Temporal solitons in a coherently driven active resonator
arXiv:2007.15630
Abstract
Optical frequency combs are lightwaves composed of a large number of equidistant spectral lines. They are important for metrology, spectroscopy, communications and fundamental science. Frequency combs are most often generated by exciting dissipative solitons in lasers or in passive resonators, both of which suffer from significant limitations. Here, we show that the advantages of each platform can be combined. We introduce a novel kind of soliton, called active cavity soliton, hosted in coherently driven lasers pumped below the lasing threshold. We use an active fibre resonator and measure high peak power solitons on a low power background, in excellent agreement with simulations of a generalized Lugiato-Lefever equation. Moreover, we find that amplified spontaneous emission has negligible impact on the soliton's stability. Our results open up novel avenues for frequency comb formation by showing that coherent driving and incoherent pumping can be efficiently combined to generate a high-power ultra-stable pulse train.
References in corpus (13)
- Temporal solitons in optical microresonators
- Microresonator solitons for massively parallel coherent optical communications
- Photonic chip based optical frequency comb using soliton induced Cherenkov radiation
- An atomic clock with instability
- Nanophotonic soliton-based microwave synthesizers
- Universal scaling laws of Kerr frequency combs
- Laser Cavity-Soliton Micro-Combs
- Ultra-weak long-range interactions of solitons observed over astronomical distances
- Demonstration of an erbium doped microdisk laser on a silicon chip
- Semiconductor ring laser frequency combs induced by phase turbulence
- Topological solitons as addressable phase bits in a driven laser
- Stimulated Raman Scattering Imposes Fundamental Limits to the Duration and Bandwidth of Temporal Cavity Solitons
- Micro-resonator soliton generated directly with a diode laser