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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Acknowledgements
On behalf of all authors, the corresponding author states that there is no conflict of interest. This work is supported by the National Natural Science Foundation of China under Grant 61405068.
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Pan, Y., Xi, Y. & Li, X. Monolithically integrated chirp-managed laser based on a resonant tunneling filter. Opt Rev 24, 549–553 (2017). https://doi.org/10.1007/s10043-017-0346-7
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DOI: https://doi.org/10.1007/s10043-017-0346-7