&lt;title&gt;Compact optical delay line rf filter using a surface-emitting laser diode array&lt;/title&gt;

Keefer, Christopher W.

doi:10.1117/12.177418

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Characteristics Of Experimental 64-element Tapped Delay Line1

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1995

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“…Our test setup gave us current versus voltage for each of the 64-elements, thereby assuring us before the actual testing started, that all of the 64-elements were operative. Our characterization consisted of testing each element, to each one of the four different grounding pins (1,18,35, and 52). The VCSEL was connected through an SMU 3 (Ground) and SMU 1 (Source) to an HP 16058-60003 Personality Board, which was then connected to an HP 4145B Semiconductor Parameter Analyzer with a GPIB to an HP 7090A Measuring Plotting System.…”

Section: Characteristics Of Experimental 64-element Tapped Delay Linementioning

confidence: 99%

<title>Applications of microlaser arrays to tapped delay line systems</title>

Walge

Turbyfill

1995

SPIE Proceedings

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We present an overview of continuing research on a dynamic optical system for producing variable delays of radio frequency (RF) signals. Our approach utilizes both a 16 & 64 tap programmable delay line. The approach uses a micro-laser diode array to tap an acousto-optic (AO) cell at various spatial positions along the acoustic channel. This generates multiple delayed versions of the input signal to the AO cell. The use of the laser diode array allows for a programmable time delay, programmable weighting of each delay, a large number of delays equal to the number of elements in the diode array, and multiple delays at one time. This architecture, upon completion of future compatibility testing will replace an existing multi AO cell tap delay line as part of an adaptive optical processor for side lobe jamming cancellation.

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Section: Characteristics Of Experimental 64-element Tapped Delay Linementioning

confidence: 99%