论文类型：期刊论文
论文编号：334516
第一作者：张紫荆
通讯作者：司马朝坦
合写作者：刘柏兰,蔡斌臣,高远,张敏明,沈力,余宇,黄梦,廉正刚,MATTHEW T. POSNER,JAMES C. GATES,PETER G.R. SMITH,刘德明
发表刊物：Optics Express
收录刊物：EI、SCI
学科门类：工学
一级学科：光学工程
文献类型：J
卷号：26
期号：16
页面范围：20450-20458
ISSN号：1094-4087
关键字：Analog optical signal processing, Waveguides, planar, Continuous optical signal processing, Gratings.
DOI码：10.1364/OE.26.020450
发表时间：2018-07-16
影响因子：3.669
摘要：We propose and experimentally demonstrate wideband and continuously tunable fractional-order photonic Hilbert transformers (FrHT). These are realized by a single apodized planar Bragg grating within a high-birefringence planar substrate. The fractional order of the FrHT is continuously tuned and precisely controlled by changing the polarization state of the input light. The experimental characterization demonstrates an operating bandwidth up to 120 GHz with amplitude ripples below 3 dB. The optical phase shift response is directly measured to verify the proposed tuning property, demonstrating transform orders of around 1, 0.7, and 0.5. This approach is simple, stable, and compact compared to other existing methods and has great potential in the fields of ultrafast all-optical signal processing.
发布期刊链接：https://www.osapublishing.org/oe/fulltext.cfm?uri=oe-26-16-20450&id=395729