Dynamic analysis of radiation and side-mode suppression in a second-order DFB laser using time-domain large-signal traveling wave model

Zhang, L.M.; Yu, Siu Fung; Nowell, M.C.; Marcenac, D.D.; Carroll, J.E.; Plumb, R.G.

doi:10.1109/3.299461

Cited by 177 publications

(65 citation statements)

References 31 publications

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“…식 (10)을 만족하게 된다 [8] . [8][9][10][11][12] . 입력 단에 주입되는 NB-ASE(Narrowband-amplified spontaneous emission) 잡음은 화이트 잡음 주파수 영역에서 각 주파수 성분들의 위상이 랜덤하도록 잡음을 발생한 후 적절히 대역 필터링하여 얻었다.…”

Section: 시영역 모델링 방법unclassified

Modeling of Active Layer and Injection-locking Characteristics in Polarized and Unpolarized Fabry-Perot Laser Diodes

Chung

Yi²,

Cho³

2012

Korean Journal of Optics and Photonics

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Modeling of Active Layer and Injection-locking Characteristics inPolarized and Unpolarized Fabry-Perot Laser Diodes (Received January 6, 2012; Revised manuscript February 14, 2012; Accepted February 14, 2012) In this paper, injection-locking characteristics versus active layer structures in Fabry-Perot laser diodes (FP-LD) are compared. TE and TM gain spectra and peak gains versus carrier density in polarized and unpolarized multiple quantum well structures and in an unpolarized bulk structure are calculated. The calculated gain parameters are applied to a time-domain large-signal model to simulate the injection-locking characteristics. The results show that RIN in unpolarized FD-LDs is about 3 dB lower than that in a polarized FP-LD and that the eye characteristics of the unpolarized FP-LD are much better than those of the polarized FP-LD.

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Section: 시영역 모델링 방법unclassified

Modeling of Active Layer and Injection-locking Characteristics in Polarized and Unpolarized Fabry-Perot Laser Diodes

Chung

Yi²,

Cho³

2012

Korean Journal of Optics and Photonics

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“…However, time-domain simulations cannot be performed analytically when considering more complex devices or effects caused by parasitic elements. In such scenarios, different simulation techniques, such as finite-difference time-domain (FDTD) [1], time-domain traveling wave (TDTW) [2,3], split-step method (SSM) [4], coupled mode theory (CMT) [5], or convolution-based methods [6], operate on component or circuit level. However, a trade-off between efficiency and accuracy has to be made when using these techniques [5].…”

Section: Introductionmentioning

confidence: 99%

Numerical modeling of a linear photonic system for accurate and efficient time-domain simulations

Spina

Xing

et al. 2018

Photon. Res.

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In this paper, a novel modeling and simulation method for general linear, time-invariant, passive photonic devices and circuits is proposed. This technique, starting from the scattering parameters of the photonic system under study, builds a baseband equivalent state-space model which splits the optical carrier frequency and operates at baseband, thereby significantly reducing the modeling and simulation complexity without losing accuracy. Indeed, it is possible to analytically reconstruct the port signals of the photonic system under study starting from the time-domain simulation of the corresponding baseband equivalent model. However, such equivalent models are complex-valued systems and, in this scenario, the conventional passivity constraints are not applicable anymore. Hence, the passivity constraints for scattering parameters and state-space models of baseband equivalent systems are presented, which are essential for time-domain simulations. Three suitable examples demonstrate the feasibility, accuracy and efficiency of the proposed method.

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“…The amplitude can be derived from Maxwell's equations by exploiting the slowly varying envelope approximation and treating the electric-field induced variations of the optical complex refractive index as a small perturbation [17,18]. The time-dependent traveling-wave equation describing the optical field propagation is as follows [17,18] …”

Section: B Optical-field Modelmentioning

confidence: 99%

“…The numerical solution of the microwave and optical traveling-wave equations is obtained by a finite-difference approach [17,18]. The basic idea is to longitudinally divide the device into an integer number of small sections having equal length.…”

Section: Appendix IImentioning

confidence: 99%

See 1 more Smart Citation

Time-Domain Large-Signal Modeling of Traveling-Wave Modulators on SOI

Bahrami

Sepehrian

Park

et al. 2016

J. Lightwave Technol.

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Abstract-Silicon photonic modulators have strong nonlinear behavior in phase modulation and frequency response, which needs to be carefully addressed when they are used in high-capacity transmission systems. We demonstrate a comprehensive model for depletion-mode Mach-Zehnder modulators (MZMs) on silicon-on-insulator, which provides a bridge between device design and system performance optimization. Our methodology involves physical models of p-n-junction phase-shifters and traveling-wave electrodes, as well as circuit models for the dynamic microwave-light interactions and time-domain analysis. Critical aspects in the transmission line design for high-frequency operation are numerically studied for a case of p-n-junction loaded coplanar-strip electrode. The dynamic interaction between light and microwave is simulated using a distributed circuit model solved by the finite-difference time-domain method, allowing for accurate prediction of both small-signal and large-signal responses. The validity of the model is confirmed by the comparison with experimental results for a series push-pull MZM with a 6 mm phase shifter. The simulation shows excellent agreement with experiment for high-speed operation up to 46 Gbps. We show that this time-domain model can well predict the impact of the nonlinear behavior on the large-signal response, in contrast to the poor prediction from linear models in the frequency domain.

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Dynamic analysis of radiation and side-mode suppression in a second-order DFB laser using time-domain large-signal traveling wave model

Cited by 177 publications

References 31 publications

Modeling of Active Layer and Injection-locking Characteristics in Polarized and Unpolarized Fabry-Perot Laser Diodes

Modeling of Active Layer and Injection-locking Characteristics in Polarized and Unpolarized Fabry-Perot Laser Diodes

Numerical modeling of a linear photonic system for accurate and efficient time-domain simulations

Time-Domain Large-Signal Modeling of Traveling-Wave Modulators on SOI

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