Investigation of External Optical Feedback Resistance of IC-DFB and GC-DFB Lasers Using a Very Simple Experimental Set-up
SUN Chang-Zheng1, XIONG Bing1, LUO Yi1, NAKANO Yoshiaki2
1State Key Lab on Integrated Optoelectronics, Department of Electronic Engineering, Tsinghua University, Beijing 100084
2Department of Electronic Engineering, University of Tokyo, 7-3-1 Hongo, Bunkyo-ku, Tokyo 113-8656, Japan
Investigation of External Optical Feedback Resistance of IC-DFB and GC-DFB Lasers Using a Very Simple Experimental Set-up
SUN Chang-Zheng1;XIONG Bing1;LUO Yi1;NAKANO Yoshiaki2
1State Key Lab on Integrated Optoelectronics, Department of Electronic Engineering, Tsinghua University, Beijing 100084
2Department of Electronic Engineering, University of Tokyo, 7-3-1 Hongo, Bunkyo-ku, Tokyo 113-8656, Japan
Abstract： We study the external optical feedback resistance of both index-coupled (IC) and gain-coupled distributed feedback (DFB) lasers using a very simple experimental set-up. Though IC-DFB lasers with large coupling coefficients are found to be less sensitive to external reflection, they suffer from mode instability at high injection level. On the other hand, the introduction of gain-coupling mechanism can significantly improve both the immunity to external optical feedback and the single mode yield of the device.
(Optoelectronic device characterization, design, and modeling)
引用本文:
SUN Chang-Zheng;XIONG Bing;LUO Yi;NAKANO Yoshiaki. Investigation of External Optical Feedback Resistance of IC-DFB and GC-DFB Lasers Using a Very Simple Experimental Set-up[J]. 中国物理快报, 2003, 20(7): 1061-1063.
SUN Chang-Zheng, XIONG Bing, LUO Yi, NAKANO Yoshiaki. Investigation of External Optical Feedback Resistance of IC-DFB and GC-DFB Lasers Using a Very Simple Experimental Set-up. Chin. Phys. Lett., 2003, 20(7): 1061-1063.
2003, Vol. 20 
