Recent Advances on InAs/InP Quantum Dash Based Semiconductor Lasers and Optical Amplifiers Operating at 1.55 $\mu$ m
Francois Lelarge,Beatrice Dagens,J. Renaudier,Romain Brenot,Alain Accard,F. van Dijk,Dalila Make,O. Le Gouezigou,J.-G. Provost,Francis Poingt,Jean Landreau,Olivier Drisse,Estelle Derouin,B. Rousseau,Frederic Pommereau,Guang-Hua Duan +15 more
TLDR
In this article, the InAs/InP quantum dash (QD) materials for lasers and amplifiers, and QD device performance with particular interest in optical communication are summarized.Abstract:
This paper summarizes recent advances on InAs/InP quantum dash (QD) materials for lasers and amplifiers, and QD device performance with particular interest in optical communication. We investigate both InAs/InP dashes in a barrier and dashes in a well (DWELL) heterostructures operating at 1.5 mum. These two types of QDs can provide high gain and low losses. Continuous-wave (CW) room-temperature lasing operation on ground state of cavity length as short as 200 mum has been achieved, demonstrating the high modal gain of the active core. A threshold current density as low as 110 A/cm2 per QD layer has been obtained for infinite-length DWELL laser. An optimized DWELL structure allows achieving of a T0 larger than 100 K for broad-area (BA) lasers, and of 80 K for single-transverse-mode lasers in the temperature range between 25degC and 85degC. Buried ridge stripe (BRS)-type single-mode distributed feedback (DFB) lasers are also demonstrated for the first time, exhibiting a side-mode suppression ratio (SMSR) as high as 45 dB. Such DFB lasers allow the first floor-free 10-Gb/s direct modulation for back-to-back and transmission over 16-km standard optical fiber. In addition, novel results are given on gain, noise, and four-wave mixing of QD-based semiconductor optical amplifiers. Furthermore, we demonstrate that QD Fabry-Perot (FP) lasers, owing to the small confinement factor and the three-dimensional (3-D) quantification of electronic energy levels, exhibit a beating linewidth as narrow as 15 kHz. Such an extremely narrow linewidth, compared to their QW or bulk counterparts, leads to the excellent phase noise and time-jitter characteristics when QD lasers are actively mode-locked. These advances constitute a new step toward the application of QD lasers and amplifiers to the field of optical fiber communicationsread more
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High performance mode locking characteristics of single section quantum dash lasers.
Ricardo Rosales,Stuart G. Murdoch,Regan Watts,Kamel Merghem,Anthony Martinez,Francois Lelarge,Alain Accard,Liam P. Barry,Abderrahim Ramdane +8 more
TL;DR: 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.
Journal ArticleDOI
Single-mode tunable laser emission in the single-exciton regime from colloidal nanocrystals
Christos Grivas,Chunyong Li,P. Andreakou,Pengfei Wang,Ming Ding,Gilberto Brambilla,Liberato Manna,Liberato Manna,Pavlos G. Lagoudakis +8 more
TL;DR: This work demonstrates single-exciton, single-mode, spectrally tuned lasing from ensembles of optical antenna-designed, colloidal core/shell CdSe/CdS quantum rods deposited on silica microspheres, thereby inducing a large exciton–bi-Exciton energy shift.
Journal ArticleDOI
Millimeter-Wave Photonic Components for Broadband Wireless Systems
Andreas Stohr,Sebastian Babiel,P. J. Cannard,B. Charbonnier,F. van Dijk,S. Fedderwitz,D.G. Moodie,L. Pavlovic,Lalitha Ponnampalam,Cyril C. Renaud,D. C. Rogers,Vitaly Rymanov,Alwyn J. Seeds,Andreas G. Steffan,A. Umbach,M. Weiss +15 more
TL;DR: In this paper, a self-pulsating 60 GHz range quantum-dash Fabry-Perot mode-locked laser diodes (MLLD) for passive, i.e., photonic mm-wave generation with comparably low-phase noise level of -76 dBc/Hz @ 100-kHz offset from a 58.8-GHz carrier is presented.
Journal ArticleDOI
Recent progress in ultrafast lasers based on 2D materials as a saturable absorber
TL;DR: In this article, a review of the recent progress in ultrafast laser use of 2D materials as a saturable absorber is presented, where material characteristics, fabrication techniques, and nonlinear properties are also introduced.
Journal ArticleDOI
Integrated optical frequency comb technologies
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