典型文献
Blue band nonlinear optics and photodarkening in silica microdevices
文献摘要：
There are extensive studies to date on optical nonlinearities in microcavities at the near and mid-IR wavelengths. Pushing this research into the visible region is equally valuable. Here, we demonstrate a directly pumped, blue band Kerr frequency comb and stimulated Raman scattering (SRS) at 462 nm in a silica nanofiber-coupled whispering gallery microcavity system. Notably, due to the high optical intensities achieved, photodarkening is unavoidable and can quickly degrade the optical quality of both the coupling optical nanofiber and the microcavity, even at very low pump powers. Nonetheless, stable hyperparametric oscillation and SRS are demonstrated in the presence of photodarkening by taking advantage of in-situ thermal bleaching. This work highlights the challenges of silica-based, short wavelength nonlinear optics in high-quality, small mode volume devices and gives an effective method to overcome this apparent limitation, thus providing a baseline for optics research in the blue region for any optical devices fabricated from silica.
文献关键词：
中图分类号：
作者姓名：
Ke Tian;Jibo Yu;Fuchuan Lei;Jonathan Ward;Angzhen Li;Pengfei Wang;Síle Nic Chormaic
作者机构：
Okinawa Institute of Science and Technology Graduate University, Onna, Okinawa 904-0495, Japan;Key Laboratory of In-Fiber Integrated Optics of Ministry of Education, College of Physics and Optoelectronic Engineering, Harbin Engineering University, Harbin 150001, China;Department of Microtechnology and Nanoscience, Chalmers University of Technology, SE-41296 Gothenburg, Sweden;Physics Department, University College Cork, Cork, Ireland;Key Laboratory of Optoelectronic Devices and Systems of Ministry of Education and Guangdong Province, College of Optoelectronic Engineering, Shenzhen University, Shenzhen 518060, China
文献出处：
引用格式：
[1]Ke Tian;Jibo Yu;Fuchuan Lei;Jonathan Ward;Angzhen Li;Pengfei Wang;Síle Nic Chormaic-.Blue band nonlinear optics and photodarkening in silica microdevices)[J].光子学研究（英文）,2022(09):2073
A类：
photodarkening,hyperparametric
B类：
Blue,band,optics,silica,microdevices,There,extensive,studies,date,optical,nonlinearities,microcavities,mid,wavelengths,Pushing,this,research,into,visible,region,equally,valuable,Here,directly,pumped,blue,Kerr,frequency,comb,stimulated,Raman,scattering,SRS,nanofiber,coupled,whispering,gallery,microcavity,system,Notably,due,intensities,achieved,unavoidable,can,quickly,degrade,quality,both,coupling,even,very,low,powers,Nonetheless,stable,oscillation,demonstrated,presence,by,taking,advantage,situ,thermal,bleaching,This,work,highlights,challenges,short,small,mode,volume,gives,effective,method,overcome,apparent,limitation,thus,providing,baseline,any,fabricated,from
AB值：
0.59948
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