Browse > Article
http://dx.doi.org/10.6109/jkiice.2011.15.3.654

Improvement of Direct-Modulation Performances of Semiconductor Lasers by using Dual-Electrode Structure  

Sung, Hyuk-Kee (홍익대학교)
Publication Information
Journal of the Korea Institute of Information and Communication Engineering / v.15, no.3, 2011 , pp. 654-659 More about this Journal
Abstract
We propose a novel method to reduce laser chirp and improve modulation performance in semiconductor laser by using dual-electrode structure. Dual-electrode structure is realized by segmenting a electrode on top of gain medium, as was the case of edge emitting laser diode, into electrically isolated two electrodes. By using the proposed structure, we have experimentally achieved a reduction of laser spectral width of 0.23 nm and an improvement of 2.5-dB receiver sensitivity at an 80-km fiber transmission for 10-Gbps NRZ (non-return-to zero) data stream.
Keywords
Semiconductor laser; Modulation; Laser chirp; Optical fiber communications;
Citations & Related Records
연도 인용수 순위
  • Reference
1 K. Sato, S. Kuwahara, and Y. Miyamoto, "Chirp characteristics of 40-gb/s directly Modulated distributed-feedback laser diodes," J. Lightwave Technol., vol. 23, no. 11, pp. 3790-3797, 2005.   DOI   ScienceOn
2 S. K. Hwang, andJ. M. Tian, "Chirp reduction in directly-modulated semiconductor lasers subject to external optical injection," in IEEE Conf. Lasers and Electro-Optics (LEOS), 2005, pp. 798- 799.
3 G. de Valicourt, F. Pommereau, F. Poingt, M. Lamponi, G. H. Duan, P. Chanclou, M. A. Violas, and R. Brenot, "Chirp Reduction in Directly Modulated Multi-Electrode RSOA Devices in Passive Optical Networks," IEEE Photon. Technol. Lett., vol.22, no.19, pp.1425-1427, 2010.   DOI   ScienceOn
4 C. Chen, T. Zhaobing, K. D. Choquette, and D. V. Plant, "25-Gb/s Direct Modulation of Implant Confined Holey Vertical-Cavity Surface-Emitting Lasers," IEEE Photon. Technol. Lett., , vol. 22, no. 7, pp.465-467, 2010.   DOI   ScienceOn
5 E. Peral, W. K. Marshall, and A. Yariv, "Precise measurement of semiconductor laser chirp using effect of propagation in dispersive fiber and application to simulation of transmission through fiber gratings," J. Lightwave Technol., vol. 16, no. 10, pp. 1874 -1880, 1998.   DOI   ScienceOn
6 A. Bhardwaj, S. Ristic, L. A. Johansson, C. Althouse, and L. A. Coldren, "Direct modulation bandwidth enhancement of strongly injection-locked SG-DBR laser," Electron. Lett., vol. 46, no. 5, pp.362-363, 2010.   DOI   ScienceOn