TY - ECHAP
AU - Jun Ye
AU - John Hall
AU - J. Jost
AU - L.-S. Ma
AU - J.-L. Peng
AB - We demonstrate a simple optical clock based on an optical transition of iodine molecules, providing a frequency stability superior to most rf sources. Combined with a femtosecond-laser-based optical comb to provide the phase coherent clock mechanism linking the optical and microwave spectra, we derive an rf clock signal of comparable stability over an extended period. In fact, the stability (5 × 10−14 at 1 s) of the cw laser locked on the iodine transition is transferred to every comb component throughout the optical octave bandwidth (from 532 nm to 1064 nm) with a precision of 3.5 × 10−15. Stability characterization of the optical clock is below 3 × 10−13 at 1 s (currently limited by the microwave sources). The long-term stability of this simple optical standard is demonstrated to be better than 4.6 × 10−13 over a year. To realize a genuine optical frequency synthesizer, another widely tunable single-frequency cw laser has been employed to randomly access the stabilized optical comb and lock to a desired comb component. The goal is to generate on demand a highly stable single-frequency optical signal in any part of the visible spectrum with a useful output power.
DA - 2001-01
DO - 10.1142/9789812778307_0012
N2 - We demonstrate a simple optical clock based on an optical transition of iodine molecules, providing a frequency stability superior to most rf sources. Combined with a femtosecond-laser-based optical comb to provide the phase coherent clock mechanism linking the optical and microwave spectra, we derive an rf clock signal of comparable stability over an extended period. In fact, the stability (5 × 10−14 at 1 s) of the cw laser locked on the iodine transition is transferred to every comb component throughout the optical octave bandwidth (from 532 nm to 1064 nm) with a precision of 3.5 × 10−15. Stability characterization of the optical clock is below 3 × 10−13 at 1 s (currently limited by the microwave sources). The long-term stability of this simple optical standard is demonstrated to be better than 4.6 × 10−13 over a year. To realize a genuine optical frequency synthesizer, another widely tunable single-frequency cw laser has been employed to randomly access the stabilized optical comb and lock to a desired comb component. The goal is to generate on demand a highly stable single-frequency optical signal in any part of the visible spectrum with a useful output power.
PB - World Scientific
PY - 2002
SN - 9789810247812/9810247818
EP - 97
TI - Coherent Optical Frequency Synthesis and Distribution
ER -