Full phase stabilization of a Yb:fiber femtosecond frequency comb via high-bandwidth transducers

Abstract

We present full phase stabilization of an amplified Yb:fiber femtosecond frequency comb using an intra-cavity electro-optic modulator and an acousto-optic modulator. These transducers provide high servo bandwidths of 580 kHz and 250 kHz for frep and fceo, producing a robust and low phase noise fiber frequency comb. The comb was self-referenced with an f - 2f interferometer and phase locked to an ultra-stable optical reference used for the JILA Sr optical clock at 698 nm, exhibiting 0.21 rad and 0.47 rad of integrated phase errors (over 1 mHz - 1 MHz) respectively. Alternatively, the comb was locked to two optical references at 698 nm and 1064 nm, obtaining 0.43 rad and 0.14 rad of integrated phase errors respectively.

References in corpus (5)

• Sr lattice clock at 1x10^{-16} fractional uncertainty by remote optical evaluation with a Ca clock
• Direct Frequency Comb Spectroscopy in the Extreme Ultraviolet
• Ultra-Broadband Coherent Supercontinuum Frequency Comb
• Sub-100 attoseconds optics-to-microwave synchronization
• Broadband Phase-Noise Suppression in a Yb-Fiber Frequency Comb

Cited by in corpus (9)

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• Low-noise 750-MHz spaced Yb:fiber frequency combs
• Interrogating the temporal coherence of EUV frequency combs with highly charged ions
• Tunable visible frequency combs from a Yb-fiber-laser-pumped optical parametric oscillator
• Nonlinear Fiber System for Shot-noise Limited Intensity Noise Suppression and Amplification
• Tenfold reduction of Brownian noise in optical interferometry
• Steering optical comb frequency by rotating polarization state