The single-longitudinal-mode operation of a ridge waveguide laser based on two-dimensional photonic crystals |
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| Authors: | Wang Hua-Yong and Xu Xing-Sheng |
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| Affiliation: | State Key Laboratory of Integrated Optoelectronics, Institute of Semiconductors, Chinese Academy of Sciences, Beijing 100083, China |
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| Abstract: | An electrically driven, single-longitudinal-mode GaAs based photonic crystal (PC) ridge waveguide (RWG) laser emitting at around 850 nm is demonstrated. The single-longitudinal-mode lasing characteristic is achieved by introducing the PC to the RWG laser. The triangle PC is etched on both sides of the ridge by photolithography and inductive coupled plasma (ICP) etching. The lasing spectra of the RWG lasers with and without the PC are studied, and the result shows that the PC purifies the longitudinal mode. The power per facet versus current and current-voltage characteristics have also been studied and compared. |
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| Keywords: | ridge waveguide laser photonic crystals single-longitudinal mode effective index guided mode |
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