Monolithically integrated chirp-managed laser based on a resonant tunneling filter |
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Authors: | Yue Pan author-information" >,Yanping Xi,Xun Li |
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Affiliation: | 1.Wuhan National Laboratory for Optoelectronics,Huazhong University of Science and Technology,Wuhan,China;2.Department of Electrical and Computer Engineering,McMaster University,Hamilton,Canada |
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Abstract: | We have proposed a monolithically integrated chirp-managed laser (CML) that consists of a directly modulated single-mode DFB laser and an optical spectrum reshaper (OSR) filter based on a double-slanted-trench resonant tunneling structure (DST-RTS). Slanted trenches facilitates the occurrence of resonant tunneling effect, which produces a steep-edge narrow-band OSR filter, and meanwhile directing most of the reflected waves out of the laser cavity, consequently eliminating the need of an isolator. Characteristics of the DST-RTS filter have been investigated and simulation results show that the proposed 25 Gbps 1.55 μm CML can send signal over 22 km standard single-mode fiber for bit error rate of 10?12. |
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