Extreme bandwidth spectrum analysis

Merkel, K.D.; Bekker, Scott H.; Traxinger, Aaron S.; Stiffler, Colton; Woidtke, Alex J.; Chase, Michael D.; Babbitt, W.R.; Harrington, Cal H.; Barber, Zeb W.

doi:10.1109/ipcon.2016.7831193

Cited by 3 publications

(5 citation statements)

References 1 publication

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“…The architecture is strikingly simple and is based on a pair of frequency shifting loops. The performances (spectral bandwidth, frequency and time resolution) are comparable to state-of-the-art analog solutions [2,3]. The dynamics has been recently enhanced up to 30 dB, currently limited by the saturation of the amplifier.…”

Section: Resultsmentioning

confidence: 88%

“…As a result, spectral analysis of broadband signals remains a crucial issue, since a high bandwidth is associated with high spatial resolution in radar, a high data rate in telecommunications, and a low probability of interception in defense applications. On the contrary, analog techniques offer interesting prospects, as they are not subject to the same clock and information volume constraints as digital techniques [2,3]. A number of analog solutions on photonic platforms have been proposed [4,5].…”

Section: Introductionmentioning

confidence: 99%

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Compact photonic RF real-time spectrum analyzer with 16 GHz instantaneous bandwidth

Guillet de Chatellus

2024

Terahertz, RF, Millimeter, and Submillimeter-Wave Technology and Applications XVII

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So far, the instantaneous bandwidth of conventional digital real-time spectrum analyzers is limited to a few GHz, a limitation set by the clock jitter of the analog-to-digital converters, and by the processing capabilities in real time of digital electronics. Here, we propose a simple analog architecture of RF spectrum analyzer based on photonic frequency-shifting loops. It utilizes only compact commercial telecom components, a single CW laser, and slow electronic resources (10 MSa/s). The probability of intercept is 100%, the instantaneous bandwidth reaches 16 GHz, and the spectral and temporal resolutions are respectively equal to 160 MHz and 50 µs.

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Section: Resultsmentioning

confidence: 88%

Section: Introductionmentioning

confidence: 99%

Compact photonic RF real-time spectrum analyzer with 16 GHz instantaneous bandwidth

Guillet de Chatellus

2024

Terahertz, RF, Millimeter, and Submillimeter-Wave Technology and Applications XVII

View full text Add to dashboard Cite

show abstract

“…As expected the readout peak power linearly follows the input power before saturating above 10 dBm input power. From this study we estimate the dynamic range of our spectral analyzer 15.2 dB, which is low compared to state-of-the-art wideband spectrum analyzers [2], but encouraging given the low absorption of the sample (around αL ≃ 0.4 with the triple pass configuration, to be compared with αL = 1−3 in the S2corp device [16]).…”

Section: Dynamic Rangementioning

confidence: 73%

“…The bandwidth and the resolution of such a device are linked to the inhomogeneous and homogeneous widths of the SHB medium, respectively. It is now being produced as a device by S2Corporation [2] and operates at 793 nm. This wavelength is imposed by the choice of the rare earth iondoped crystal (Tm:LuYAG) allowing a 35 GHz instantaneous bandwidth together with a sub-MHz resolution.…”

Section: Introductionmentioning

confidence: 99%

Telecom wavelength optical processor for wideband spectral analysis of radiofrequency signals

Louchet-Chauvet¹,

Berger²,

Nouchi³

et al. 2020

Laser Phys.

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In this paper we present a spectral analyzer for wideband RF signals with a spectral holeburning-based architecture operating at telecom wavelength. This device is based on a codoped Er 3+ :Sc 3+ :Y2SiO5 crystal whose inhomogeneous linewidth allows for wideband operation. With time-resolved holeburning spectroscopy experiments we study the homogeneous linewidth and spectral diffusion in an unusual magnetic field configuration. We finally demonstrate the spectral analysis of RF signals with 28 GHz instantaneous bandwidth and MHz resolution. This work opens the way towards more complex architectures such as direction finding with wideband capacity.

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“…Increasing the analysis bandwidth can be achieved by analog solutions based on photonic approaches [2], where the MW signal is transposed in the optical domain and then processed to retrieve the spectral information. One promising technique is the spectral hole burning in ion-doped crystals at cryogenic temperature [3], with an instantaneous real time bandwidth of several tens of GHz, a frequency resolution of hundreds of kHz and a large dynamic range (> 50 dB) [4]. However, although cooling technique has made impressive progress with closed cryocoolers now available, there is a need for complementary solutions that are compact, can be operated at room temperature and require low power consumption, in particular for onboard components.…”

Section: Introductionmentioning

confidence: 99%

A quantum radio frequency signal analyzer based on nitrogen vacancy centers in diamond

et al. 2022

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The rapid development of radio-frequency (RF) technologies requires tools which can efficiently monitor the electromagnetic landscape. Broadband real-time RF spectral analyzers need to operate at room temperature, with low power consumption and have a compact design for on-board device integration. Here we describe a Quantum Diamond Signal Analyzer (Q-DiSA) which detects RF signals over a tunable frequency range of 25 GHz with frequency resolution down to 1 MHz, a millisecond temporal resolution and a large dynamic range (40 dB). This approach exploits the room temperature spin properties of an ensemble of nitrogen-vacancy (NV) centers in diamond. Performance is enabled via our analyzer architecture which combines a specific diamond crystallographic cut with a simplified magnetic arrangement. This allows us to maintain the alignment of the magnetic field along the nitrogen-vacancy center axis whilst frequency tuning. These results demonstrate the potential of the Q-DiSA method for real-time broadband spectral analysis.

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Extreme bandwidth spectrum analysis

Cited by 3 publications

References 1 publication

Compact photonic RF real-time spectrum analyzer with 16 GHz instantaneous bandwidth

Compact photonic RF real-time spectrum analyzer with 16 GHz instantaneous bandwidth

Telecom wavelength optical processor for wideband spectral analysis of radiofrequency signals

A quantum radio frequency signal analyzer based on nitrogen vacancy centers in diamond

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