- Athermal arrayed waveguide gratings in silicon-on-insulator by overlaying a polymer cladding on narrowed arrayed waveguides
- 点击次数：
- 论文类型： 期刊论文
- 发表时间： 2012-03-20
- 发表刊物： APPLIED OPTICS
- 收录刊物： SCIE、EI、Scopus
- 卷号： 51
- 期号： 9
- 页面范围： 1251-1256
- ISSN号： 1559-128X
- 摘要： Athermal arrayed waveguide gratings (AWGs) in silicon-on-insulator (SOI) are experimentally demonstrated for the first time to our knowledge. By using narrowed arrayed waveguides, and then overlaying a polymer layer, the wavelength temperature dependence of the AWGs is successfully reduced to -1.5 pm/degrees C, which is more than 1 order of magnitude less than that of normal SOI AWGs. The athermal behavior of the AWGs is obtained with little degradation of their performance. For the central channel, the cross talk is less than -15 dB and the insertion loss is around 2.6 dB. Good characteristics can be maintained with temperatures up to 75 degrees C. The total size of the device is 350 mu m x 250 mu m. (C) 2012 Optical Society of America
