title: Planar-waveguide external cavity laser stabilization for an optical link with 10(-19) frequency stability.
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.
authors: Istituto Nazionale di Ricerca Metrologica, Torino, Italia. c.clivati@inrim.it
authors: Cecilia
authors: C
authors: Clivati
authors: Alberto
authors: A
authors: Mura
authors: Davide
authors: D
authors: Calonico
authors: Filippo
authors: F
authors: Levi
authors: Giovanni A
authors: GA
authors: Costanzo
authors: Claudio E
authors: CE
authors: Calosso
authors: Aldo
authors: A
authors: Godone
mesh_terms: D004867:Equipment Design; D019544:Equipment Failure Analysis; D005246:Feedback; D005336:Fiber Optic Technology / Q000295:instrumentation*; D007368:Interferometry / Q000295:instrumentation*; D007834:Lasers; D055617:Micro-Electrical-Mechanical Systems / Q000295:instrumentation*; D055096:Optical Devices; D020349:Surface Plasmon Resonance / Q000295:instrumentation*; D013685:Telecommunications / Q000295:instrumentation*