Analysis of a wavelength selectable cascaded DFB laser based on the transfer matrix method

• Published in: Journal of semiconductors Vol. 31; no. 6; pp. 50 - 53
• Main Author: 谢红云 陈亮 沈珮 孙博韬 王任卿 肖盈 尤云霞 张万荣
• Format: Journal Article
• Language: English
• Published: IOP Publishing 01.06.2010
• Subjects: DFB激光器; 可选择; 基础; 多量子阱结构; 有效反射面; 波长选择; 级联; 转移矩阵法
• ISSN: 1674-4926
• DOI: 10.1088/1674-4926/31/6/064006

A novel cascaded DFB laser,which consists of two serial gratings to provide selectable wavelengths,is presented and analyzed by the transfer matrix method.In this method,efficient facet reflectivity is derived from the transfer matrix built for each serial section and is then used to simulate the performance of the novel cascaded DFB laser through self-consistently solving the gain equation,the coupled wave equation and the current continuity equations.The simulations prove the feasibility of this kind of wavelength selectable laser and a corresponding designed device with two selectable wavelengths of 1.51μm and 1.53μm is realized by experiments on InP-based multiple quantum well structure.