An Anti-Symmetric-Sample Grating Structure for Improving the Reconstruction-Equivalent-Chirp Technology

作者：Shi Yuechun^*; Zhou Yating; Li Simin; Guo Renjia; Lu Linlin; Feng Yijun; Chen Xiangfei

来源：IEEE Photonics Technology Letters, 2011, 23(18): 1337-1339.

DOI：10.1109/LPT.2011.2160623

• Planar waveguide
• sampled grating
• tilted grating
• wideband operation

This letter presents a novel sampled grating structure for improving reconstruction-equivalent-chirp (REC) technology. The proposed structure has uniform seed grating but with the anti-symmetric-sample structure. It has been found that in such a structure, the wavelengths of the +/- 1st channels can be both blue-shifted more than 40 nm, but the wavelength of the 0th channel is not changed. When the 1st channel is used as the working channel, the wavelength spacing between the 1st channel and the 0th channel is increased by more than 40 nm. Such a phenomenon will be sure to increase the performance and working bandwidth of the REC-based components such as the REC-based distributed-feedback (DFB) laser/laser array.

• 出版日期2011-9-15
• 单位南京大学; 南京理工大学