物理学报2012，Vol.61Issue(18)：188-193,6.
亚波长光栅调制的偏振稳定垂直腔面发射激光器研究
Polarization stable vertical-cavity surface-emitting laser with surface sub-wavelength gratings
摘要
Abstract
By introducing sub-wavelength grating into an oxide-confined 980-nm vertical-cavity surface-emitting laser (VCSEL), the VC- SEL with a stable polarization is realized. A sub-wavelength zero-order grating period is smaller than the wavelength in the semicon- ductor medium. This choice avoids a reduction in efficiency due to higher diffracting light. After the grating is etched, the threshold gains of E-fields parallel and perpendicular to the grating groves direction are different. The polarization therefore would be controlled. Good laser characteristics are obtained: the orthogonal polarization suppression ratio is over 12 dB and the threshold current increases just 7.14%.关键词
垂直腔面发射激光器/亚波长光栅/偏振稳定Key words
vertical-cavity surface-smiting laser/sub-wavelength gratings/polarization stability分类
信息技术与安全科学引用本文复制引用
李硕,关宝璐,史国柱,郭霞..亚波长光栅调制的偏振稳定垂直腔面发射激光器研究[J].物理学报,2012,61(18):188-193,6.基金项目
国家重点基础研究发展计划（批准号：2006CB604902）和国家自然科学基金（批准号：60908012）资助的课题. （）
