Photonic-chip-based tunable slow and fast light via stimulated Brillouin scattering
Photonic-chip-based tunable slow and fast light via stimulated Brillouin scattering
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DOI：
10.1364/ol.37.000969
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发表时间：
2012-03-01
期刊：
影响因子：
3.6
通讯作者：
Eggleton, Benjamin J.
中科院分区：
文献类型：
--
作者：
Pant, Ravi;Byrnes, Adam;Eggleton, Benjamin J.
我们报告的第一个（据我们所知）演示光子芯片的可调谐慢光和快光通过受激布里渊散射。在7 cm长的硫属化物（As 2S 3）脊形波导中观察到慢、快和负的群速度，群折射率变化范围从类似于-44到+130，这导致在类似于23 dB的相对低的增益下类似于23 ns的最大延迟。在芯片级器件中的大的可调谐延迟的演示开辟了诸如相控阵天线的频率感测和实时延迟的应用，其中非常期望类似于10 ns的集成和延迟。(C)2012美国光学学会
We report the first (to our knowledge) demonstration of photonic chip based tunable slow and fast light via stimulated Brillouin scattering. Slow, fast, and negative group velocities were observed in a 7 cm long chalcogenide (As2S3) rib waveguide with a group index change ranging from similar to-44 to +130, which results in a maximum delay of similar to 23 ns at a relatively low gain of similar to 23 dB. Demonstration of large tunable delays in a chip scale device opens up applications such as frequency sensing and true-time delay for a phased array antenna, where integration and delays similar to 10 ns are highly desirable. (C) 2012 Optical Society of America