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We report, for the first time to our knowledge, on the self-injection locking of chirped InAs/InP quantum-dash (QDash) lasers with ~6.5 nm locked Fabry-Perot mode tunability, in the L-band wavelength emission. The modes exhibited ~30 dB side mode suppression ratio (SMSR) with ~8–9 dBm mode power. Generally, the locked mode SMSR and tunability is found to be limited by the L-band amplifier amplified spontaneous emission noise. This demonstration paves the potential deployment of widely tunable self-locked broadband QDash laser modes as sub-carriers’ generator in the next generation high capacity fiber based and wireless optical networks.
© 2017 Optical Society of America
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