Low-noise 750-MHz spaced Yb:fiber frequency combs

Abstract

We demonstrate two fully and tightly phase locked 750 MHz ytterbium (Yb) fiber frequency combs that are independently stabilized to a continuous wave (CW) laser with <1 rad RMS phase error. A bulk EOM and a single stack PZT are separately utilized as the fast actuators for cavity length stabilization. The carrier envelop frequencies are phase locked by single loop feedback to laser diode current, showing 1.6 MHz servo bumps. The in-loop fractional frequency instabilities are ~1.5e-18 at 1s for both combs. To the best of our knowledge, this is the highest repetition rate in fiber based low phase noise combs tightly locked to optical frequency reference.

arXiv comment4 pages, 5 figures, 1 table

References in corpus (7)

• Generation of Ultrastable Microwaves via Optical Frequency Division
• A laser frequency comb that enables radial velocity measurements with a precision of 1 cm s${}^{-1}$
• Full Stabilization of a Microresonator based Optical Frequency Comb
• Ultra-low noise microwave generation with fiber-based optical frequency comb and application to atomic fountain clock
• Simple piezoelectric-actuated mirror with 180 kHz servo bandwidth
• Full phase stabilization of a Yb:fiber femtosecond frequency comb via high-bandwidth transducers
• Characterizing a fiber-based frequency comb with electro-optic modulator

Cited by in corpus (3)

• 20 years of developments in optical frequency comb technology and applications
• Quasi-real-time dual-comb spectroscopy with 750-MHz Yb:fiber combs
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