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Optical amplification for quantum sources of ultra-stable optical frequency
Author(s): Josef Vojtech; Ondrej Havlis; Martin Slapak; Jan Radil; Petr Munster; Tomas Horvath; Lada Altmannova; Radek Velc; Jan Kundrat; Rudolf Vohnout; Pavel Skoda; Michal Altmann; Vladimir Smotlacha; Michal Hazlinsky; Ondrej Cip; Martin Cizek; Jan Hrabina; Lenka Pravdova; Vaclav Hucl; Simon Rerucha
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Paper Abstract

The reach of any all-optical transmission is limited by attenuation of transmission path and other factors as signal to noise ratio, and it can be extended by all-optical amplification. Bidirectional single fibre transmission introduces an issue of bidirectional symmetrical amplifiers in order not to lose advantage of path symmetry. In case of time transfer, quasibidirectional amplification might be acceptable when supported by specific arrangements, e.g. as much as possible equal arrangement for disjoint segments of the path. Time transfer with best available accuracy or optical frequency transfers require single path optical amplifiers that are further considered. In this constitution, unfortunately, reflections together with Rayleigh back-scattering will create feedback. In case feedback is strong enough and discrete amplifier operates in high gain regime (about 20dB), the whole system will start to oscillate. It saturates the gain of amplifiers and also can generate errors, when lasing in a transmission band. In the article, we review possible all optical amplification methods including those allowing to use untraditional transmission bands (outside C band).

Paper Details

Date Published: 18 December 2018
PDF: 5 pages
Proc. SPIE 10976, 21st Czech-Polish-Slovak Optical Conference on Wave and Quantum Aspects of Contemporary Optics, 109760Q (18 December 2018); doi: 10.1117/12.2513641
Show Author Affiliations
Josef Vojtech, CESNET z.s.p.o. (Czech Republic)
Ondrej Havlis, CESNET z.s.p.o. (Czech Republic)
Martin Slapak, CESNET z.s.p.o. (Czech Republic)
Jan Radil, CESNET z.s.p.o. (Czech Republic)
Petr Munster, CESNET z.s.p.o. (Czech Republic)
Tomas Horvath, CESNET z.s.p.o. (Czech Republic)
Lada Altmannova, CESNET z.s.p.o. (Czech Republic)
Radek Velc, CESNET z.s.p.o. (Czech Republic)
Jan Kundrat, CESNET z.s.p.o. (Czech Republic)
Rudolf Vohnout, CESNET z.s.p.o. (Czech Republic)
Pavel Skoda, CESNET z.s.p.o. (Czech Republic)
Michal Altmann, CESNET z.s.p.o. (Czech Republic)
Vladimir Smotlacha, CESNET z.s.p.o. (Czech Republic)
Michal Hazlinsky, CESNET z.s.p.o. (Czech Republic)
Ondrej Cip, Institute of Scientific Instruments of the CAS, v.v.i. (Czech Republic)
Martin Cizek, Institute of Scientific Instruments of the CAS, v.v.i. (Czech Republic)
Jan Hrabina, Institute of Scientific Instruments of the CAS, v.v.i. (Czech Republic)
Lenka Pravdova, Institute of Scientific Instruments of the CAS, v.v.i. (Czech Republic)
Vaclav Hucl, Institute of Scientific Instruments of the CAS, v.v.i. (Czech Republic)
Simon Rerucha, Institute of Scientific Instruments of the CAS, v.v.i. (Czech Republic)


Published in SPIE Proceedings Vol. 10976:
21st Czech-Polish-Slovak Optical Conference on Wave and Quantum Aspects of Contemporary Optics
Pavel Zemánek, Editor(s)

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