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Proceedings Paper

Two-cycle pulse generation from mode-locked Kerr frequency combs based on an integrated dispersion-flattened micro-resonator
Author(s): Lin Zhang; Anuradha M. Agarwal; Lionel C. Kimerling; Jurgen Michel
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Paper Abstract

Kerr frequency comb generation from a nonlinear high-Q resonator becomes an interdisciplinary research topic emerging from nonlinear optics, integrated photonics, and ultrafast optics. We show that ultrashort cavity solitons can be generated from a mode-locked Kerr frequency comb in a dispersion-engineered nonlinear microresonator. The spectral flatness of the comb is greatly improved by making the cavity soliton as short as two optical cycles, with a comb line power variation below 20 dB over an octave-spanning bandwidth from near infrared to mid infrared, while excellent spectral coherence is achieved by soliton-based mode locking. It is shown by simulation that the two-cycle solitons are robust to the wideband soliton perturbation effects such as all-order dispersion, frequency-dependent Q-factor, dispersive wave generation, Kerr self-steepening, and stimulated Raman scattering. The pump power used to generate an octave-spanning combs can be significantly reduced when a dispersion profile with four zero-dispersion frequencies, which paves the way to achieve a fully integrated frequency comb generator on a chip.

Paper Details

Date Published: 4 March 2014
PDF: 9 pages
Proc. SPIE 8960, Laser Resonators, Microresonators, and Beam Control XVI, 896004 (4 March 2014); doi: 10.1117/12.2037434
Show Author Affiliations
Lin Zhang, Massachusetts Institute of Technology (United States)
Anuradha M. Agarwal, Massachusetts Institute of Technology (United States)
Lionel C. Kimerling, Massachusetts Institute of Technology (United States)
Jurgen Michel, Massachusetts Institute of Technology (United States)

Published in SPIE Proceedings Vol. 8960:
Laser Resonators, Microresonators, and Beam Control XVI
Alexis V. Kudryashov; Alan H. Paxton; Vladimir S. Ilchenko; Lutz Aschke; Kunihiko Washio, Editor(s)

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