Stanton Eric J, Heck Martijn J R, Bovington Jock, Spott Alexander, Bowers John E
Opt Express. 2015 May 4;23(9):11272-83. doi: 10.1364/OE.23.011272.
We present the design of a novel platform that is able to combine optical frequency bands spanning 4.2 octaves from ultraviolet to mid-wave infrared into a single, low M2 output waveguide. We present the design and realization of a key component in this platform that combines the wavelength bands of 350 nm - 1500 nm and 1500 nm - 6500 nm with demonstrated efficiency greater than 90% in near-infrared and mid-wave infrared. The multi-octave spectral beam combiner concept is realized using an integrated platform with silicon nitride waveguides and silicon waveguides. Simulated bandwidth is shown to be over four octaves, and measured bandwidth is shown over two octaves, limited by the availability of sources.
我们展示了一种新型平台的设计，该平台能够将从紫外到中波红外跨越4.2个倍频程的光学频段组合到一个低M2输出的单一波导中。我们展示了该平台中一个关键组件的设计与实现，该组件将350纳米至1500纳米以及1500纳米至6500纳米的波段进行组合，在近红外和中波红外波段展现出大于90%的效率。多倍频程光谱光束组合器的概念是通过一个集成了氮化硅波导和硅波导的平台实现的。模拟带宽显示超过四个倍频程，实测带宽显示超过两个倍频程，这受到光源可用性的限制。
