Principles of parametric temporal imaging. I. System configurations

Bennett, C.V.; Kolner, B.H.

doi:10.1109/3.831018

Cited by 141 publications

(104 citation statements)

References 27 publications

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“…In this section we consider a time lens based on the SFG process in a χ (2) nonlinear medium [12,13], where a strong classical pump wave with the carrier frequency ω p converts a signal wave with the carrier frequency ω s into an idler wave with the carrier frequency ω i = ω s + ω p . The pump is assumed to be undepleted and its complex slowly-varying amplitude is written as a p (t) = A p (t) exp[iφ p (t)], where A p (t) and φ p (t) are real functions of time, being the modulus and the phase of the pump wave respectively.…”

Section: Field Transformationmentioning

confidence: 99%

“…As has been mentioned in the Introduction, a temporal imaging system is aimed at stretching (or compressing) an optical waveform. We define this waveform, which we call also "object field", as temporal variation of light between the times t 0 and t 0 + T F , where t 0 is some starting time and T F is the temporal duration of the range to be imaged, the field of view (FOV) [12,13]. The temporal imaging system includes as a key element an SFG time lens, characterized by the focal GDD D f and the aperture T .…”

Section: General Description Of the Temporal Imaging Systemmentioning

confidence: 99%

“…The key element of a temporal imaging system is time lens, introducing a quadratic in time phase modulation into the signal field. Optical time lenses presently are based on electro-optical phase modulation [4,5,6,7,8], sum-frequency generation (SFG) [9,10,11,12,13,14,15], or four-wave mixing [16,17,18,19] and provide a temporal magnification up to 100 times.…”

Section: Introductionmentioning

confidence: 99%

See 2 more Smart Citations

Quantum temporal imaging: application of a time lens to quantum optics

Patera

Shi

Horoshko

et al. 2017

J. Opt.

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We consider application of a temporal imaging system, based on the sum-frequency generation, to a nonclassical, in particular, squeezed optical temporal waveform. We analyze the restrictions on the pump and the phase matching condition in the summing crystal, necessary for preserving the quantum features of the initial waveform. We show that modification of the notion of the field of view in the quantum case is necessary, and that the quantum field of view is much narrower than the classical one for the same temporal imaging system. These results are important for temporal stretching and compressing of squeezed fields, used in quantum-enhanced metrology and quantum communications.

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Section: Field Transformationmentioning

confidence: 99%

Section: General Description Of the Temporal Imaging Systemmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Quantum temporal imaging: application of a time lens to quantum optics

Patera

Shi

Horoshko

et al. 2017

J. Opt.

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“…A spatial lens imparts a quadratic phase in space and a time-lens produces a quadratic phase shift in time [8][9][10][11]. Time-lenses can compress [12] temporal signal by using mixing of a CW signal with a chirped pump wave which after propagating through a dispersive element creates an impulse.…”

Section: Introductionmentioning

confidence: 99%

Observations in Respect of Real Time Temporal Cloaking/Uncloaking at Microwave Frequencies

Zhou¹,

Fusco²,

Wang³

et al. 2016

PIER C

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Abstract-Based on space-time duality and through the use of temporal dispersive delay lines, this paper presents a demonstration of temporal cloaking/uncloaking at microwave frequencies. Numerical simulations of pulse generation, continuous wave signal recovery and data recovery are discussed in relation to the proposed system architecture. This paper also suggests a practical means for implementation of real time dual temporal cloaking/uncloaking. Compared to traditional signal processing systems, since the recovered data emerges with a reversed form in time domain before its final decoding, an extra operation named time-reversal is needed to obtain the correct data, which could help protect the significant signals better with the proposed temporal cloaking/uncloaking system. The proposed method and achieved results indicate potential application in secure communications and data multiplexing subject to channel bandwidth requirements.

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“…In recent years, people carried on the thorough research of time lens both at home and abroad. The theory of time lens continuously perfect [3][4][5][6], and it has broad application prospects such as the optical pulse compression and amplification [7], transformation of time domain, frequency domain [8], optical signal detection and process [9][10], etc..…”

Section: Introductionmentioning

confidence: 99%

The Application based on Fourier Transform in Time Lens

Liu

Guo

2016

MATEC Web of Conferences

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Abstract. Using the similarity between the transmission of narrow band light pulses in the dispersion media and the transmission of spatial beam in paraxial diffraction, build a time lens system similar to the space lens. Space lens can achieve compression and amplification of imaging function, and it has the nature of Fourier transform in light field. Then the time lens can also realize the compression and amplification of the light pulse and its Fourier transform. Using the function of Fourier transform in the time domain of time lens system, achieved the effect of eliminating noise and removing side lobe, improved the white noise which generally exist in the communication system and the side lobe effect which will produce in the relevant processes.

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Principles of parametric temporal imaging. I. System configurations

Cited by 141 publications

References 27 publications

Quantum temporal imaging: application of a time lens to quantum optics

Quantum temporal imaging: application of a time lens to quantum optics

Observations in Respect of Real Time Temporal Cloaking/Uncloaking at Microwave Frequencies

The Application based on Fourier Transform in Time Lens

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