光学芯片中的腔增强受激布里渊散射用于多阶斯托克斯产生。

Cavity enhanced stimulated Brillouin scattering in an optical chip for multiorder Stokes generation.

机构信息

Centre for Ultrahigh bandwidth Devices for Optical Systems, Institute of Photonics and Optical Science, School of Physics, University of Sydney, Sydney, NSW, Australia.

出版信息

Opt Lett. 2011 Sep 15;36(18):3687-9. doi: 10.1364/OL.36.003687.

DOI:10.1364/OL.36.003687

PMID:21931433

Abstract

We report the first demonstration of on-chip cascaded stimulated Brillouin scattering (SBS). Cascaded SBS is characterized in a 4 cm long chalcogenide (As₂S₃) rib waveguide where the end facet reflections provide a monolithic Fabry-Perot (FP) resonator. The presence of the FP cavity reduces the Brillouin gain threshold, which enables observation of cascaded SBS at reduced pump powers. We observe up to three orders of Stokes waves in the backscattered signal at a coupled peak power of 1.34 W. Anti-Stokes waves due to four-wave mixing between the pump and the Stokes wave were observed in the forward spectrum.

摘要

我们首次展示了片上级联受激布里渊散射 (SBS)。在 4 厘米长的硫属化物 (As₂S₃) 脊形波导中对级联 SBS 进行了特性研究，其中端面反射提供了整体 Fabry-Perot (FP) 谐振器。FP 腔的存在降低了布里渊增益阈值，从而能够在降低的泵浦功率下观察到级联 SBS。在 1.34 W 的耦合峰值功率下，在反向散射信号中观察到多达三个斯托克斯波级。在正向光谱中观察到由于泵浦和斯托克斯波之间的四波混频而产生的反斯托克斯波。