Broadband-tunable LP${}_{01}$ mode frequency shifting by Raman coherence waves in H${}_2$-filled hollow-core PCF

S. T. Bauerschmidt, David Novoa, Amir Abdolvand +1

When a laser pump beam of sufficient intensity is incident on a Raman-active medium such as hydrogen gas, a strong Stokes signal, red-shifted by the Raman transition frequency Ω$_R…