论文类型：期刊论文
论文编号：305170
第一作者：蔡斌臣
通讯作者：司马朝坦
合写作者：刘柏兰,高远,余宇,JAMES C. GATES,MICHALIS N. ZERVAS,PETER G.R. SMITH,刘德明
发表刊物：Applied Optics
收录刊物：SCI、EI
学科门类：工学
一级学科：光学工程
文献类型：J
卷号：56
期号：28
页面范围：7978-7984
ISSN号：1559-128X
关键字：Integrated optics devices, Wavelength filtering devices, Waveguides, planar, Gratings.
DOI码：10.1364/AO.56.007978
发表时间：2017-09-29
影响因子：1.961
摘要：In this paper, we present integrated reconfigurable photonic filters using fractional Hilbert transformers (FrHTs) and optical phase tuning structure within the silica-on-silicon platform. The proposed structure, including grating-based FrHTs, an X-coupler, and a pair of thermal tuning filaments, is fabricated through the direct UV grating writing technique. The thermal tuning effect is realized by the controllable microheaters located on the two arms of the X-coupler. We investigate the 200 GHz maximum bandwidth photonic FrHTs based on apodized planar Bragg gratings, and analyze the reflection spectrum responses. Through device integration and thermal modulation, the device could operate as photonic notch filters with 5 GHz linewidth and controllable single sideband suppression filters with measured 12 dB suppression ratio. A 50 GHz instantaneous frequency measuring system using this device is also schematically proposed and analyzed with potential 3 dB measurement improvement. The device could be configured with these multiple functions according to need. The reconfigurable structure has great potential in ultrafast all-optical signal processing fields.
发布期刊链接：https://www.osapublishing.org/ao/fulltext.cfm?uri=ao-56-28-7978&id=373805