Results 251 to 260 of about 351,550 (291)
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Broadband Mamyshev Oscillator at 1.7 μm
CLEO 2024We demonstrate a single-pulse Mamyshev oscillator at 1.7 μm using Tm-doped fiber. The results of 5.4-MHz repetition rate and 95-nm optical spectrum bandwidth at 10 dB highlight its potential application for nonlinear microscopy.
Xiaoxiao Wen +7 more
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Broadband Tunable Oscillator with Two MSW Resonators
19th European Microwave Conference, 1989, 1989A broadband tunable oscillator with two MSW resonators has been developed. The resonators with different sizes of YIG films are placed in the same magnetic field. The tunable bandwidth extends over 2 octaves up to 20 GHz.
Hideki Asao +3 more
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Broadband Hyperchaotic Oscillator With Delay Line
AIP Conference Proceedings, 2002Dynamical systems with time delay can be employed as high dimensional hyperchaotic oscillators with multiple positive Lyapunov exponents. We describe an electronic circuit composed of a 3‐stage amplifier and a delay line in the feedback loop. The 1st stage of the amplifier is a nonlinear one while the 2nd and the 3rd stages are linear ones.
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Compact cavity dumped broadband laser oscillator
SPIE Proceedings, 2009ABSTRACT Recent development of optically-pumped semiconductor laser (OPSL) technology provide a Ti:sapphire pump source reducing cost and complexity while maintaining a high standard of performance and reliability. In this paper we report on the performance of a compact (930 x 330 x 170 mm³), cavity-dumped ultrafast Ti:Sapphire laser oscillator pumped ...
Estelle Coadou +4 more
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Broadbanding of a Submillimetre-Wave Backward-Wave Oscillator
7th European Microwave Conference, 1977, 1977As a consequence of the interest shown by astronomers for observation on board a space platform in the submillimetre-wave range, the European Space Agency has initiated a research and development programme on components required for advanced submillimetre-wave heterodyne detection and particularly on the local oscillator. In order to cover the spectral
R. Bonnefoy, G. Kantorowicz, P. Palluel
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Local oscillator synthesiser module for broadband applications
IET Seminar on Wideband Receivers & Components, 2008The design and measurement of a Local Oscillator Synthesiser Module for Broadband Applications is described in this paper. Broadband receivers require local oscillators whenever heterodyning is utilised in receiver architectures to convert frequency signal to an intermediate-frequency (IF) spectrum for ease of signal processing.
A. Virdee, T. Richards
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High-Speed Spiking and Bursting Oscillations in a Long-Delayed Broadband Optoelectronic Oscillator
Journal of Lightwave Technology, 2015We investigate the generation of high-speed spiking and bursting signals in a long time-delayed broadband optoelectronic oscillator (OEO). The OEO is configured in a delayed feedback loop employing a long optical fiber delay line and other elements including a tunable laser, a phase modulator (PM) and a linearly chirped fiber Bragg grating (LCFBG), a ...
Bruno Romeira +4 more
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A broadband CMOS LC voltage-controlled oscillator for FMCW synthesizer
2014 International Symposium on Integrated Circuits (ISIC), 2014A broadband CMOS LC voltage controlled oscillator (VCO) for an FMCW synthesizer application was developed, which achieves wide tuning range and low phase noise. The VCO employs a topology of NMOS cross-coupled pair and NMOS tail current source. In order to lower phase noise while fulfill continuous tuning range of 2GHz, P-type AMOS varactors are used ...
Liheng Lou +5 more
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Two‐beam multiplexed CARS based on a broadband oscillator
Journal of Raman Spectroscopy, 2010AbstractA two‐beam multiplexed coherent anti‐Stokes Raman scattering (CARS) microscopy setup is demonstrated by using a broadband (BB) Ti:sapphire oscillator without using any specialty fibres. A well‐defined spectral structure of the source leads to a delay‐sensitive CARS measurement in two‐colour CARS and also provides an efficient means of obtaining
Kentaro Furusawa +2 more
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A broadband circular combiner/divider for planar Gunn oscillators
2nd Annual Passive RF and Microwave Components Seminar, 2011In this paper, a circular power combiner/divider using coplanar strip-lines operating at the centre frequency of 30 GHz is demonstrated. The combiner/divider has a coplanar strip-line (CPS) crossover phase inverter and it shows good isolation (
null Chong Li +3 more
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