Integrated microwave acousto-optic frequency shifter on thin-film lithium niobate
Integrated microwave acousto-optic frequency shifter on thin-film lithium niobate
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DOI：
10.1364/oe.397138
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发表时间：
2020-08-03
期刊：
影响因子：
3.8
通讯作者：
Loncar, Marko
中科院分区：
文献类型：
--
作者：
Shao, Linbo;Sinclair, Neil;Loncar, Marko
提供光束偏转和光频移的电驱动声光器件具有从脉冲合成到外差检测的广泛应用。商业上可获得的声光调制器基于块体材料并且消耗瓦特的射频功率。在这里，我们展示了一个集成的3 GHz声光移频器的薄膜锂钛酸盐，具有超过30 dB的载波抑制。此外，我们展示了千兆赫兹间隔的光学频率梳具有超过200线在0.6太赫兹的光学带宽通过再循环的光在一个积极的频移回路。我们的集成声光平台引领了片上光路由、隔离和微波信号处理的发展。(C)根据OSA开放获取出版协议的条款，2020年美国光学学会
Electrically driven acousto-optic devices that provide beam deflection and optical frequency shifting have broad applications from pulse synthesis to heterodyne detection. Commercially available acousto-optic modulators are based on bulk materials and consume Watts of radio frequency power. Here, we demonstrate an integrated 3-GHz acousto-optic frequency shifter on thin-film lithium niobate, featuring a carrier suppression over 30 dB. Further, we demonstrate a gigahertz-spaced optical frequency comb featuring more than 200 lines over a 0.6-THz optical bandwidth by recirculating the light in an active frequency shifting loop. Our integrated acousto-optic platform leads to the development of on-chip optical routing, isolation, and microwave signal processing. (C) 2020 Optical Society of America under the terms of the OSA Open Access Publishing Agreement