Optical-Frequency Measurements with a Kerr Microcomb and Photonic-Chip Supercontinuum
Erin S. Lamb, David R. Carlson, Daniel D. Hickstein, Jordan R. Stone, Scott A. Diddams, Scott B. Papp
Dissipative solitons formed in Kerr microresonators offer the promise of chip-scale frequency combs that can extend precision metrology outside of a laboratory environment. We explore the creation of an octave-spanning, 15 GHz repetition rate microcomb suitable for both f-2f self- referencing and optical-frequency comparisons across the near infrared. We use a simple and reliable approach to deterministically generate, and subsequently frequency stabilize, soliton pulse trains in a silica disk resonator. Efficient silicon-nitride waveguides provide a supercontinuum spanning 700-2100 nm, enabling both offset-frequency stabilization and optical- frequency measurements with >100 nW per mode. We use the stabilized comb to perform the first microcomb-mediated comparison of two ultrastable optical reference cavities to demonstrate its utility.
, Carlson, D.
, Hickstein, D.
, Stone, J.
, Diddams, S.
and Papp, S.
Optical-Frequency Measurements with a Kerr Microcomb and Photonic-Chip Supercontinuum, Optica
(Accessed June 2, 2023)