High-Speed Wavelength Switching at TDA-DFB Laser Based on a Nonlinear Model

2020 ◽  
Vol 32 (21) ◽  
pp. 1377-1380
Author(s):  
Yuri Niiya ◽  
Takeshi Kuboki ◽  
Kazutoshi Kato
Keyword(s):  
Nonlinear Model ◽  
High Speed ◽  
Wavelength Switching ◽  
Dfb Laser

scholarly journals High Speed Direct Modulation of a Heterogeneously Integrated InP/SOI DFB Laser

2016 ◽  
Vol 34 (8) ◽  
pp. 1683-1687 ◽  
Author(s):  
Amin Abbasi ◽  
Christos Spatharakis ◽  
Giannis Kanakis ◽  
Nuno Sequeira Andre ◽  
Hadrien Louchet ◽  
...  
Keyword(s):  
High Speed ◽  
Direct Modulation ◽  
Dfb Laser

Nonlinear Model Predictive Control for Automatic Train Operation with Actuator Saturation and Speed Limit

2014 ◽  
Vol 678 ◽  
pp. 377-381
Author(s):  
Long Sheng Wang ◽  
Hong Ze Xu
Keyword(s):  
Model Predictive Control ◽  
Predictive Control ◽  
Nonlinear Model ◽  
High Speed ◽  
Actuator Saturation ◽  
Tracking Error ◽  
Nonlinear Model Predictive Control ◽  
Speed Limit ◽  
Speed Tracking ◽  
Automatic Train Operation

This paper addresses a position and speed tracking problem for high-speed train automatic operation with actuator saturation and speed limit. A nonlinear model predictive control (NMPC) approach, which allows the explicit consideration of state and input constraints when formulating the problem and is shown to guarantee the stability of the closed-loop system by choosing a proper terminal cost and terminal constraints set, is proposed. In NMPC, a cost function penalizing both the train position and speed tracking error and the changes of tracking/braking forces will be minimized on-line. The effectiveness of the proposed approach is verified by numerical simulations.

1.55 μm High Speed Partly Gain-Coupled DFB Lasers with Periodically Etched Strained-Layer Quantum Wells

1997 ◽  
Vol 08 (03) ◽  
pp. 475-494 ◽  
Author(s):  
Toshihiko Makino
Keyword(s):  
Quantum Wells ◽  
High Speed ◽  
Carrier Transport ◽  
Stop Band ◽  
Longitudinal Distribution ◽  
Modulation Bandwidth ◽  
Carrier Injection ◽  
Strained Layer ◽  
High Modulation ◽  
Dfb Laser

The high speed performance of partly gain-coupled (GC) DFB lasers consisting of periodically etched strained-layer quantum wells (QW's) is reviewed with comparisons to the equivalent index-coupled (IC) DFB lasers with the same active layers. It is shown that the GC DFB laser has a –3 dB modulation bandwidth of 22 GHz at 10 mW with a stable single mode oscillation at the longer side of the Bragg Stop-band due to in-phase gain coupling. A theoretical analysis is also presented based on the local-normal-mode transfer-matrix laser model which takes into account both the longitudinal distribution of laser parameters and carrier transport effects. The mechanism for high modulation bandwidth of the GC DFB laser is attributed to a higher differential gain due to a reduced carrier transport time which is provided by an effecient carrier injection from the longitudinal etched interface of the QW's.

High-Speed Modulation of Lateral p-i-n Diode Structure Electro-Absorption Modulator Integrated With DFB Laser

2015 ◽  
Vol 33 (6) ◽  
pp. 1235-1240 ◽  
Author(s):  
Koichi Hasebe ◽  
Tomonari Sato ◽  
Koji Takeda ◽  
Takuro Fujii ◽  
Takaaki Kakitsuka ◽  
...  
Keyword(s):  
High Speed ◽  
Diode Structure ◽  
Speed Modulation ◽  
Dfb Laser ◽  
High Speed Modulation
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