Continuous scanning of a dissipative Kerr-microresonator soliton comb for broadband, high resolution spectroscopy

Abstract

Dissipative Kerr-microresonator soliton combs (hereafter called soliton combs) are promising to realize chip scale integration of full soliton comb systems providing high precision, broad spectral coverage and a coherent link to the micro/mm/THz domain with diverse applications coming on line all the time. However, the large soliton comb spacing hampers some applications. For example, for spectroscopic applications, there are simply not enough comb lines available to sufficiently cover almost any relevant absorption features. Here, we overcome this limitation by scanning the comb mode spacing by employing PDH locking and a microheater on the microresonator, showing continuous scanning of the soliton comb modes across nearly the full FSR of the microresonator without losing soliton operation, while spectral features with a bandwidth of as small of 5 MHz are resolved. Thus, comb mode scanning allows to cover the whole comb mode spectrum of tens of THz bandwidth with only one chip-scale comb.

References in corpus (9)

• Temporal solitons in optical microresonators
• Photonic chip based optical frequency comb using soliton induced Cherenkov radiation
• Fully integrated ultra-low power Kerr comb generation
• Thermally Controlled Comb Generation and Soliton Modelocking in Microresonators
• Thermal and Nonlinear Dissipative-Soliton Dynamics in Kerr Microresonator Frequency Combs
• Narrow linewidth lasing and soliton Kerr-microcombs with ordinary laser diodes
• Ultralow-power chip-based soliton microcombs for photonic integration
• Scan-less confocal phase microscopy based on dual comb spectroscopy of two-dimensional-image-encoding optical frequency comb
• Microresonator-based high-resolution gas spectroscopy

Cited by in corpus (9)

• Versatile tuning of Kerr soliton microcombs in crystalline microresonators
• A mid-infrared dual-comb spectrometer in step-sweep mode for high-resolution molecular spectroscopy
• Thermal control of Kerr microresonator soliton comb via an optical sideband
• Broadband Ultrahigh-Resolution chip-scale Scanning Soliton Dual-Comb Spectroscopy
• Effects of a quiet point on a Kerr microresonator frequency comb
• Frequency-scanned microresonator soliton comb with the tracking of the frequency of all comb modes
• Broadband Cavity-Enhanced Kerr Comb Spectroscopy on Chip
• Stepped-Frequency THz-wave Signal Generation From a Kerr Microresonator Soliton Comb
• Generation of a microresonator soliton comb via current modulation of a DFB laser