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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 |
| National Research Center of Optoelectronic Technology, Institute of Semiconductors, Chinese Academy of Sciences, Beijing 100083 |
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| Cite this article: |
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XIE Hong-Yun, PAN Jiao-Qing, ZHAO Ling-Juan et al 2006 Chin. Phys. Lett. 23 126-128 |
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Abstract 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 115nm 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 1.51μm and 1.53μm are realized under different work conditions. The side-mode suppression ratios of both wavelengths reach 40dB. This device can be used as the light source of coarse wavelength division multiplexer communication systems.
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| Keywords:
42.55.Px
42.70.Hj
42.60.Da
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Published: 01 January 2006
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| PACS: |
42.55.Px
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(Semiconductor lasers; laser diodes)
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42.70.Hj
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(Laser materials)
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42.60.Da
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(Resonators, cavities, amplifiers, arrays, and rings)
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