CROSS-DISCIPLINARY PHYSICS AND RELATED AREAS OF SCIENCE AND TECHNOLOGY |
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Temperature Characteristics of Monolithically Integrated Wavelength-Selectable Light Sources |
HAN Liang-Shun, ZHU Hong-Liang**, ZHANG Can, MA Li, LIANG Song, WANG Wei |
Key Laboratory of Semiconductor Materials Science, Institute of Semiconductors, Chinese Academy of Sciences, Beijing 100083
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Cite this article: |
HAN Liang-Shun, ZHU Hong-Liang, ZHANG Can et al 2013 Chin. Phys. Lett. 30 108501 |
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Abstract The temperature characteristics of monolithically integrated wavelength-selectable light sources are experimentally investigated. The wavelength-selectable light sources consist of four distributed feedback (DFB) lasers, a multimode interferometer coupler, and a semiconductor optical amplifier. The oscillating wavelength of the DFB laser could be modulated by adjusting the device operating temperature. A wavelength range covering over 8.0 nm is obtained with stable single-mode operation by selecting the appropriate laser and chip temperature. The thermal crosstalk caused by the lateral heat spreading between lasers operating simultaneously is evaluated by oscillating-wavelength shift. The thermal crosstalk approximately decreases exponentially as the increasing distance between lasers.
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Received: 08 June 2013
Published: 21 November 2013
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