Open AccessPhase-locked carrier-envelope-offset frequency at 1560 nm
Author(s) -
H. Hundertmark,
Dieter Wandt,
Carsten Fallnich,
Nils Haverkamp,
H.R. Telle
Publication year - 2004
Publication title -
optics express
Language(s) - Uncategorized
Resource type - Journals
SCImago Journal Rank - 1.394
H-Index - 271
ISSN - 1094-4087
DOI - 10.1364/opex.12.000770
Subject(s) - supercontinuum , frequency comb , optics , frequency offset , materials science , phase noise , photonic crystal fiber , comb generator , interferometry , offset (computer science) , physics , optoelectronics , optical fiber , telecommunications , laser , orthogonal frequency division multiplexing , computer science , channel (broadcasting) , programming language
We report on the measurement of an Erbium-fiber oscillator's carrier-envelope-offset frequency using an extruded SF6 photonic crystal fiber for the generation of a more than two octave-spanning supercontinuum from 400 nm to beyond 1750 nm. A modified type of f-2f-interferometer was employed, beating the frequency doubled input signal of the fiber oscillator with the supercontinuum to generate the carrier-envelope-offset beat. Controlling the fiber oscillator's pump power with an electronic feedback loop, we phase-locked the carrier-envelope-offset frequency to an external reference source. The resulting residual phase excursions correspond to fractional frequency instabilities of the oscillator's frequency comb of the order of 10(-16) for averaging times longer than 10 s.