Sinobad Milan, DellaTorre Alberto, Armand Remi, Luther-Davies Barry, Ma Pan, Madden Stephen, Mitchell Arnan, Moss David J, Hartmann Jean-Michel, Fedeli Jean-Marc, Monat Christelle, Grillet Christian
Opt Lett. 2020 Sep 15;45(18):5008-5011. doi: 10.1364/OL.402159.
We demonstrate coherent supercontinuum generation spanning over an octave from a silicon germanium-on-silicon waveguide using ∼200 pulses at a wavelength of 4 µm. The waveguide is engineered to provide low all-normal dispersion in the TM polarization. We validate the coherence of the generated supercontinuum via simulations, with a high degree of coherence across the entire spectrum. Such a generated supercontinuum could lend itself to pulse compression down to 22 fs.
我们展示了在硅基锗硅波导中利用波长为4微米的约200个脉冲产生跨越一个倍频程的相干超连续谱。该波导经过精心设计，可在TM偏振中提供低全正色散。我们通过模拟验证了所产生超连续谱的相干性，在整个光谱范围内具有高度的相干性。这样产生的超连续谱可用于将脉冲压缩至22飞秒。
