laser Frequency Comb
| Autor: | Khaldoun Saleh, Baptiste Marechal, Clément Lacroûte, Yann Kersalé, Ahmed Bakir, Benoit Dubois, Alexandre Didier, Jacques Millo |
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| Přispěvatelé: | Franche-Comté Électronique Mécanique, Thermique et Optique - Sciences et Technologies (UMR 6174) (FEMTO-ST), Université de Technologie de Belfort-Montbeliard (UTBM)-Ecole Nationale Supérieure de Mécanique et des Microtechniques (ENSMM)-Université de Franche-Comté (UFC), Université Bourgogne Franche-Comté [COMUE] (UBFC)-Université Bourgogne Franche-Comté [COMUE] (UBFC)-Centre National de la Recherche Scientifique (CNRS), Université de Technologie de Belfort-Montbeliard (UTBM)-Ecole Nationale Supérieure de Mécanique et des Microtechniques (ENSMM)-Centre National de la Recherche Scientifique (CNRS)-Université de Franche-Comté (UFC), Université Bourgogne Franche-Comté [COMUE] (UBFC)-Université Bourgogne Franche-Comté [COMUE] (UBFC), Université de Franche-Comté (UFC)-Centre National de la Recherche Scientifique (CNRS)-Ecole Nationale Supérieure de Mécanique et des Microtechniques (ENSMM)-Université de Technologie de Belfort-Montbeliard (UTBM) |
| Rok vydání: | 2017 |
| Předmět: |
Power gain
[SPI.OTHER]Engineering Sciences [physics]/Other Materials science Physics - Instrumentation and Detectors lcsh:Medicine Physics::Optics FOS: Physical sciences 02 engineering and technology 01 natural sciences Article 010309 optics Resonator Laser linewidth Frequency comb 020210 optoelectronics & photonics 0103 physical sciences 0202 electrical engineering electronic engineering information engineering [PHYS.PHYS.PHYS-INS-DET]Physics [physics]/Physics [physics]/Instrumentation and Detectors [physics.ins-det] lcsh:Science Author Correction Spectral purity Multidisciplinary business.industry lcsh:R Instrumentation and Detectors (physics.ins-det) [PHYS.PHYS.PHYS-GEN-PH]Physics [physics]/Physics [physics]/General Physics [physics.gen-ph] 3. Good health Optoelectronics Power dividers and directional couplers lcsh:Q Photonics business Microwave Physics - Optics Optics (physics.optics) |
| Zdroj: | Scientific Reports Scientific Reports, Nature Publishing Group, 2018, 8, pp.1997. ⟨10.1038/s41598-018-20408-y⟩ Scientific Reports, Vol 8, Iss 1, Pp 1-11 (2018) Scientific Reports, Nature Publishing Group, 2018, 8 (1997), pp.6 Sci.Rep. Sci.Rep., 2018, 8, pp.1997. ⟨10.1038/s41598-018-20408-y⟩ |
| ISSN: | 2045-2322 |
| DOI: | 10.1038/s41598-018-20408-y⟩ |
| Popis: | Optical frequency division of an ultrastable laser to the microwave frequency range by an optical frequency comb has allowed the generation of microwave signals with unprecedently high spectral purity and stability. However, the generated microwave signal will suffer from a very low power level if no external optical frequency comb repetition rate multiplication device is used. This paper reports theoretical and experimental studies on the beneficial use of the Vernier effect together with the spectral selective filtering in a double directional coupler add-drop optical fibre ring resonator to increase the comb repetition rate and generate high power microwaves. The studies are focused on two selective filtering aspects: the high rejection of undesirable optical modes of the frequency comb and the transmission of the desirable modes with the lowest possible loss. Moreover, the conservation of the frequency comb stability and linewidth at the resonator output is particularly considered. Accordingly, a fibre ring resonator is designed, fabricated, and characterized, and a technique to stabilize the resonator's resonance comb is proposed. A significant power gain is achieved for the photonically generated beat note at 10 GHz. Routes to highly improve the performances of such proof-of-concept device are also discussed. Comment: 16 Pages, 13 Figures |
| Databáze: | OpenAIRE |
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