Search Results - "optical frequency comb"

We propose and demonstrate an optical pulse generator using optoelectronic oscillator (OEO) and Fabry-Perot phase modulator (FP-PM). A complete theoretical analysis is developed, and the advantages of the proposed system are also discussed. The optical frequency comb (OFC) is generated with an OEO l...

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Traditional high-precision long-distance time–frequency transmission requires a complex compensation structure and a continuous optical link, which make high-precision transmission difficult. In this study, we use two counter-propagating optical frequency combs to realize high-precision t...

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We propose and experimentally demonstrate a photonic millimeter-wave frequency divider based on a super-harmonic injection-locked optoelectronic oscillator (OEO) and an optical frequency comb. The optical frequency comb generator is incorporated into an OEO loop to create broadband comb lines with l...

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Ultra-dense broadband optical frequency combs with sub-MHz frequency spacing and stabilized carrier-envelope offset (CEO) are needed for many important applications, including high-accuracy real-time sub-Doppler spectroscopy, precise characterization of photonic devices, and greenhouse gas sounding....

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Thermal effects are ubiquitous in high-quality resonators and microcomb-based high precision measurements. We present a stability analysis of the thermodynamics in a driven Kerr microresonator theoretically and numerically, using the thermal Lugiato-Lefever model. We analyze the spatial bifurcation...

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A scheme for parametric optical frequency comb (OFC) generation using an electroabsorption modulated laser (EML) based optoelectronic oscillator is proposed and experimentally demonstrated. A phase modulator is cascaded with EML in the oscillating loop. In addition, the phase modulated laser is used...

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We have designed and fabricated a Kerr frequency comb oscillator with 27.5&#x00A0;GHz repetition rate by pumping a whispering gallery mode crystalline resonator with a laser at 1560&#x00A0;nm center wavelength. The oscillator is stabilized to the Rb<inline-formula><tex-math notation...

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We present the first carrier-envelope offset (CEO) frequency stabilization of a fiber laser by cross gain modulation. The Yb-doped fiber laser is mode-locked by nonlinear polarization evolution and emits 32-nm wide dissipative solitons at a repetition rate of 125&#x00A0;MHz with 150 mW of averag...

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This work presents a cost-effective optical frequency comb generator (CEOFCG) solution for generating multiple, equally spaced carriers in wavelength-division-multiplexing coherent optical fiber communication systems (WDM-COFCS). It enables the replacement of multiple laser sources with a single con...

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In this paper, a parallel multiband frequency-conversion scheme for satellite applications based on a single optical frequency comb is proposed, and a reconfigurable satellite transponder is designed for future multiband broadband satellites. In addition, we establish a test system of onboard multib...

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The article presents a short statistical overview of photonics research in the Western Balkans, with more spotlight aimed at the field of optical frequency combs with focus on the overview of the research conducted at the University of Belgrade-School of Electrical Engineering. We give a review of p...

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A novel Terahertz-wave (THz-wave) generation on the strength of optical frequency comb and single push-pull Mach-Zehnder modulator (MZM) with a pair of transmitter and receiver in 0.4-THz band is proposed. The advantages of the optical frequency comb based on phase modulator (PM) 1 and PM2 in series...

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In this paper, a continuously tunable microwave photonic filter (MPF) with optical frequency comb (OFC) generated by recirculating frequency shifter (RFS) based on an inphase&#x002F;quadrature (I&#x002F;Q) modulator is proposed and experimentally demonstrated. A chirped fiber Bragg grating (...

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In order to increase the scalability and reduce the complexity of photonic multipath SIC systems, a photonic multipath self-interference cancellation (SIC) method based on optical frequency comb (OFC) is proposed. The OFC is generated by continuously frequency-shifting the seed laser in the re-circu...

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A new optoelectronic oscillator (OEO) is implemented for a novel self-sustained flat-topped self-oscillating optical frequency comb generator (SO-OFCG), which can be deployed in terahertz optical transmission. The OFCG is designed from a cascaded configuration of an electro-absorption modulator and...

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A novel photonics-based channelization approach is proposed for broadband radio frequency (RF) spectrum measurement with a single optical frequency comb, sliced coherent detection (SCD), and improved fast fourier transform-based digital signal processing. Through SCD, channel estimation and spectrum...

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For civil and military applications, the ability to instantaneously capture and process wideband RF (radio-frequency) signal is of great importance. In this paper, a novel photonics-assisted RF channelized receiver aiming for instantaneous broadband RF signal reception is proposed and experimentally...

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We proposed and experimentally demonstrated a novel and simple method to realize D-band millimeter-wave (mm-wave) single-sideband (SSB) vector signal generation using cascaded one single-drive Mach-Zehnder modulator (MZM) and one push-pull MZM. After the first MZM driven by a radio frequency (RF) si...

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We designed and demonstrated a power-efficient highly integrated photonic system, requiring a total power consumption of 1.7&#x00A0;W and producing a spectrally pure coherent optical signal with a wavelength range of 23 nm in the C-band. The system consists of a compact, low-power InP-based phot...

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We demonstrate the performance of a novel integrated gain switched optical frequency comb source (GS-OFCS) in two different optical transmission systems. The device generates a 6.25-GHz frequency spaced comb that comprises eight spectral tones in a 3-dB spectral power ripple. The GS-OFCS presents go...

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