0000000000460372

AUTHOR

Alexey V. Andrianov

showing 3 related works from this author

Optical Frequency Combs Generated in Silica Microspheres in the Telecommunication C-, U-, and E-Bands

2021

Optical frequency combs (OFCs) generated in microresonators with whispering gallery modes are demanded for different applications including telecommunications. Extending operating spectral ranges is an important problem for wavelength-division multiplexing systems based on microresonators. We demonstrate experimentally three spectrally separated OFCs in the C-, U-, and E-bands in silica microspheres which, in principle, can be used for telecommunication applications. For qualitative explanation of the OFC generation in the sidebands, we calculated gain coefficients and gain bandwidths for degenerate four-wave mixing (FWM) processes. We also attained a regime when the pump frequency was in t…

Physics::OpticsSoliton (optics)MultiplexingPhysics::GeophysicsFour-wave mixingNonlinear Sciences::Adaptation and Self-Organizing Systemssilica microsphereDispersion (optics)Radiology Nuclear Medicine and imagingApplied optics. PhotonicsInstrumentationMixing (physics)PhysicsComputer simulationQuantitative Biology::Neurons and Cognitionbusiness.industryDegenerate energy levelsAtomic and Molecular Physics and OpticsTA1501-1820Raman OFCoptical frequency comb (OFC)Whispering-gallery wavefour-wave mixingTelecommunicationsbusinesssoliton-like spectrumPhotonics
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Demonstration of a fiber optical communication system employing a silica microsphere-based OFC source.

2021

The fabrication of microsphere resonators and the generation of optical frequency combs (OFC) have achieved a significant breakthrough in the past decade. Despite these advances, no studies have reported the experimental implementation and demonstration of silica microsphere OFCs for data transmission. In this work, to the best of our knowledge, we experimentally for the first time present a designed silica microsphere whispering-gallery-mode microresonator (WGMR) OFC as a C-band light source where 400 GHz spaced carriers provide data transmission of up to 10 Gbps NRZ-OOK modulated signals over the standard ITU-T G.652 telecom fiber span of 20 km in length. A proof-of-concept experiment is …

Materials scienceFabricationbusiness.industryOptical communication02 engineering and technology021001 nanoscience & nanotechnology01 natural sciencesAtomic and Molecular Physics and OpticsPower (physics)010309 opticsResonatorOpticsModulation0103 physical sciencesFiber0210 nano-technologybusinessQuadrature amplitude modulationData transmissionOptics express
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Kerr Optical Frequency Combs With Multi-FSR Mode Spacing in Silica Microspheres

2021

We experimentally demonstrate Kerr optical frequency combs (OFCs) with mode spacing of 1, 2, 3, 5, 6, and 8 free spectral ranges (FSRs) corresponding to 0.4, 0.8, 1.2, 2, 2.4, and 3.2 THz, respectively, in silica microspheres pumped by CW C-band lasers in the anomalous dispersion range. Experimental realizations are based on using standard telecom equipment and components such as SMF-28e fiber for producing microspheres and fiber tapers for pump coupling and OFC outcoupling. Numerical simulation is performed to support the experimental results and explain the observed spectral asymmetry in OFCs by the influence of the 3rd-order dispersion.

CouplingSteady stateMaterials scienceComputer simulationTerahertz radiationbusiness.industry02 engineering and technologyLaserAtomic and Molecular Physics and OpticsElectronic Optical and Magnetic Materialslaw.invention020210 optoelectronics & photonicsSpectral asymmetrylawDispersion (optics)0202 electrical engineering electronic engineering information engineeringOptoelectronicsFiberElectrical and Electronic EngineeringbusinessIEEE Photonics Technology Letters
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