Tunable Interferometers Driven by Coherent Surface Acoustic Phonons

被引：0

作者：

Crespo-Poveda, Antonio ^{[1
]}

Hernandez-Minguez, Alberto ^{[2
]}

Biennann, Klaus ^{[2
]}

Tahraoui, Abbes ^{[2
]}

Gargallo, Bernardo ^{[3
]}

Munoz, Pascual ^{[3
]}

Santos, Paulo V. ^{[2
]}

Cantarero, Andres ^{[1
]}

de Lima, Mauricio M., Jr. ^{[1
]}

机构：

[1] Univ Valencia, Inst Mat Sci, POB 2208, ES-46071 Valencia, Spain

[2] Paul Drude Inst Solid State Elect, Hausvogteipl 5-7, DE-10117 Berlin, Germany

[3] Univ Politecn Valencia, iTEAM Res Inst, Camino Vera S-N, ES-46022 Valencia, Germany

来源：

MRS ADVANCES | 2016年 / 1卷 / 22期

关键词：

D O I：

10.1557/adv.2016.234

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

We demonstrate a compact tunable photonic modulator driven by surface acoustic waves (SAWs) in the low GHz frequency range. The device follows a well-known Mach-Zehnder interferometer (MZI) structure with three output channels, built upon multi-mode interference (MMI) couplers. The light continuously switches paths between the central and the side channels, avoiding losses and granting a 180 degrees-dephasing synchronization between them. The modulator was monolithically fabricated on (Al, Ga) As, and can be used as a building block for more complex photonic functionalities. It can also be implemented in other material platforms such as Silicon or (In, Ga) P. Light modulated at multiples of the fundamental acoustic frequency can be accomplished by adjusting the applied acoustic power. An excellent agreement between theory and experiment is achieved.

引用

页码：1651 / 1656

页数：6

共 6 条

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