Guided-mode grating resonant filters for VCSEL applications
Guided-mode grating resonant filters for VCSEL applications
复制标题
适用于 VCSEL 应用的导模光栅谐振滤波器
DOI：
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发表时间：
1998
期刊：
影响因子：
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通讯作者：
C. Ford
中科院分区：
文献类型：
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作者：
J. Cox;R. Morgan;Robert Wilke;C. Ford
简要总结了垂直腔面发射激光器技术和导模栅谐振滤波器。然后，我们讨论了两种技术集成的好处和问题，重点是对波长、偏振和激光腔模的控制。我们提出了一种适用于980 nm InGaAsVCSEL的GMGRF设计，并表明反射率的显著损失(-4%)是由于通过反射镜注入电流所需的最小镜面电导率的轻微损失造成的。为熔融石英衬底设计和制作的850 mm的实验数据表明，GMGRF对其他形式的损耗也非常敏感，例如由栅线粗糙度引起的散射。我们建议在简化的分布式Bragg反射器堆栈上采用GMGRF的混合方法，以避免GMGRF对损耗的高敏感性。
A brief summary of both VCSEL technology and guided-mode grating resonant filters (GMGRFs) is presented. We then discuss benefits and issues of integrating the two technologies, emphasizing control of wavelength, polarization, and laser cavity modes. We present a GMGRF design suitable for a 980 nm InGaAs VCSEL and show that a significant loss (-4%) in reflectivity results from the slight loss associated with the minimum mirror conductivity required to inject current through the mirror. Experimental data are presented at 850 mm for gratings designed for and fabricated on fused silica substrates and illustrate that GMGRFs are also very sensitive to other forms of loss such as scatter caused by roughness in the grating lines. We suggest a hybrid approach of a GMGRF on a reduced distributed Bragg reflector stack as a means to circumvent the high sensitivity to loss in the GMGRF.