Dual-wavelength passive and hybrid mode-locking of 3, 4.5 and 10 GHz InAs/InP(100) quantum dot lasers

M.S. Tahvili, L. Du, M.J.R. Heck, R. Nötzel, M.K. Smit, E.A.J.M. Bente

Research output: Contribution to journalArticleAcademicpeer-review

10 Citations (Scopus)
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Abstract

We present an investigation of passive and hybrid mode-locking in Fabry-Pérot type two-section InAs/InP(100) quantum dot lasers that show dual wavelength operation. Over the whole current and voltage range for mode-locking of these lasers, the optical output spectra show two distinct lobes. The two lobes provide a coherent bandwidth and are verified to lead to two synchronized optical pulses. The generated optical pulses are elongated in time due to a chirp which shows opposite signs over the two spectral lobes. Self-induced mode-locking in the single-section laser shows that the dual-wavelength spectra correspond to emission from ground state. In the hybrid mode-locking regime, a map of locking range is presented by measuring the values of timing jitter for several values of power and frequency of the external electrical modulating signal. An overview of the systematic behavior of InAs/InP(100) quantum dot mode-locked lasers is presented as conclusion.
Original languageEnglish
Pages (from-to)8117-8135
Number of pages19
JournalOptics Express
Volume20
Issue number7
DOIs
Publication statusPublished - 2012

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