Optomechanical zipper cavity lasers: theoretical analysis of tuning range and stability

被引：22

作者：

Alegre, Thiago P. Mayer ^{[1
]}

Perahia, Raviv ^{[1
]}

Painter, Oskar ^{[1
]}

机构：

[1] CALTECH, Thomas J Watson Sr Lab Appl Phys, Pasadena, CA 91125 USA

来源：

OPTICS EXPRESS | 2010年 / 18卷 / 08期

关键词：

QUANTUM-DOT LASERS; TUNABLE LASERS; THRESHOLD;

D O I：

10.1364/OE.18.007872

中图分类号：

O43 [光学];

学科分类号：

070207 ; 0803 ;

摘要：

The design of highly wavelength tunable semiconductor laser structures is presented. The system is based on a one dimensional photonic crystal cavity consisting of two patterned, doubly-clamped nanobeams, otherwise known as a "zipper" cavity. Zipper cavities are highly dispersive with respect to the gap between nanobeams in which extremely strong radiation pressure forces exist. Schemes for controlling the zipper cavity wavelength both optically and electrically are presented. Tuning ranges as high as 75 nm are achieved for a nominal design wavelength of lambda = 1.3 mu m. Sensitivity of the mechanically compliant laser structure to thermal noise is considered, and it is found that dynamic back-action of radiation pressure in the form of an optical or electrical spring can be used to stabilize the laser frequency. Fabrication of zipper cavity laser structures in GaAs material with embedded self-assembled InAs quantum dots is presented, along with measurements of photoluminescence spectroscopy of the zipper cavity modes. (C) 2010 Optical Society of America

引用

页码：7872 / 7885

页数：14

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