Tera-sample-per-second single-shot device analyzer

Bai, Zhuoya; Lonappan, Cejo Konuparamban; Jiang, Tianwei; Madni, A.M.; Yan, Fengping; Jalali, Bahram

doi:10.1364/oe.27.023321

Cited by 23 publications

(5 citation statements)

References 46 publications

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“…5 a). During the measurement, the FEOM is biased at its quadrature point to eliminate the second-order intermodulation distortion 65 , and fed by a signal generator. To minimize the effect of third-order distortions, it is ensured that the modulator is not overdriven.…”

Section: Resultsmentioning

confidence: 99%

Differential phase-diversity electrooptic modulator for cancellation of fiber dispersion and laser noise

Ordouie,

Jiang,

Zhou

et al. 2023

Nat Commun

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Bandwidth and noise are fundamental considerations in all communication and signal processing systems. The group-velocity dispersion of optical fibers creates nulls in their frequency response, limiting the bandwidth and hence the temporal response of communication and signal processing systems. Intensity noise is often the dominant optical noise source for semiconductor lasers in data communication. In this paper, we propose and demonstrate a class of electrooptic modulators that is capable of mitigating both of these problems. The modulator, fabricated in thin-film lithium niobate, simultaneously achieves phase diversity and differential operations. The former compensates for the fiber’s dispersion penalty, while the latter overcomes intensity noise and other common mode fluctuations. Applications of the so-called four-phase electrooptic modulator in time-stretch data acquisition and in optical communication are demonstrated.

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Section: Resultsmentioning

confidence: 99%

Differential phase-diversity electrooptic modulator for cancellation of fiber dispersion and laser noise

Ordouie,

Jiang,

Zhou

et al. 2023

Nat Commun

Self Cite

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show abstract

“…5a). During the measurement, the FEOM is biased at its quadrature point to eliminate the second-order intermodulation distortion [48], and fed by a signal generator. To minimize the effect of third-order distortions, it is ensured that the modulator is not overdriven.…”

Section: Characterization For Time-stretch Applicationsmentioning

confidence: 99%

Differential and phase-diverse electrooptic modulators

Ordouie

Jiang

Zhou

et al. 2023

Preprint

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Bandwidth and noise are fundamental considerations in all communication and signal processing systems. The group-velocity dispersion of optical fibers creates nulls in their frequency response, limiting the bandwidth and hence the temporal response of communication and signal processing systems. Intensity noise is often the dominant optical noise source for semiconductor lasers in data communication. In this paper, we propose and demonstrate a new class of electrooptic modulators that is capable of mitigating both of these problems. Fabricated in thin-film lithium niobate, the modulator simultaneously achieves phase diversity and differential operations. The former compensates for the dispersion penalty of the fiber, and the latter overcomes the intensity noise and other common mode fluctuations. Applications of the so-called four-phase electrooptic modulator in time-stretch data acquisition and in optical communication are demonstrated.

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“…The latter is a single‐shot method and hence has a number of advantages. [ 85,86 ] Traditional single‐shot network analyzers are limited by the digitization bandwidth, thus necessitating either a parallel array of ADCs or temporal multiplexing of the input test signal to the device under test (DUT). Both of these traditional options are costly to scale to ultrahigh bandwidth.…”

Section: Time‐stretch Systemsmentioning

confidence: 99%

“…This allows for extremely wideband network measurements at high throughputs. [85,86] Since the optical portion of the integrated system is functionally identical to that for the TiSER system, we have the same stretch factor…”

Section: Single-shot Network Analyzer (Sina)mentioning

confidence: 99%

“…[76,77] Discrete timestretch light detection and ranging (lidar) has achieved record-speed 4D imaging performance. [78,79] Time stretch has also accelerated the development of wideband real-time oscilloscopes, [80][81][82] some of the popular variants of which include the single-shot network analyzer (SiNA) for measurement of complex response of wideband electronic devices, [83][84][85][86] and the time-stretch accelerated processor (TiSAP) for in-service video signal integrity analysis. [87,88] Furthermore, wideband real-time signal processing enabled by time-stretch has been beneficial in the design of radar.…”

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

A Unified Framework for Photonic Time‐Stretch Systems

Zhou

Chan

Jalali

2022

Laser & Photonics Reviews

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Photonic time stretch is the key enabling technology for a wide variety of instruments with unparalleled single-shot data acquisition performance at high throughput and continuous operation. These systems have established landmark performance in spectroscopy and imaging including flow-through microscopy, velocimetry, lidar, and other measurements. The evolution of the original time-stretch technique into such diverse instruments and applications over the last 25 years has created the need for a unified theoretical framework. This paper represents the first step toward a universal mathematical model for time-stretch instruments. It shows that the "stretch factor"-the fundamental performance metric-is governed by a single canonical equation in a wide range of seemingly diverse time-stretch instruments. The paper also provides new insight into the operation of time-stretch imaging and light scattering systems. The stretch factor is derived for time-stretch systems that operate in temporal, spatial, angular, and Doppler domains. The analysis and mathematical tools provided here can facilitate understanding and analysis of such systems and help future developments in this field.

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Tera-sample-per-second single-shot device analyzer

Cited by 23 publications

References 46 publications

Differential phase-diversity electrooptic modulator for cancellation of fiber dispersion and laser noise

Differential phase-diversity electrooptic modulator for cancellation of fiber dispersion and laser noise

Differential and phase-diverse electrooptic modulators

A Unified Framework for Photonic Time‐Stretch Systems

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