TY - JOUR
T1 - Four-wave mixing parametric oscillation and frequency comb generation at visible wavelengths in a silica microbubble resonator
AU - Yang, Yong
AU - Jiang, Xuefeng
AU - Kasumie, Sho
AU - Zhao, Guangming
AU - Xu, Linhua
AU - Ward, Jonathan M.
AU - Yang, Lan
AU - Nic Chormaic, Síle
N1 - Publisher Copyright:
© 2016 Optical Society of America.
PY - 2016/11/15
Y1 - 2016/11/15
N2 - Frequency comb generation in microresonators at visible wavelengths has found applications in a variety of areas such as metrology, sensing, and imaging. To achieve Kerr combs based on four-wave mixing in a microresonator, dispersion must be in the anomalous regime. In this Letter, we demonstrate dispersion engineering in a microbubble resonator (MBR) fabricated by a two-CO2 laser beam technique. By decreasing the wall thickness of the MBR to 1.4 μm, the zero dispersion wavelength shifts to values shorter than 764 nm, making phase matching possible around 765 nm. With the optical Q-factor of the MBR modes being greater than 107 , four-wave mixing is observed at 765 nm for a pump power of 3 mW. By increasing the pump power, parametric oscillation is achieved, and a frequency comb with 14 comb lines is generated at visible wavelengths.
AB - Frequency comb generation in microresonators at visible wavelengths has found applications in a variety of areas such as metrology, sensing, and imaging. To achieve Kerr combs based on four-wave mixing in a microresonator, dispersion must be in the anomalous regime. In this Letter, we demonstrate dispersion engineering in a microbubble resonator (MBR) fabricated by a two-CO2 laser beam technique. By decreasing the wall thickness of the MBR to 1.4 μm, the zero dispersion wavelength shifts to values shorter than 764 nm, making phase matching possible around 765 nm. With the optical Q-factor of the MBR modes being greater than 107 , four-wave mixing is observed at 765 nm for a pump power of 3 mW. By increasing the pump power, parametric oscillation is achieved, and a frequency comb with 14 comb lines is generated at visible wavelengths.
UR - http://www.scopus.com/inward/record.url?scp=84995611031&partnerID=8YFLogxK
U2 - 10.1364/OL.41.005266
DO - 10.1364/OL.41.005266
M3 - Article
AN - SCOPUS:84995611031
SN - 0146-9592
VL - 41
SP - 5266
EP - 5269
JO - Optics Letters
JF - Optics Letters
IS - 22
ER -