Mode-Locking and Noise Characteristics of InAs/InP Quantum Dash/Dot Lasers

Liu, Guocheng; Poole, Philip J.; Lü, Zhenguo; Liu, Jiaren; Song, Chunying; Mao, Youxin; Barrios, Pedro

doi:10.1109/jlt.2023.3244777

Cited by 6 publications

(4 citation statements)

References 36 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…InP is characterized by high carrier mobility and low toxicity, making InP-based applications more reliable and promising as a future alternative to Cd-based applications (Zhang et al, 2019;Chen et al, 2020). In addition, with its large absorption coefficient and tunable emission from the visible to the near-infrared region, different nanosized InP quantum structures (dot/wire/disk) can be used in many areas such as quantum LEDs (Won et al, 2019), quantum dot/dash lasers (Liu et al, 2023), quantum sensing applications (Chang et al, 2023) and etc (Liang et al, 2022).…”

Section: Resultsmentioning

confidence: 99%

Efficient Energy Level Calculations in InP 2D-Quantum Box with Two Distinct Potentials Using the Sparse Numerov Method

KOÇ

2024

Iğdır Üniversitesi Fen Bilimleri Enstitüsü Dergisi

View full text Add to dashboard Cite

In this study, energy level calculations for an InP 2D quantum box structure with two distinct (infinite potential power-exponential) potential potentials have been conducted using the sparse Numerov method. The 2D Schrödinger equation has been transformed in accordance with the sparse Numerov approach, followed by the creation of the solution matrix employing appropriate finite difference expressions. A comparative analysis of calculation results has been performed with respect to CPU time, memory usage, and ground state energy for both O(h^4) and O(h^6) accuracy. The suitability of the sparse Numerov method for 2D nanostructures has been thoroughly discussed. The results revealed that the sparse Numerov approach yields physically meaningful and rational outcomes in the InP 2D quantum box structure. Importantly, it demands significantly lower CPU time and memory resources compared to the classical Numerov method, emphasizing its practical applicability in this context.

show abstract

Section: Resultsmentioning

confidence: 99%

Efficient Energy Level Calculations in InP 2D-Quantum Box with Two Distinct Potentials Using the Sparse Numerov Method

KOÇ

2024

Iğdır Üniversitesi Fen Bilimleri Enstitüsü Dergisi

View full text Add to dashboard Cite

show abstract

“…Despite the higher frequency noise than its counterpart, the QD laser comb is a compelling solution for high-volume data transmission. The transmission capacity of a single comb line in a QD laser comb is beyond 40 Gbaud PAM4 27 , which allows for a total transmission capacity exceeding 12 Tbps 49,50 . Linewidth locking technologies are being investigated to further reduce the QD laser linewidth to kilohertz level and sub-kilohertz level 44 .…”

Section: Discussionmentioning

confidence: 99%

Broadband quantum-dot frequency-modulated comb laser

et al. 2023

View full text Add to dashboard Cite

Frequency-modulated (FM) laser combs, which offer a quasi-continuous-wave output and a flat-topped optical spectrum, are emerging as a promising solution for wavelength-division multiplexing applications, precision metrology, and ultrafast optical ranging. The generation of FM combs relies on spatial hole burning, group velocity dispersion, Kerr nonlinearity, and four-wave mixing (FWM). While FM combs have been widely observed in quantum cascade Fabry-Perot (FP) lasers, the requirement for a low-dispersion FP cavity can be a challenge in platforms where the waveguide dispersion is mainly determined by the material. Here we report a 60 GHz quantum-dot (QD) mode-locked laser in which both the amplitude-modulated (AM) and the FM comb can be generated independently. The high FWM efficiency of –5 dB allows the QD laser to generate FM comb efficiently. We also demonstrate that the Kerr nonlinearity can be practically engineered to improve the FM comb bandwidth without the need for GVD engineering. The maximum 3-dB bandwidth that our QD platform can deliver is as large as 2.2 THz. This study gives novel insights into the improvement of FM combs and paves the way for small-footprint, electrically pumped, and energy-efficient frequency combs for silicon photonic integrated circuits (PICs).

show abstract

“…If a QW-MLL is used as laser source, it can generate multiple optical carriers simultaneously and solely, but it is not stable and coherent enough hence the phase noise after heterodyne detection is high [7]. In this paper, InAs/InP quantum dash (QD) MLL is adopted as laser source It possesses the capability to generate tens of highly coherent optical carriers, known as comb lines, the RF linewidth after heterodyne detection can be as low as 15 kHz [10]. The phase noise after heterodyne detection is also low enough, which is -45dB at 10KHz [10].…”

Section: Introductionmentioning

confidence: 99%

“…In this paper, InAs/InP quantum dash (QD) MLL is adopted as laser source It possesses the capability to generate tens of highly coherent optical carriers, known as comb lines, the RF linewidth after heterodyne detection can be as low as 15 kHz [10]. The phase noise after heterodyne detection is also low enough, which is -45dB at 10KHz [10]. Therefore, QD-MLL have gained significant attention as a promising solution for mmWave RoF applications.…”

Section: Introductionmentioning

confidence: 99%

Frequency multiplexing in millimeter-wave over fiber fronthaul transmission links with an InAs/InP quantum dash mode-locked laser

Xie,

Liu,

et al. 2024

Terahertz, RF, Millimeter, and Submillimeter-Wave Technology and Applications XVII

Self Cite

View full text Add to dashboard Cite

This work has proposed and compared several millimeter wave (mmWave) radio-over-fiber (RoF) frequency multiplexing techniques based on InAs/InP quantum dash (QD) mode locked laser (MLL). QD-MLL is capable of generating tens of highly coherent optical carriers simultaneously with same frequency difference. After heterodyne detection, the RF phase noise of QD-MLL can be as low as 15kHz. In this paper, four different RoF based mmWave frequency multiplexing architecture is proposed and compared in experimentation. The EVM of two 2GBaud/s 16-QAM mmWave signal can be as low as 7.1% after demultiplexing in the experimentation.

show abstract

Mode-Locking and Noise Characteristics of InAs/InP Quantum Dash/Dot Lasers

Cited by 6 publications

References 36 publications

Efficient Energy Level Calculations in InP 2D-Quantum Box with Two Distinct Potentials Using the Sparse Numerov Method

Efficient Energy Level Calculations in InP 2D-Quantum Box with Two Distinct Potentials Using the Sparse Numerov Method

Broadband quantum-dot frequency-modulated comb laser

Frequency multiplexing in millimeter-wave over fiber fronthaul transmission links with an InAs/InP quantum dash mode-locked laser

Contact Info

Product

Resources

About