Dual-Wavelength Distributed Feedback Laser for CWDM Based on Non-Identical Quantum Well
Xie Hong-Yun; Pan Jiao-Qing; Zhao Ling-Juan; Zhu Hong-Liang; Wang Lu-Feng; Wang Wei; Xie Hong-Yun; National Research Center of Optoelectronic Technology, Institute of Semiconductors, Chinese Academy of Sciences, Beijing 100083; Pan Jiao-Qing; National Research Center of Optoelectronic Technology, Institute of Semiconductors, Chinese Academy of Sciences, Beijing 100083; Zhao Ling-Juan; National Research Center of Optoelectronic Technology, Institute of Semiconductors, Chinese Academy of Sciences, Beijing 100083; Zhu Hong-Liang; National Research Center of Optoelectronic Technology, Institute of Semiconductors, Chinese Academy of Sciences, Beijing 100083; Wang Lu-Feng; National Research Center of Optoelectronic Technology, Institute of Semiconductors, Chinese Academy of Sciences, Beijing 100083; Wang Wei; National Research Center of Optoelectronic Technology, Institute of Semiconductors, Chinese Academy of Sciences, Beijing 100083
Журнал:
Chinese Physics Letters
Дата:
2006-01-01
Аннотация:
Using non-identical quantum wells as the active material, a new distributed-feedback laser is fabricated with period varied Bragg grating. The full width at half maximum of 115 nm is observed in the amplified spontaneous emission spectrum of this material, which is flatter and wider than that of the identical quantum wells. Two wavelengths of 1.51 μm and 1.53 μm are realized under different work conditions. The side-mode suppression ratios of both wavelengths reach 40 dB. This device can be used as the light source of coarse wavelength division multiplexer communication systems.
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