A flat and broadband optical frequency comb with tunable bandwidth and frequency spacing

2014 ◽  
Vol 331 ◽  
pp. 262-266 ◽  
Author(s):  
Lei Shang ◽  
Aijun Wen ◽  
Guibin Lin ◽  
Yongsheng Gao
Keyword(s):  
Frequency Comb ◽  
Optical Frequency Comb ◽  
Optical Frequency ◽  
Frequency Spacing

High-Quality Optical Frequency Comb Generation-Based on Polarization Modulator with RF Frequency Multiplication Circuit and Intensity Modulator

2019 ◽  
Vol 0 (0) ◽  
Author(s):  
Xiuping Lv ◽  
Dan Li
Keyword(s):  
Frequency Comb ◽  
Optical Frequency Comb ◽  
Optical Frequency ◽  
Analysis Model ◽  
Frequency Multiplication ◽  
High Quality ◽  
Intensity Modulator ◽  
Polarization Modulator ◽  
Frequency Spacing ◽  
Tunable Frequency

AbstractA new approach to generate high-quality optical frequency comb (OFC) with good flatness, high bandwidth, and tunable frequency spacing is proposed. The OFC generator includes a polarization modulator and an intensity modulator (IMS), and the polarization modulator is modulated by a radio frequency multiplication circuit. The theoretical analysis model of the proposed scheme is established. The experiment stimulation results show that 35-line OFC with tunable frequency spacing and spectrum flatness of 0.3 dB and side-mode suppression ratio of 15.53 dB is gotten easily by adjusting the amplitude and frequency of the RF and the direct current bias voltage of the modulators. The stimulation results are in good agreement with the theoretical model.

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.

Optical-frequency-comb based ultrasound sensor

2017 ◽  
Author(s):  
Takeo Minamikawa ◽  
Takashi Ogura ◽  
Takashi Masuoka ◽  
Eiji Hase ◽  
Yoshiaki Nakajima ◽  
...  
Keyword(s):  
Frequency Comb ◽  
Optical Frequency Comb ◽  
Optical Frequency ◽  
Ultrasound Sensor
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