We stabilized the frequency of a compact planar-waveguide external cavity laser (ECL) on a Fabry-Perot cavity (FPC) through a Pound-Drever-Hall scheme. The residual frequency stability of the ECL is 10^-14, comparable to the stability achievable with a fiber laser (FL) locked to an FPC through the same scheme. We set up an optical link of 100 km, based on fiber spools, that reaches 10^-19 relative stability, and we show that its performances using the ECL or FL are comparable. Thus ECLs could serve as an excellent replacement for FLs in optical links where cost-effectiveness and robustness are important considerations.
Planar-waveguide external cavity laser stabilization for an optical link with 10^-19 frequency stability / Clivati, Cecilia; Mura, A; Calonico, Davide; Levi, Filippo; Costanzo, Ga; Calosso, CLAUDIO ELIGIO; Godone, A.. - In: IEEE TRANSACTIONS ON ULTRASONICS FERROELECTRICS AND FREQUENCY CONTROL. - ISSN 0885-3010. - 58:12(2011), pp. 2582-2587. [10.1109/TUFFC.2011.2121]
Planar-waveguide external cavity laser stabilization for an optical link with 10^-19 frequency stability
CLIVATI, CECILIA;Mura A;CALONICO, DAVIDE;LEVI, FILIPPO;CALOSSO, CLAUDIO ELIGIO;
2011
Abstract
We stabilized the frequency of a compact planar-waveguide external cavity laser (ECL) on a Fabry-Perot cavity (FPC) through a Pound-Drever-Hall scheme. The residual frequency stability of the ECL is 10^-14, comparable to the stability achievable with a fiber laser (FL) locked to an FPC through the same scheme. We set up an optical link of 100 km, based on fiber spools, that reaches 10^-19 relative stability, and we show that its performances using the ECL or FL are comparable. Thus ECLs could serve as an excellent replacement for FLs in optical links where cost-effectiveness and robustness are important considerations.I documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.
