摘要
We report on the fabrication of the lO-mm-long lithium niobate ridge waveguide and its supercontinuum gen- eration at near-visible wavelengths （around 800hm）. The waveguides are fabricated by a combination of MeV copper ion implantation followed by wet etching in a proton exchanged lithium niobate planar waveguide. Using a mode-locked Ti：sapphire laser with a central wavelength of 800nm, the generated broadest supereontinuum through the ridge waveguides spans 302 nm （at -30 dB points）, from 693 to 995 nm. Temporal coherence proper- ties of the supercontinuum are experimentally studied by a Michelson interferometer and the coherence length of the broadest supercontinuum is measured to be 5.2 μm. Our results offer potential for a compact and integrated supercontinuum source for applications including bio-imaging, spectroscopy and optical communication.
We report on the fabrication of the lO-mm-long lithium niobate ridge waveguide and its supercontinuum gen- eration at near-visible wavelengths （around 800hm）. The waveguides are fabricated by a combination of MeV copper ion implantation followed by wet etching in a proton exchanged lithium niobate planar waveguide. Using a mode-locked Ti：sapphire laser with a central wavelength of 800nm, the generated broadest supereontinuum through the ridge waveguides spans 302 nm （at -30 dB points）, from 693 to 995 nm. Temporal coherence proper- ties of the supercontinuum are experimentally studied by a Michelson interferometer and the coherence length of the broadest supercontinuum is measured to be 5.2 μm. Our results offer potential for a compact and integrated supercontinuum source for applications including bio-imaging, spectroscopy and optical communication.
作者
项炳锡
王磊
马钰洁
余利
韩黄璞
阮双琛
Bing-Xi Xiang Lei Wang Yu-Jie Ma Li Yu Huang-Pu Han Shuang-Chen Ruan(Shenzhen Key Laboratory of Laser Engineering, College of Optoelectronic Engineering, Shenzhen University Shenzhen 518060 Key Laboratory of Optoelectronic Devices and Systems of Ministry of Education and Guangdong Province, College of Optoelectronic Engineering, Shenzhen University, Shenzhen 518060 School of Physics, Shandong University, Jinan 250100)
基金
Supported by the National Natural Science Foundation of China under Grant Nos 61575129 and 11375105
the Postdoctoral Science Foundation of China under Grant No 2016M602511
the Shenzhen Science and Technology Planning under Grant No JCYJ20160422142912923
the State Key Laboratory of Nuclear Physics and Technology,Peking University
