Laser-Frequency Stabilization Based on Steady-State Spectral-Hole Burning in Eu^{3 }Y_{2}SiO_{5} (Author's Final Manuscript)
Abstract
We present and analyze a method of laser frequency stabilization via steady-state patterns of spectral holes in Eu3 :Y2SiO5. Three regions of spectral holes are created, spaced in frequency by the ground state hyperfine splittings of 151Eu3+ . The absorption pattern is shown not to degrade after days of laser frequency stabilization. An optical frequency comparison of a laser locked to such a steady-state spectral-hole pattern with an independent cavity-stabilized laser and a Yb optical lattice clock demonstrates a spectral-hole fractional frequency instability of 1.0 x 1015(-15) tau (-1/2) that averages to 8.5+ 4.8 over -1.8 x 10(-17) at tau = 73 s. Residual amplitude modulation at the frequency of the RF drive applied to the fiber-coupled electro-optic modulator is reduced to less than 1x10(-6) fractional amplitude modulation at > 1 s by an active servo. The contribution of residual amplitude modulation to the laser frequency instability is further reduced by digital division of the transmission and incident photo detector signals to less than 1 x 10(-16) at tau > 1 s.
Document Details
- Document Type
- Technical Report
- Publication Date
- Jun 23, 2015
- Accession Number
- AD1028308
Entities
People
- David R. Leibrandt
- Shon Cook
- Till Rosenband
Organizations
- National Institute of Standards and Technology