2006
DOI: 10.1364/ol.31.003264
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Wideband and high-resolution coherent optical transients with a frequency-agile laser oscillator

Abstract: We report what is believed to be the first experimental demonstration of a wideband spectral coherent process driven by a frequency-agile laser in a rare-earth-ion-doped crystal. The very demanding chirp-transform algorithm is studied in detail and is applied to radio-frequency spectral analysis. A time-bandwidth product of 24,000 is demonstrated.

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Cited by 13 publications
(20 citation statements)
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“…It is not a limitation for the coherent transient phenomena. It has to be compared to the narrow homogeneous width (3-4 orders of magnitude narrower) to yield a high number of spectral channels [4,5]. This is alternatively interpreted as a high multi-mode capacity [6], crucial for quantum repeaters application.…”
Section: Introductionmentioning
confidence: 99%
“…It is not a limitation for the coherent transient phenomena. It has to be compared to the narrow homogeneous width (3-4 orders of magnitude narrower) to yield a high number of spectral channels [4,5]. This is alternatively interpreted as a high multi-mode capacity [6], crucial for quantum repeaters application.…”
Section: Introductionmentioning
confidence: 99%
“…The first two pulses E 1 (t) and E 2 (t) of a stimulated photon echo sequence burn a sinusoidal spectral grating in the absorption profile, with a spacing equal to the inverse time separation of the two pulses (figure 5). One can extend this observation to a pair of chirped pulses with opposite chirp rates −r P and r P : each homogeneous frequency class of atoms senses a pair of pulses with a frequency-specific time separation [27,28]. This way, the inhomogeneously broadened profile is shaped into a quasi-sinusoid with a linearly varying period, hence the dispersive filter with µ = 2/r P ( figure 6).…”
Section: Preparation Of a Dispersive Filtermentioning
confidence: 94%
“…Dispersive filtering near atomic resonance has already been used in combination with a time lens for real-time spectral analysis [26][27][28] and analogue arbitrary waveform generation [29,30] in the prospect of RADAR applications.…”
Section: Linear Dispersive Filtering Near Atomic Resonancementioning
confidence: 99%
“…The ratio of the inhomogeneous bandwidth to the homogeneous linewidth yields the number of spectral channels or the time-bandwidth product of the spectrum analyzer. Ratios as high as 10 8 have been speculated [13] and a huge channel capacity has been demonstrated [7].…”
Section: Principle Of Operation Of S2samentioning
confidence: 99%
“…This approach has been shown to provide Fourier transform limited access to the spectrum and a record time bandwidth product of 24,000 over a 1. 6 GHz bandwidth has been demonstrated [7]. A single channel S2 spectrum analyzer (S2SA) that uses a very simple topology for spectral processing utilizing a single spot in an optical crystal, and is thus amenable to spatially multiplexed array applications has been proposed and demonstrated [8][9][10][11][12].…”
Section: Introductionmentioning
confidence: 99%