We present a laser frequency comb based upon a 250 MHz mode-locked erbium fiber-laser that spans more than 300 terahertz of bandwidth, from 660 nm to 2000 nm. Broad bandwidth is achieved by making use of Er:fiber and Yb:fiber amplifiers and supercontinuum generation. Comb coherence is verified with cascaded f-2f interferometry and comparison to frequency stabilized lasers.
Citation: Optics Letters
Pub Type: Journals
laser frequency comb, nonlinear optics