Title :
Study of the Multiwavelength DFB Semiconductor Laser Array Based on the Reconstruction-Equivalent-Chirp Technique
Author :
Yuechun Shi ; Simin Li ; Lianyan Li ; Renjia Guo ; Tingting Zhang ; Liu Rui ; Weichun Li ; Linlin Lu ; Tang Song ; Yating Zhou ; Jingsi Li ; Xiangfei Chen
Author_Institution :
Nat. Lab. of Solid State Microstructures, Nanjing Univ., Nanjing, China
Abstract :
A detailed theoretical analysis of the lasing wavelength precision of the DFB laser array based on a reconstruction-equivalent-chirp (REC) technique is presented. Experimental results of the eight-wavelength DFB laser array with equivalent π phase shift (π-EPS) and four-wavelength DFB laser array with equivalent three shifts are also given. High lasing wavelength precision was obtained. This paper demonstrates that the REC technique is a promising way for fabricating the multiwavelength DFB laser array with low cost and high yield.
Keywords :
chirp modulation; distributed feedback lasers; laser theory; optical fabrication; semiconductor laser arrays; π-EPS; REC technique; eight-wavelength DFB laser array; equivalent π phase shift; equivalent three shifts; four-wavelength DFB laser array; lasing wavelength precision; multiwavelength DFB semiconductor laser array; reconstruction-equivalent-chirp technique; Arrays; Fabrication; Gratings; Laser theory; Measurement by laser beam; Semiconductor laser arrays; DFB semiconductor laser; laser array; phase shift; sampled grating;
Journal_Title :
Lightwave Technology, Journal of
DOI :
10.1109/JLT.2013.2280715
