Dual-wavelength mode-locked quantum-dot laser, via ground and excited state transitions: experimental and theoretical investigation

Cataluna, Maria Ana; Nikitichev, Daniil I.; Mikroulis, S.; Simos, Hercules; Simos, Christos; Mesaritakis, Charis; Syvridis, Dimitris; Krestnikov, I. L.; Livshits, D.A.; Rafailov, Edik U.

doi:10.1364/oe.18.012832

Cited by 55 publications

(37 citation statements)

References 16 publications

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“…13,22 Lastly, various studies have investigated the two-state lasing dynamics where ES and GS lasing can take place simultaneously either with or without external optical feedback. 21,[23][24][25] In particular, it was recently unveiled that the two-state lasing can produce a large GS modulation enhancement. [26][27][28] In order to further evaluate the potential impact of such lasers in the view of their inclusions into a fiber-pigtailed telecom module, this work aims at characterizing the long-delay optical feedback dynamics of InAs/GaAs QD Fabry-Perot (FP) lasers emitting either on the sole GS or exclusively on the ES.…”

confidence: 99%

Multimode optical feedback dynamics of InAs/GaAs quantum-dot lasers emitting on different lasing states

et al. 2016

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Quantum dot lasers are envisioned to be the next generation of optical transmitters used for short-reach communication links, owing to their low threshold current and high temperature operation. However, in a context of steady increase in both speed and reach, quantum dot lasers emitting on their upper energy levels have been recently of greater interest as they are touted for their faster modulation dynamics. This work aims at further evaluating the potential impact of such lasers in communication links by characterizing their long-delay optical feedback responses as well as the role of the lasing states on the multimode dynamics of InAs/GaAs quantum-dot Fabry-Perot devices sharing the same design. Results unveil that the excited-state laser shows a much larger sensitivity to optical feedback, with a more complex route to chaos, and a first destabilization point occurring at lower feedback strengths than for a comparable ground-state laser, which remains almost unaffected.

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confidence: 99%

Multimode optical feedback dynamics of InAs/GaAs quantum-dot lasers emitting on different lasing states

et al. 2016

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“…Owing to the absence of mechanical components, such results are of high interest as, for example, for swept laser systems, where the wavelength could be tuned at very high speeds. Considering that it is possible to have dual−wavelength mode−locking engaging both GS and ES simultaneously directly from a monolithic mode−locked QD laser [69], the results here presented are encouraging for the future development of broadly−tunable multi−wavelength mode−locked operation from QD lasers. Table 2.…”

Section: State Of the Art In The Development Of Tunable Mode−locked Qmentioning

confidence: 65%

Unlocking Spectral Versatility from Broadly−Tunable Quantum−Dot Lasers

White

Cataluna

2015

Photonics

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Wavelength−tunable semiconductor quantum−dot lasers have achieved impressive performance in terms of high−power, broad tunability, low threshold current, as well as broadly tunable generation of ultrashort pulses. InAs/GaAs quantum−dot−based lasers in particular have demonstrated significant versatility and promise for a range of applications in many areas such as biological imaging, optical fiber communications, spectroscopy, THz radiation generation and frequency doubling into the visible region. In this review, we cover the progress made towards the development of broadly−tunable quantum−dot edge−emitting lasers, particularly in the spectral region between 1.0-1.3 µm. This review discusses the strategies developed towards achieving lower threshold current, extending the tunability range and scaling the output power, covering achievements in both continuous wave and mode−locked InAs/GaAs quantum−dot lasers. We also highlight a number of applications which have benefitted from these advances, as well as emerging new directions for further development of broadly−tunable quantum−dot lasers.

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“…Unfortunately, this flexibility and accuracy of the FDTW model is linked to high computational time-consuming efforts preventing its application in the extensive mapping of dynamic operation regimes. For parametric analysis, as exemplarily depicted for the example of a pulse width mapping in Figure 2.3, a modified delay differential equations (DDEs) model is particularly suitable as it preserves high accuracy while dramatically reducing computational efficiency [13][14][15][16][17]. By an extension of the DDE numerical model, devices with nonuniform waveguide section geometries can also be described [18][19][20].…”

Section: Simulationsmentioning

confidence: 99%

“…Monolithic InAs/InGaAs two-section QD lasers offer, because of their compactness, low cost, and direct electrical pumping, very attractive features for reducing the footprint and complexity of the aforementioned applications in addition to bearing the potential to open up new avenues in ultrafast optical processing and optical interconnects [3,14]. Owing to the existence of GS and ES in the dot energy scheme, QD lasers are the ideal candidates to realize simultaneous dual-wavelength or two-state lasing.…”

Section: Simultaneous Gs and Es MLmentioning

confidence: 99%

Ultra‐Short‐Pulse QD Edge‐Emitting Lasers

Breuer

Syvridis

Рафаилов

2014

The Physics and Engineering of Compact Quantum Dot‐based Lasers for Biophotonics

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IntroductionHigh-power, electrically pumped edge-emitting monolithic semiconductor lasers based on InAs/GaAs quantum dots (QDs) offer significant advantages including ultra-short pulse generation due to ultrafast gain and absorption recovery [1, 2] and emission energies in the near-infrared spectral range [3]. Owing to their inherent inhomogeneous QD size distribution, a broadening of gain and absorption profile is realized, leading to broadband wavelengths emission. This inhomogeneous broadening together with ultrafast carrier dynamics is particularly advantageous for ultrafast applications including the generation, propagation, and amplification of subpicosecond optical pulses with high pulse peak power [4] and the generation of spectrally tunable emission [5,6]. The reduced density of states allows for the exploitation of QD materials in harnessing spectral versatility in novel dual-state emission. The spectral coverage of these QD lasers perfectly matches a wide range of relevant biophotonic applications including nonlinear excitation imaging techniques. The unique combination of efficient light generation, ultrafast carrier dynamics, and broadband gain bandwidth can deliver exclusive advantages in ultrafast microelectronic scale components, thereby stimulating major advances in ultrafast science and technology.In order to enable initial device design and optimization of novel pulse generating QD lasers and amplifiers, a new and efficient theoretical framework is presented as briefly introduced in Section 2.2. This framework takes into account specifically fundamental aspects associated with QD gain materials and allows for modeling of both continuous-wave (CW) emission and ultra-short pulse generation via passive mode-locking (PML) and subsequent amplification. The obtained understanding is applied to technologically realize and optimize QD laser and amplifier structures with particularly broad gain bandwidth enabling spectral versatility through broadband tunability of CW-emission generated in the visible wavelength range by second-harmonic-generation (SHG). This broad wavelength range is accessible only by the QD features as presented in Section 2.3. Novel functionalities based on the broad gain bandwidth and sophisticated QD laser design are explored inThe Physics and Engineering of Compact Quantum Dot-based Lasers for Biophotonics, First Edition. Edited by Edik U. Rafailov.

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Dual-wavelength mode-locked quantum-dot laser, via ground and excited state transitions: experimental and theoretical investigation

Cited by 55 publications

References 16 publications

Multimode optical feedback dynamics of InAs/GaAs quantum-dot lasers emitting on different lasing states

Multimode optical feedback dynamics of InAs/GaAs quantum-dot lasers emitting on different lasing states

Unlocking Spectral Versatility from Broadly−Tunable Quantum−Dot Lasers

Ultra‐Short‐Pulse QD Edge‐Emitting Lasers

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