Thermally Controlled Comb Generation and Soliton Modelocking in Microresonators

TL;DR

This paper demonstrates thermally controlled soliton modelocking in microresonators, enabling simplified and repeatable frequency comb generation without changing the pump laser, which could advance chip-based spectroscopy.

Contribution

It introduces a novel thermally controlled method for soliton modelocking in microresonators, eliminating the need for pump wavelength adjustments.

Findings

Successful demonstration of thermally controlled soliton states

Systematic and repeatable control over single- and multi-soliton states

Potential for simplified chip-based frequency comb applications

Abstract

We report the first demonstration of thermally controlled soliton modelocked frequency comb generation in microresonators. By controlling the electric current through heaters integrated with silicon nitride microresonators, we demonstrate a systematic and repeatable pathway to single- and multi-soliton modelocked states without adjusting the pump laser wavelength. Such an approach could greatly simplify the generation of modelocked frequency combs and facilitate applications such as chip-based dual-comb spectroscopy.