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Equilibrium mode distribution

About: Equilibrium mode distribution is a research topic. Over the lifetime, 928 publications have been published within this topic receiving 14939 citations.


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Patent
20 Aug 1999
TL;DR: In this article, a single mode waveguide and a multimode waveguide fiber which have a radially non-uniform and azimuthally asymmetric core are presented.
Abstract: Disclosed are a single mode waveguide fiber and a multimode waveguide fiber which have a radially non-uniform and azimuthally asymmetric core, and methods of making such a waveguide fiber. This asymmetry provides additional degrees of freedom for use in forming a waveguide having particular performance characteristics.

4 citations

Journal ArticleDOI
TL;DR: In this article, a silica quasi-periodic clad leakage channel fiber (LCF) was proposed to enhance the mode filtering characteristics with large effective mode area (A eff ) and differential loss for different micro-structured cladding LCF designs.

4 citations

Journal ArticleDOI
TL;DR: In this paper, the authors extended the theory of mode formation in unstable resonators to include effects associated with the spatial and temporal distribution of spontaneous emissions that contribute to the mode, and the combined effect is a significant fraction of the previous theoretical value obtained by Anan'ev.
Abstract: The theory of mode formation in unstable resonators is extended to include effects associated with the spatial and the temporal distribution of spontaneous emissions that contribute to the mode. The spatial distribution smears the far-field pattern and requires additional round-trip propagations of about 2/ln(M) to give a well-formed mode. The temporal effect depends on the rise time of the small-signal gain. The combined effect is a significant fraction of the previous theoretical value obtained by Anan’ev [ Sov. J. Quantum Electron.5, 615 ( 1975)].

4 citations

Journal ArticleDOI
TL;DR: In this article, a technique to quantify the effects of mode conversion losses in highly overmoded waveguide cavity resonators using the WKB method is presented, and the results of the theory are presented in the context of the tradeoffs associated with the design of an 85 GHz TE/sub 1.3/phase-locked gyroklystron oscillator experiment.
Abstract: A technique to quantify the effects of mode conversion losses in highly overmoded waveguide cavity resonators using the WKB method is presented. The WKB theory is accurate for weakly irregular waveguide cavities with small amounts of mode conversion. This approach to the problem has the advantage that the mode conversion losses in waveguide cavities can be quantified quickly and cheaply. The objective is to compute the amplitude and phase of a resonant mode in the cavity to zeroth order (i.e. without regard to mode conversion effects), and then use amplitude and phase of the computed zeroth-order fields to compute the amplitude of the converted mode. This approach is valid to the extent that the converted modes are not a major perturbation to the resonant mode. The results of the theory are presented in the context of the trade-offs associated with the design of an 85 GHz TE/sub 1.3/ phase-locked gyroklystron oscillator experiment. Mode conversion losses in the input cavity are a particular problem, and place limits on the amount of usable beam current (and therefore the output power capabilities of the gyroklystron). The isolation of the input and output cavities due to mode conversion must be carefully considered in any design. >

4 citations


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Performance
Metrics
No. of papers in the topic in previous years
YearPapers
20235
202212
20218
20205
20191
20183