Ya-nan Ma,Bin Luo,Wei Pan,Lian-shan Yan,Xi-hua Zou,An-lin Yi,Jia Ye,Kun-hua Wen.Improvement of slow light performance for vertical-cavity surface-emitting laser using coupled cavity structure[J].Optoelectronics Letters,2012,8(6):405-408 Improvement of slow light performance for vertical-cavity surface-emitting laser using coupled cavity structure Author Name Affiliation E-mail Ya-nan Ma  School of Information Science and Technology, Southwest Jiaotong University, Chengdu, 610031, China  mayananaa@sohu.com  Bin Luo  School of Information Science and Technology, Southwest Jiaotong University, Chengdu, 610031, China    Wei Pan  School of Information Science and Technology, Southwest Jiaotong University, Chengdu, 610031, China    Lian-shan Yan  School of Information Science and Technology, Southwest Jiaotong University, Chengdu, 610031, China    Xi-hua Zou  School of Information Science and Technology, Southwest Jiaotong University, Chengdu, 610031, China    An-lin Yi  School of Information Science and Technology, Southwest Jiaotong University, Chengdu, 610031, China    Jia Ye  School of Information Science and Technology, Southwest Jiaotong University, Chengdu, 610031, China    Kun-hua Wen  School of Information Science and Technology, Southwest Jiaotong University, Chengdu, 610031, China    Abstract:       We propose a vertical cavity semiconductor emitting laser (VCSEL) using a coupled-cavity (CC) design to broaden the bandwidths of gain and delay spectra. The structure is formed by constructing a passive cavity coupled with the active cavity. By rendering the strength of the two resonant cavities, the increased gain bandwidth by 340% and the increased delay bandwidth by 800% are achieved as compared with the signal-cavity (SC) VCSEL. The wideband spectra present more square-like passband which is expected for slow light system. By using it, a 20 Gbit/s super Gaussian signal is delayed by about 13 ps with high quality. Hits: 4140 Download times: 572 View Full Text    Download reader