On-Axis Irradiance of a Focused, Apertured Gaussian Beam

Holmes, D. A.; Avizonis, Petras V.; Wrolstad, K. H.

doi:10.1364/ao.9.002179

Cited by 12 publications

(3 citation statements)

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“…Thus we abandon this plan and intend to optimize the beam parameters for a maximum light intensity across the receiving telescope. As deduced from [23] the maximum intensity is reached for the waist placed at the transmitting telescope's aperture. For long arms the on-axis far-field intensity at the receiver can then be expressed as where α is the waist radius in units of the telescope radius:…”

Section: Lasers Optics and Photoreceiversmentioning

confidence: 84%

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Towards a gravitational wave observatory designer: sensitivity limits of spaceborne detectors

Barke

Wang

Delgado

et al. 2015

Class. Quantum Grav.

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The most promising concept for low frequency (millihertz to hertz) gravitational wave observatories are laser interferometric detectors in space. It is usually assumed that the noise floor for such a detector is dominated by optical shot noise in the signal readout. For this to be true, a careful balance of mission parameters is crucial to keep all other parasitic disturbances below shot noise. We developed a web application that uses over 30 input parameters and considers many important technical noise sources and noise suppression techniques to derive a realistic position noise budget. It optimizes free parameters automatically and generates a detailed report on all individual noise contributions. Thus one can easily explore the entire parameter space and design a realistic gravitational wave observatory. In this document we describe the different parameters, present all underlying calculations, and compare the final observatory's sensitivity with astrophysical sources of gravitational waves. We use as an example parameters currently assumed to be likely applied to a space mission proposed to be launched in 2034 by the European Space Agency. The web application itself is publicly available on the Internet at http://spacegravity.org/designer. Future versions of the web application will Content from this work may be used under the terms of the Creative Commons Attribution 3.0 licence. Any further distribution of this work must maintain attribution to the author(s) and the title of the work, journal citation and DOI. incorporate the frequency dependence of different noise sources and include a more detailed model of the observatory's residual acceleration noise.

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Section: Lasers Optics and Photoreceiversmentioning

confidence: 84%

“…Figure16. The response to gravitational waves of a single link (here: aligned with the x-axis) depends on the gravitational wave incident vector k with orthogonal components u and v. The actual oscillation is polarization dependent as indicated in Figure15.…”

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confidence: 99%