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High performance mode locking characteristics of single section quantum dash lasers.

TLDR
The phase profile dependence on cavity length and injection current is experimentally evaluated, demonstrating the possibility of efficiently using the wide spectral bandwidth exhibited by these quantum dash structures for the generation of high peak power sub-picosecond pulses with low radio frequency linewidths.
Abstract
Mode locking features of single section quantum dash based lasers are investigated. Particular interest is given to the static spectral phase profile determining the shape of the mode locked pulses. The phase profile dependence on cavity length and injection current is experimentally evaluated, demonstrating the possibility of efficiently using the wide spectral bandwidth exhibited by these quantum dash structures for the generation of high peak power sub-picosecond pulses with low radio frequency linewidths.

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Citations
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Journal ArticleDOI

Theory of Frequency-Modulated Combs in Lasers with Spatial Hole Burning, Dispersion, and Kerr Nonlinearity.

TL;DR: In this article, the full set of Maxwell-Bloch equations is reduced to a single master equation for frequency-modulated (FM) frequency combs to provide insight into the governing mechanisms behind phase locking, which reveals that the recently observed linear frequency chirp is caused by the combined effects of spatial hole burning, group velocity dispersion, and Kerr nonlinearity due to asymmetric gain.
Journal ArticleDOI

Self-assembled InAs/InP quantum dots and quantum dashes: Material structures and devices

TL;DR: In this paper, the authors reviewed the progress of both Qdots and Qdash devices, based on the InAs/InGaAlAs/AlA/InP and InAs-InGaAsP/INP material systems, from the angles of growth and device performance.
Posted Content

Evidence of Linear Chirp in Mid-Infrared Quantum Cascade Lasers

TL;DR: In this article, the intermodal phase relation of a quantum cascade laser frequency comb operating at 8 um using coherent beatnote spectroscopy was measured and reproducible after cycling the power of the device, and to smoothly varying with driving current.
Journal ArticleDOI

In-Phase and Anti-Phase Synchronization in a Laser Frequency Comb.

TL;DR: This work describes the formation of two types of laser frequency combs as a system of oscillators coupled through the beating of the lasing modes, and experimentally shows two completely different types of synchronization in a quantum dot laser-in-phase and splay-phase states.
Journal ArticleDOI

Self-generation of optical frequency comb in single section quantum dot Fabry-Perot lasers: a theoretical study.

TL;DR: A physical understanding of spontaneous OFC generation in single section Quantum Dot (QD) lasers is provided by simulating the multi-mode dynamics of a single section Fabry-Perot (FP) QD laser using a Time-Domain Traveling-Wave (TDTW) model.
References
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Journal ArticleDOI

Mode-locking of lasers

TL;DR: The evolution of the theory of mode-locking over the last three and a half decades is reviewed and some of the salient experiments are discussed in the context of theory as discussed by the authors, with two-cycle pulses of a mode-locked Ti:sapphire laser.
Journal ArticleDOI

Model for passive mode locking in semiconductor lasers

TL;DR: In this paper, a model describing passive mode locking, a set of differential equations with time delay, was derived and analyzed in a parameter range typical of semiconductor lasers and the limit of a slow saturable absorber was analyzed analytically.
Journal ArticleDOI

312-fs pulse generation from a passive C-band InAs/InP quantum dot mode-locked laser.

TL;DR: For the first time, femtosecond pulses from a passive single-section InAs/InP quantum-dot (QD) mode-locked laser (MLL) with the active length of 456 microm and ridge width of 2.5 microm are reported.
Journal ArticleDOI

InAs/InP Quantum-Dot Passively Mode-Locked Lasers for 1.55-μ m Applications

TL;DR: In this paper, a comparison of single-section and standard two-section InAs/InP quantum-dot-based lasers is given for the first time, and it is shown that the latter can achieve 1.55 μm linewidth with very high bit rate all-optical signal processing, frequency comb generation, radio over fiber, and low noise all-noise oscillators.
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