InAs/InP Quantum Dash Semiconductor Coherent Comb Lasers and their Applications in Optical Networks

Lü, Zhenguo; Liu, Jiaren; Poole, Philip J.; Mao, Youxin; Weber, John; Liu, Guocheng; Barrios, Pedro

doi:10.1109/jlt.2020.3043284

Cited by 40 publications

(13 citation statements)

References 46 publications

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“…9(a) for two such modes, and the received eye diagram for the BtB and SMF transmission in Fig. 9(b) [7], [61]. As such, successful communication was achieved for all the 48 individually transmitted comb lines with BER below the FEC threshold, while some achieved error-free operation (BER < 10 9 ), with a BER floor around −15 dBm.…”

Section: A C-band Smf Transmissionmentioning

confidence: 80%

“…The lower plot of Fig. 8(c Four-level pulse amplitude modulation (PAM4) was first incorporated as a modulation scheme in the Qdash MLL based WDM communication system [7], [61]. PAM4 has been obtaining substantial attention due to its simplicity and reliable performance compared to other high-order modulation schemes such as 16QAM [55], [62], [63].…”

Section: A C-band Smf Transmissionmentioning

confidence: 99%

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Towards InAs/InP Quantum-Dash Laser-Based Ultra-High Capacity Heterogeneous Optical Networks: A Review

Khan

2022

IEEE Access

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The unprecedented increase in internet traffic witnessed in the last few years has pushed the community to explore heterogeneous optical networks, including free-space-optics (FSO) communication, radio-over-fiber (RoF), wireless (WL), and their convergent hybrid technologies. This stems from the possibility of seamless integration with the existing fiber-optic backhaul networks while providing muchneeded flexibility and scalability. Moreover, efficient optical transceivers, particularly light sources in the form of semiconductor laser diodes, are key in meeting the future demands of the next generation green optical access networks. In this respect, InAs/InP Quantum-dash (Qdash) nanostructure-based lasers have shown tremendous progress in the past few years with applications spanning from a wavelength division multiplexed (WDM) optical communication to recently, millimeter-wave (MMW) over fiber networks. This waveguide-based laser diode (LD) has demonstrated a rule-changing broad multi-wavelength lasing emission, thanks to the inherent and wavelength-tunable wide gain profile offered by the Qdash activegain region covering S-to U-band regions. Moreover, exploiting mode-locking and optical injection locking assisting techniques, highly coherent InAs/InP Qdash comb laser source at 1550 nm and 1610 nm have been respectively realized, thus opening a new paradigm for their potential applications in green optical and 5G access networks. In this work, progress on utilizing InAs/InP Qdash LD, supporting several sub-carriers, in energy-efficient ∼1550 nm and ∼1610 nm WDM heterogeneous optical networks with single-modefibers (SMF) has been highlighted, exhibiting aggregate data rates of 11 -12 Tb/s by employing a single device, and accommodating PAM4 and higher-order 32-QAM modulation schemes. Moreover, the recent deployment of this LD in the RoF domain, targeting MMW frequency band, for convergent fiber-wireless networks, is also summarized, with demonstrated 25 to >100 GHz MMW beat-tone frequency generates and transmission of up to 24 Gb/s.

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Section: A C-band Smf Transmissionmentioning

confidence: 80%

Section: A C-band Smf Transmissionmentioning

confidence: 99%

Towards InAs/InP Quantum-Dash Laser-Based Ultra-High Capacity Heterogeneous Optical Networks: A Review

Khan

2022

IEEE Access

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“…It is clear that the quantum dash based laser is significantly better than the QW device for high speed data communication as a consequence of the improved noise performance. With these lasers we have been able to demonstrate data rates up to 224 Gb/s per channel in a 16QAM dual polarisation scheme (16QAM 48 × 28 GBaud PDM), with an aggregate data transmission rate of 10.7 Tb/s for the whole laser spectrum, and 5.4 Tb/s using PAM4 encoding [2].…”

Section: Qpsk Networking Performancementioning

confidence: 99%

“…In particular the ability of the QDot and QDash-based InP lasers to spontaneously mode-lock, producing very short pulses at high repetition rates, and hence produce stable coherent frequency combs is very powerful. These lasers are excellent sources for wavelength division multiplexing for coherent and non-coherent data-communication systems, allowing potential data rates exceeding 10 Tb/s using just a single Fabry-Pérot laser [2].…”

mentioning

confidence: 99%

A Performance Comparison Between Quantum Dash and Quantum Well Fabry-Pérot Lasers

Poole

Lü

Liu

et al. 2021

IEEE J. Quantum Electron.

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We directly compare the performance of 1.55 µm Fabry-Pérot lasers using quantum well (QW) and quantum dash gain regions. Other than the gain medium the designs were identical, grown in the same growth system, and processed at the same time. The static laser performance (light-current and spectral) were similar for both gain materials but the intensity and phase noise characteristics of the dash based lasers were significantly better. This was attributed to the self mode-locking of the dash lasers that was not observed for the QW lasers. This reduction in noise allowed individual lasing lines from the Fabry-Pérot dash lasers to be used for data transmission using high order modulation schemes, with quadrature phaseshift keying (QPSK) demonstrated at a symbol rate of 32 GBaud. This performance could not be achieved using the equivalent QW based laser.

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“…Recent years driven by the rapid advancements of telecommunication industry such as 5G millimeter wave signals and passive optical network (PON) [1][2][3][4][5] as well as the photonic applications, high demand for light sources exhibiting high lasing power, narrow linewidth, and broad spectral bandwidth. Quantum dot (QD) multi-wavelength lasers have been considered as a promising light source.…”

Section: Introductionmentioning

confidence: 99%

Investigation of self-injection locking threshold on a quantum dot comb laser

Song,

Lu,

et al. 2024

Optical Components and Materials XXI

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In this work, we demonstrate the establishment of a self-injection locking threshold in a quantum dot (QD) comb laser with a Fabry-Perot cavity and an external feedback loop. This process involves controlling injection power and polarization to inject a controlled fraction of lasing power back into the QD laser source. The study is focused on the single line self-injection locking effects. The self-injection locking process was characterized by a self-injection locking threshold power (PSIL) and a locked power (Plocked). The self-injection locking process begins from the threshold power PSIL and followed by a magnified enhancement till it reaches the locked power (Plocked). Once in the locked region, the enhancement effect starts to stabilize and is only weakly influenced by injection power. The established threshold provides a distinctive condition for the measurements of the modified optical properties of the coupled cavity system. Additionally, the locked single lines tested at different currents indicated a very broad spectral coverage which are much larger than the original bandwidth of free running QD laser.

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InAs/InP Quantum Dash Semiconductor Coherent Comb Lasers and their Applications in Optical Networks

Cited by 40 publications

References 46 publications

Towards InAs/InP Quantum-Dash Laser-Based Ultra-High Capacity Heterogeneous Optical Networks: A Review

Towards InAs/InP Quantum-Dash Laser-Based Ultra-High Capacity Heterogeneous Optical Networks: A Review

A Performance Comparison Between Quantum Dash and Quantum Well Fabry-Pérot Lasers

Investigation of self-injection locking threshold on a quantum dot comb laser

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