Widely wavelength-tunable ultra-flat frequency comb generation using conventional dual-drive Mach-Zehnder modulator

Sakamoto, Takahide; Kawanishi, Tetsuya; Izutsu, Masayuki

doi:10.1049/el:20071267

Cited by 136 publications

(71 citation statements)

References 5 publications

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“…Se aplica la corriente a los dos SOAs cortocircuitados, en pasos de 2 mA desde 0 a 65 mA. Los moduladores de fase EOM 1 and EOM 2 del brazo superior del MZI son polarizados con voltajes de V 1 =V 2 = -1.3V; los moduladores EOM 3 y EOM 4 son conectados a tierra. Esto establece una polarización asimétrica de los moduladores de fase, lo cual genera el desplazamiento de fase necesario para conseguir la planitud del espectro.…”

Section: B Resultados Experimentales Del Ofcg Basado En Un Láser Aniunclassified

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Circuitos integrados fotónicos para la generación de frecuencias ópticas (OFCG)

Carrera

Carpintero

2018

CCTESPE

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Resumen-Se presentan los avances realizados en el desarrollo de generadores de peines de frecuencias ópticas (OFCG Frequency Comb Generator) mediante circuitos integrados fotónicos (PIC, Photonic Integrated Circuits). Estos son diseñados y fabricados en un proceso de construcción común en plataformas genéricas de integración. Se muestran los resultados experimentales de las diferentes clases de OFCG destacándose los grandes anchos de banda logrados, en el orden de THz. Se resalta la factibilidad de disponer circuitos fotónicos miniaturizados en sistemas de banda ancha y otras aplicaciones futuras en el marco de la nanotecnología. Palabras Claves-Circuitos integrados fotónicos, diodo láser, fibras ópticas, fotónica, peine de frecuencias ópticas.Abstract-We present the progress made in the development of optical frequency combs generators (OFCG) using Photonic Integrated Circuits (PIC). These are designed and manufactured in a common building process in generic integration platforms. The experimental results of the different OFCG classes are shown, highlighting the large bandwidths achieved, in the order of THz. The feasibility of providing miniaturized photonic circuits in broadband systems and other future applications in the framework of nanotechnology is highlighted.

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Section: B Resultados Experimentales Del Ofcg Basado En Un Láser Aniunclassified

“…Las técnicas más utilizadas para conseguir OFCG son: a) Moduladores en cascada [4], [5], b) Moduladores en anillo recirculante [6] y c) Láseres mode-locked [7].…”

Section: Introducción Los Generadores De Frecuencias óPticas (Ofcgunclassified

Circuitos integrados fotónicos para la generación de frecuencias ópticas (OFCG)

Carrera

Carpintero

2018

CCTESPE

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“…We use an auxiliary laser that pumps the same manifold and observe rapid changes induced in the spectrum by making use of a recently demonstrated technique [40], based on a comb generated by the modulation of a continuous-wave (cw) laser [41][42][43][44]. The comb is directly mapped to the electrical domain without any spectral compression [40,45] in order to approach the ultimate Fourier limit.…”

Section: Introductionmentioning

confidence: 99%

Real-Time Dynamic Atomic Spectroscopy Using Electro-Optic Frequency Combs

et al. 2016

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3. The right to use all or part of the Article, including the APS-prepared version without revision or modification, on the author(s)' web home page or employer's website and to make copies of all or part of the Article, including the APS-prepared version without revision or modification, for the author(s)' and/or the employer's use for educational or research purposes." November 2016Real-Time Dynamic Atomic Spectroscopy Using Electro-Optic Frequency Combs Spectroscopy is a key technology for both fundamental and applied science. A long-held desire has been the development of a means to continuously acquire broadband spectral data with simultaneous high time and frequency resolution. Frequency-comb technology can open this door: here, we use a spectroscopic technique based on an electro-optic comb to make continuous observations of cesium vapor across a 3.2-GHz spectral bandwidth with a 2-μs time resolution and with 10-MHz frequency sampling. We use a rapidly switched pump laser to burn narrow features into the spectral line and study the response to this step perturbation. This examination allows us to see a number of unexpected effects, including the temporal evolution of the bandwidth, the amplitude, and the frequency of these burnt features. We also report on the previously unobserved effect of radiation reabsorption, which slowly produces a broad pedestal of perturbation around each feature. We present models that can explain these dynamical effects.

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“…18 The method based on a mode locked laser does not offer free spectral range tunability and also suffers from cavity complexity. 19 Several methods have been reported for optical frequency locked multicarrier generation incorporating modulators in cascade [20][21][22][23][24][25] and using recirculating frequency shifting (RFS) loop [26][27][28][29][30][31][32][33][34][35] for frequency locked multicarrier generation. All the modulators used in cascade and RFS loops are driven by amplified RF clocks along with phase shifters and optical filters.…”

Section: Introductionmentioning

confidence: 99%

Pulsed laser-based optical frequency comb generator for high capacity wavelength division multiplexed passive optical network supporting 1.2 Tbps

et al. 2016

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, "Pulsed laser-based optical frequency comb generator for high capacity wavelength division multiplexed passive optical network supporting 1.2 Tbps," Opt. Eng. 55(9), 096106 (2016), doi: 10.1117/1.OE.55.9.096106. Abstract. An architecture for flattened and broad spectrum multicarriers is presented by generating 60 comb lines from pulsed laser driven by user-defined bit stream in cascade with three modulators. The proposed scheme is a cost-effective architecture for optical line terminal (OLT) in wavelength division multiplexed passive optical network (WDM-PON) system. The optical frequency comb generator consists of a pulsed laser in cascade with a phase modulator and two Mach-Zehnder modulators driven by an RF source incorporating no phase shifter, filter, or electrical amplifier. Optical frequency comb generation is deployed in the simulation environment at OLT in WDM-PON system supports 1.2-Tbps data rate. With 10-GHz frequency spacing, each frequency tone carries data signal of 20 Gbps-based differential quadrature phase shift keying (DQPSK) in downlink transmission. We adopt DQPSK-based modulation technique in the downlink transmission because it supports 2 bits per symbol, which increases the data rate in WDM-PON system. Furthermore, DQPSK format is tolerant to different types of dispersions and has a high spectral efficiency with less complex configurations. Part of the downlink power is utilized in the uplink transmission; the uplink transmission is based on intensity modulated on-off keying. Minimum power penalties have been observed with excellent eye diagrams and other transmission performances at specified bit error rates.

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Widely wavelength-tunable ultra-flat frequency comb generation using conventional dual-drive Mach-Zehnder modulator

Cited by 136 publications

References 5 publications

Circuitos integrados fotónicos para la generación de frecuencias ópticas (OFCG)

Circuitos integrados fotónicos para la generación de frecuencias ópticas (OFCG)

Real-Time Dynamic Atomic Spectroscopy Using Electro-Optic Frequency Combs

Pulsed laser-based optical frequency comb generator for high capacity wavelength division multiplexed passive optical network supporting 1.2 Tbps

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