Journal
IEEE PHOTONICS TECHNOLOGY LETTERS
Volume 27, Issue 20, Pages 2119-2122Publisher
IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC
DOI: 10.1109/LPT.2015.2453977
Keywords
Chaos; dynamics; monolithically integrated semiconductor lasers (MISLs); optical injection
Funding
- National Natural Science Foundation of China [61178011, 61275116, 61475127]
- Open Fund of State Key Laboratory of Millimeter Waves of China [K201418]
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Influences of external optical injection on the nonlinear dynamics of a three-section monolithically integrated semiconductor laser (MISL) are investigated experimentally. The results show that, for the solitary three-section MISL, diversely dynamical states including the stable state as well as the so-called period-one, period-two, multi-period, and chaotic states can be observed through adjusting the currents of the gain section (I-G) and the phase section (I-P). However, the chaotic operation region of the solitary MISL in the parameter space of I-G and I-P is very small and found to exist when 21.28 mA < I-G < 26.40 mA and 31 mA < I-P < 37 mA. After introducing an external optical injection, the MISL originally operating at other dynamical states can always be driven into chaotic state under suitable injection strength and frequency detuning, and a relatively large I-G will be helpful for obtaining broad and continuous chaotic regions in the parameter space of injection strength and frequency detuning.
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