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Photonic chip-based soliton frequency combs covering the biological imaging window.


ABSTRACT: Dissipative Kerr solitons (DKS) in optical microresonators provide a highly miniaturised, chip-integrated frequency comb source with unprecedentedly high repetition rates and spectral bandwidth. To date, such frequency comb sources have been successfully applied in the optical telecommunication band for dual-comb spectroscopy, coherent telecommunications, counting of optical frequencies and distance measurements. Yet, the range of applications could be significantly extended by operating in the near-infrared spectral domain, which is a prerequisite for biomedical and Raman imaging applications, and hosts commonly used optical atomic transitions. Here we show the operation of photonic-chip-based soliton Kerr combs driven with 1?micron laser light. By engineering the dispersion properties of a Si3N4 microring resonator, octave-spanning soliton Kerr combs extending to 776?nm are attained, thereby covering the optical biological imaging window. Moreover, we show that soliton states can be generated in normal group-velocity dispersion regions when exploiting mode hybridisation with other mode families.

SUBMITTER: Karpov M 

PROVIDER: S-EPMC5861103 | biostudies-literature | 2018 Mar

REPOSITORIES: biostudies-literature

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Photonic chip-based soliton frequency combs covering the biological imaging window.

Karpov Maxim M   Pfeiffer Martin H P MHP   Liu Junqiu J   Lukashchuk Anton A   Kippenberg Tobias J TJ  

Nature communications 20180320 1


Dissipative Kerr solitons (DKS) in optical microresonators provide a highly miniaturised, chip-integrated frequency comb source with unprecedentedly high repetition rates and spectral bandwidth. To date, such frequency comb sources have been successfully applied in the optical telecommunication band for dual-comb spectroscopy, coherent telecommunications, counting of optical frequencies and distance measurements. Yet, the range of applications could be significantly extended by operating in the  ...[more]

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