Engineering and Technology

Agile THz-range spectral multiplication of frequency combs using a multi-wavelength laser

S. Abdollahi, M. Ladouce, et al.

This groundbreaking research by Shahab Abdollahi, Mathieu Ladouce, Pablo Marin-Palomo, and Martin Virte introduces a transformative approach to enhance controllability and bandwidth in on-chip frequency comb sources. Utilizing agile spectral multiplication, they achieve unprecedented switching capabilities across a vast frequency range, paving the way for innovative and efficient THz comb sources.

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Abstract

This paper presents a novel approach to overcome the trade-off between controllability and bandwidth in on-chip frequency comb sources. By using agile spectral multiplication of narrowband combs, exploiting the nonlinear dynamics of a multi-wavelength laser under modulated optical injection, the authors achieve spectral multiplication at frequency offsets from 26 GHz to 1.3 THz with nanosecond switching of the frequency offset. This method, compatible with generic platforms, paves the way for low-cost, compact, and power-efficient THz comb sources.

Publisher

Nature Communications

Published On

Feb 12, 2024

Authors

Shahab Abdollahi, Mathieu Ladouce, Pablo Marin-Palomo, Martin Virte

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