Skip to main content
U.S. flag

An official website of the United States government

Official websites use .gov
A .gov website belongs to an official government organization in the United States.

Secure .gov websites use HTTPS
A lock ( ) or https:// means you’ve safely connected to the .gov website. Share sensitive information only on official, secure websites.

Laser-power consumption of soliton formation in a bidirectional Kerr resonator

Published

Author(s)

Jizhao Zang, Su-Peng Yu, Haixin Liu, Yan Jin, Travis Briles, David Carlson, Scott Papp

Abstract

Laser sources power extreme data transmission as well as computing acceleration, access to ultrahigh-speed signaling, and sensing for chemicals, distance, and pattern recognition. The ever-growing scale of these applications drives innovation in multi-wavelength lasers for massively parallel processing. We report a nanophotonic Kerr-resonator circuit that consumes the power of an input laser and generates a soliton frequency comb at approaching unit efficiency. By coupling forward and backward propagation, we create a bidirectional Kerr resonator that supports universal phase matching but also opens excess loss by double-sided emission. Therefore, we induce reflection of the resonator's forward, external-coupling port to favor backward propagation, resulting in efficient, one-sided soliton formation. Coherent backscattering with nanophotonics provides the control to put arbitrary phase-matching and efficient laser-power consumption on equal footing in Kerr resonators. In the overcoupled-resonator regime, we measure 65% conversion efficiency of a 40 mW input pump laser, and the nonlinear circuit consumes 97% of the pump, generating the maximum possible comb power. Our work opens up high-efficiency soliton formation in integrated photonics, exploring how energy flows in nonlinear circuits and enabling laser sources for advanced transmission, computing, quantum sensing, and artificial intelligence applications.
Citation
Science

Keywords

Microresonator, soliton microcomb, conversion efficiency, photonic crystal resonator

Citation

Zang, J. , Yu, S. , Liu, H. , Jin, Y. , Briles, T. , Carlson, D. and Papp, S. (2024), Laser-power consumption of soliton formation in a bidirectional Kerr resonator, Science, [online], https://tsapps.nist.gov/publication/get_pdf.cfm?pub_id=957113 (Accessed December 11, 2024)

Issues

If you have any questions about this publication or are having problems accessing it, please contact reflib@nist.gov.

Created January 30, 2024, Updated March 25, 2024