Towards visible soliton microcomb generation

Abstract

Frequency combs have applications that extend from the ultra-violet into the mid-infrared bands. Microcombs, a miniature and often semiconductor-chip-based device, can potentially access most of these applications, but are currently more limited in spectral reach. Here, we demonstrate mode-locked silica microcombs with emission near the edge of the visible spectrum. By using both geometrical and mode-hybridization dispersion control, devices are engineered for soliton generation while also maintaining optical $Q$ factors as high as 80 million. Electronics-bandwidth-compatible (20 GHz) soliton mode locking is achieved with low pumping powers (parametric oscillation threshold powers as low as 5.4 mW). These are the shortest wavelength soliton microcombs demonstrated to date and could be used in miniature optical clocks. The results should also extend to visible and potentially ultra-violet bands.

Seung Hoon Lee, Dong Yoon Oh, Qi-Fan Yang, Boqiang Shen and Heming Wang contributed equally to this work

References in corpus (26)

• Temporal solitons in optical microresonators
• All-optical signal processing platforms for CMOS compatible integrated nonlinear optics
• Microresonator Soliton Dual-Comb Spectroscopy
• Photonic chip based optical frequency comb using soliton induced Cherenkov radiation
• Mode interaction aided excitation of dark solitons in microresonators constructed of normal dispersion waveguides
• On-chip dual comb source for spectroscopy
• Thermally Controlled Comb Generation and Soliton Modelocking in Microresonators
• Octave Spanning Frequency Comb on a Chip
• Stably accessing octave-spanning microresonator frequency combs in the soliton regime
• Octave-spanning dissipative Kerr soliton frequency combs in $S{i}_3{N}_4$ microresonators
• Mode spectrum and temporal soliton formation in optical microresonators
• Universal scaling laws of Kerr frequency combs
• Raman induced soliton self-frequency shift in microresonator Kerr frequency combs
• Aluminum nitride as a new material for chip-scale optomechanics and nonlinear optics
• Stokes Soliton in Optical Microcavities
• Spectral and temporal characterization of a fused-quartz microresonator optical frequency comb
• Soliton dual comb in crystalline microresonators
• Tunable frequency combs based on dual microring resonators
• Second-harmonic assisted four-wave mixing in chip-based microresonator frequency comb generation
• Solitons and frequency combs in silica microring resonators: Interplay of the Raman and higher-order dispersion effects
• Dispersion engineered high-Q silicon Nitride Ring-Resonators via Atomic Layer Deposition
• Broadband dispersion engineered microresonator on-a-chip
• Strong polarization mode coupling in microresonators
• Generation of Kerr combs centered at 4.5μm in crystalline microresonators pumped by quantum cascade lasers
• Four-wave mixing parametric oscillation and frequency comb generation at visible wavelengths in a silica microbubble resonator
• Intracavity characterization of micro-comb generation in the single-soliton regime

Cited by in corpus (20)

• Ultra-low loss integrated visible photonics using thin-film lithium niobate
• Applications of integrated optical microcombs
• μW-Level Microresonator Solitons with Extended Stability Range Using an Auxiliary Laser
• Vernier spectrometer using counter-propagating soliton microcombs
• Spatial multiplexing of soliton microcombs
• Photonic chip-based soliton frequency combs covering the biological imaging window
• Visible nonlinear photonics via high-order-mode dispersion engineering
• Microresonator soliton dual-comb imaging
• Frequency comb up- and down-conversion in a synchronously-driven ${\chi }^{(2)}$ optical microresonator
• Fourier synthesis dispersion engineering of photonic crystal microrings for broadband frequency combs
• Gain-through-filtering enables tuneable frequency comb generation in passive optical resonators
• High-bandwidth CMOS-voltage-level electro-optic modulation of 780 nm light in thin-film lithium niobate
• Efficient and tunable blue light generation using lithium niobate nonlinear photonics
• Optical Frequency Combs in Aqueous and Air Environments at Visible to Near-IR Wavelengths
• Single Pulse Manipulations in Synthetic Time-frequency Space
• Dispersion tailoring in wedge microcavities for Kerr comb generation
• Systematic dispersion engineering of crystalline microresonators for broadband and coherent frequency comb generation
• Third-harmonic generation in silica wedge resonators
• A Novel Buckle-Free Large Rib Microdisk with Sub-Micron Thickness
• Blue-shifted dispersive waves and broadband UV emission using dual-core SiN waveguides