共 3 条
Wavelength trimming by photoabsorption-induced disordering for multiple-wavelength distributed-feedback laser arrays
被引:15
作者:
Sudoh, TK
Kumano, M
Nakano, Y
Tada, K
机构:
[1] Department of Electronic Engineering, University of Tokyo, Bunkyo-ku, Tokyo 113
关键词:
distributed-feedback lasers;
quantum-well disordering;
semiconductor laser arrays;
wavelength-division multiplexing;
wavelength trimming;
D O I:
10.1109/68.593334
中图分类号:
TM [电工技术];
TN [电子技术、通信技术];
学科分类号:
0808 ;
0809 ;
摘要:
In this letter, we describe a simple method to adjust the oscillation wavelength of distributed-feedback (DFB) lasers after the device fabrication without using any external active tuning. The method utilizes a permanent change of refractive index in quantum well active layer induced by external laser beam irradiation. We have demonstrated 0.36 mn adjustment in a 1.55-mu m ridge waveguide DFB laser.
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页码:887 / 888
页数:2
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