A high dynamic range wideband heterodyne acousto-optical channelizer

Yee, T. K.; Chalfant, Charles H.; Coward, James F.; Titus, J.R.; Morrow, Howard E.; Henderson, D. M.; Salsman, J.T.; Pechner, D.; Newell, J.L.; Strunk, Stephen J.; Morrisroe, K.M.

doi:10.1109/ultsym.1989.67033

Cited by 2 publications

(4 citation statements)

References 6 publications

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“…In order to monitor the entire frequency range, the receiver must scan over the entire frequency range, which takes a considerable amount of time and lowers the probability of intercept. The acoustooptic (AO) channelizer was proposed in the late 1970's to alleviate the bandwidth bottleneck [3]- [6]. The advantages of the AO channelizer is the fine channel resolution (on the order of several kilohertz).…”

Section: Potential Applicationsmentioning

confidence: 99%

“…The advantages of the AO channelizer is the fine channel resolution (on the order of several kilohertz). Channel isolation greater than 50 dB and signal-to-noise ratios (SNR's) greater than 70 dB have also been demonstrated [6]. However, the transducers used to generate the acoustic waves can only operate up to several gigahertz of bandwidth.…”

Section: Potential Applicationsmentioning

confidence: 99%

“…This opens up many new applications such as optical channelization of broad-band RF signals [3] and down-converting of single-channel high-frequency signals [4]. The OFC generated by Bragg cells has been sucessfully applied to acoustooptic (AO) channelizers [3], [5], [6]. The frequency range of Bragg cells, however, is limited to a few gigahertz.…”

Section: Introductionmentioning

confidence: 99%

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CW injection locking of a mode-locked semiconductor laser as a local oscillator comb for channelizing broad-band RF signals

Jung

Shen

Tong³

et al. 1999

IEEE Trans. Microwave Theory Techn.

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CW injection locking of mode-locked semiconductor lasers has been experimentally demonstrated. The phases of the mode-locked frequency comb are shown to be coherent with that of the master CW laser. The pulsewidth of the mode-locked laser remains almost unchanged (<2 ps) for a broad range of injection power (028 to 012 dBm). Pulling of the entire modelocked frequency comb by 400 MHz has been demonstrated. The coherent multifrequency source can be used as a local oscillator comb for coherent optical channelizers for ultrawide-band RF signals.

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Section: Potential Applicationsmentioning

confidence: 99%

Section: Potential Applicationsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

CW injection locking of a mode-locked semiconductor laser as a local oscillator comb for channelizing broad-band RF signals

Jung

Shen

Tong³

et al. 1999

IEEE Trans. Microwave Theory Techn.

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“…Acousto-optic (AO) devices have been used for a number of applications including tunable optical filters, spectrum analyzers, channelizers, and signal processors [3,4,5]. Recently, AO devices have received some attention for use as optical switches for communications applications.…”

Section: Introductionmentioning

confidence: 99%

<title>Sixteen-channel acousto-fiber-optic barrel shifter</title>

1995

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We have designed, built, and tested a sixteen channel fiber optic switching system based on the use of a bulk acousto-optic (AO) Bragg cell. The operational configuration known as a "barrel shift" was developed specifically for fiber optic data acquisition system upgrades for the Collider Detector at Fermilab (CDF) in Batavia, Illinois. The prototype switch was delivered to CDF and is planned for tests targeting CDF upgrades in the next few years [1,2}. Its use is intended for switching systems that specifically route time division multiplexed data channels. The acousto-optic barrel shifter (AOBS) simultaneously switches 16 parallel input optical fibers through a sequence of 16 separate states; after a complete cycle, all input channels have been routed to all output fibers for a total of 256 separate connections. The performance of the switch was demonstrated by switching transition times of 1 psec, bit-error-rates (BERs) less than i02 at 1.2 Gbits/sec, operation over a range of optical wavelengths from 1285 nm to 1320 nm, and low dependence on optical polarization. The optics package was contained in a portable enclosure 12 inches wide, 6 inches in height, and 16 inches in length.

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A high dynamic range wideband heterodyne acousto-optical channelizer

Cited by 2 publications

References 6 publications

CW injection locking of a mode-locked semiconductor laser as a local oscillator comb for channelizing broad-band RF signals

CW injection locking of a mode-locked semiconductor laser as a local oscillator comb for channelizing broad-band RF signals

<title>Sixteen-channel acousto-fiber-optic barrel shifter</title>

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