Details

Autor(en) / Beteiligte

• Honda, Yoshihiro
• Yoshiki, Wataru
• Tetsumoto, Tomohiro
• Fujii, Shun
• Furusawa, Kentaro
• Sekine, Norihiko
• Tanabe, Takasumi

Titel

Brillouin lasing in coupled silica toroid microcavities

Ist Teil von

• Applied physics letters, 2018-05, Vol.112 (20)

Ort / Verlag

Melville: American Institute of Physics

Erscheinungsjahr

2018

Quelle

AIP Journals (American Institute of Physics)

Beschreibungen/Notizen

• We demonstrate stimulated Brillouin scattering lasing in a strongly coupled microcavity system. By coupling two silica toroid microcavities, we achieve large mode splitting of 11 GHz, whose frequency separation matches the Brillouin frequency shift of silica. The stimulated Brillouin scattering light is resonantly amplified by pumping at the higher frequency side of the supermode splitting resonance. Since the mode splitting is adjusted by changing the gap distance between the two cavities, our system does not require precise control of a mm-sized cavity diameter to match the free-spectral spacing with the Brillouin frequency shift. It also allows us to use a small cavity, and hence, our system has the potential to achieve the lasing threshold at a very low power.