scholarly journals Performance Evaluation of All-Optical OFDM System- Based Optical Frequency Comb Source/

2019 ◽  
Vol 14 (4) ◽  
Author(s):  
Yousif Ibrahim Hammadi
Keyword(s):  
Performance Evaluation ◽  
Frequency Comb ◽  
Optical Frequency Comb ◽  
Optical Frequency ◽  
Ofdm System ◽  
All Optical ◽  
Optical Ofdm

scholarly journals Photonic Crystal Cavity-Based Intensity Modulation for Integrated Optical Frequency Comb Generation

Crystals ◽  
2019 ◽  
Vol 9 (10) ◽  
pp. 493 ◽  
Author(s):  
Henry Francis ◽  
Si Chen ◽  
Kai-Jun Che ◽  
Mark Hopkinson ◽  
Chaoyuan Jin
Keyword(s):  
Photonic Crystal ◽  
Frequency Comb ◽  
Coupling Efficiency ◽  
Optical Frequency Comb ◽  
Optical Frequency ◽  
Integrated Optical ◽  
All Optical ◽  
In Series ◽  
Comb Generation ◽  
Different Characteristics

A simple scheme to generate an integrated, nanoscale optical frequency comb (OFC) is numerically studied. In this study, all optical intensity modulators based on photonic crystal (PhC) cavities are cascaded both in series and parallel. By adjusting the modulation parameters, such as the repetition rate, phase, and coupling efficiency of the modulating wave, it is possible to produce combs with a variety of different characteristics. Unique to PhC intensity modulators, in comparison with standard lithium niobate modulators, is the ability to control the amplitude of the light via a cavity rather than controlling the phase through one arm of a Mach–Zehnder interferometer. This opens up modulation-based OFC generation to new possibilities in both nanoscale operation and cavity-based schemes.

Performance monitoring on the orthogonality among the multisubcarriers of an all-optical OFDM system

2009 ◽  
Author(s):  
Shumin Zou ◽  
Nan Chi ◽  
Yufeng Shao ◽  
Xi Zheng ◽  
Junwen Zhang ◽  
...  
Keyword(s):  
Performance Monitoring ◽  
Ofdm System ◽  
All Optical ◽  
Optical Ofdm

scholarly journals Tunable mm-wave A-RoF transmission scheme employing an optical frequency comb and dual-stage active demultiplexer

2021 ◽  
pp. 1-1
Author(s):  
Prajwal D Lakshmijayasimha ◽  
Syed Tajammul Ahmad ◽  
Eamonn Martin ◽  
Anandarajah M Prince ◽  
Aleksandra Maria Kaszubowska-Anandarajah
Keyword(s):  
Frequency Comb ◽  
Optical Frequency Comb ◽  
Optical Frequency ◽  
Transmission Scheme ◽  
Dual Stage

scholarly journals Coherent control of acoustic phonons in a silica fiber using a multi-GHz optical frequency comb

2021 ◽  
Vol 4 (1) ◽  
Author(s):  
Mamoru Endo ◽  
Shota Kimura ◽  
Shuntaro Tani ◽  
Yohei Kobayashi
Keyword(s):  
Coherent Control ◽  
Continuous Wave ◽  
Frequency Comb ◽  
Effective Interaction ◽  
Interaction Strength ◽  
Single Mode ◽  
Optical Frequency Comb ◽  
Material Structure ◽  
Optical Frequency ◽  
Acoustic Phonons

AbstractMulti-gigahertz mechanical vibrations that stem from interactions between light fields and matter—known as acoustic phonons—have long been a subject of research. In recent years, specially designed functional devices have been developed to enhance the strength of the light-matter interactions because excitation of acoustic phonons using a continuous-wave laser alone is insufficient. However, the strength of the interaction cannot be controlled appropriately or instantly using these structurally-dependent enhancements. Here we show a technique to control the effective interaction strength that does not operate via the material structure in the spatial domain; instead, the method operates through the structure of the light in the time domain. The effective excitation and coherent control of acoustic phonons in a single-mode fiber using an optical frequency comb that is performed by tailoring the optical pulse train. This work represents an important step towards comb-matter interactions.

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