Challenges
Datasets
Workspaces
Papers
Discussions
Leaderboard
Log inSign up
Challenges
Datasets
Workspaces
Papers
Discussions
Leaderboard
Blog
Job Board
Q3AS

© 2026 Aqora Quantum S.A.S.

TermsPrivacyLegal Notice

Optics Letters

Femtosecond accumulated photon echo in Er-doped fibers

Valéria Loureiro da Silva, Yaron R. Silberberg, J.P. Heritage, E. W. Chase, Mansoor A. Saifi, M. J. Andrejco

Published Sep 1, 1991• 33 citations
Publisher

Abstract

We report the observation of accumulated photon echo in Er-doped fibers. We also demonstrate time reversal and autoconvolution of femtosecond pulses, which suggest that Er-doped fibers are a promising medium for femtosecond time-domain optical signal processing.
DOI
10.1364/ol.16.001340

Related papers

Photon-echo in Er-doped fibers: a new approach to femtosecond time-domain optical signal processing

V.L. da Silva, Yaron R. Silberberg, J.P. Heritage +3 more

Recently, interest in photon echo has been revived because of its potential application in time-domain optical memories1. Several demonstrations have been reported in gases and also bulk organic and inorganic materials at cryogenic temperatures2-4. In this paper, we report the observation of accumulated photon echo in Er doped optical fibers and demonstrate that these fibers can be used to store information on the subpicosecond time scale.

Spectral Hole-Burning and Related Spectroscopies: Science and Applications•Jan 1, 1991•0 citations

Coherent Effects in Er-doped Fibers: Photon-Echo with Femtosecond Pulses

Yaron R. Silberberg, Valéria Loureiro da Silva, J.P. Heritage +3 more

Optical fibers have proven to be one of the most important nonlinear media, even though in most cases the nonlinearity exploited is the notoriously weak Kerr effect of the silica-based fiber. By using doped fibers, new, stronger nonlinearities are possible. These stronger effects could allow for new phenomena and applications. Coherent effects, in particular, should be important when pulses shorter or comparable to the dephasing time of the impurity ions propagate in the fiber. Here we report, for the first time, the observation of accumulated photon-echo and free induction decay during the propagation of femtosecond pulses in Er doped fibers at 4.2°K.

Nonlinear Guided Waves and Their Applications•Jan 1, 1991•0 citations

Photon-Echoes in a Pumped Er-Doped Fiber

Valéria Loureiro da Silva, Yaron R. Silberberg

Recently we reported the first photon echo experiments in Er-doped fibers, and described their application to ultrafast time domain signal processing [1]. Our previous results were obtained with absorbing Er-doped fibers at 4°K, and our signals at 1.53µm were attenuated by the fiber. In this paper we report photon echo experiments with Er-doped amplifiers. We expect the photon echo process in amplifiers to yield strong echoes, perhaps stronger then the input signal. This could be important for signal processing applications. To our knowledge this is the first demonstration of photon echo in any inverted system.

Integrated Photonics Research•Jan 1, 1992•0 citations

Accumulated photon echoes on doped fibers

Yaron R. Silberberg, Valéria Loureiro da Silva, J.P. Heritage +2 more

Accumulated photon echo experiments in erbium-doped optical fibers are reviewed. The experiments demonstrate the advantage of the single-mode optical fibers for investigations of resonant coherent effects. A theoretical analysis of the accumulated echo process which is particularly suitable for the highly saturated, highly absorptive experiments in fibers is presented. The capability of ultrafast time-domain signal processing in the doped fibers is shown. The inhomogeneous width of the 1.53- mu m transition investigated can support pulses at short as 0.5 ps. With an estimated approximately 1-ns homogeneous dephasing time, the fibers can handle (store or process) about 1000 b at rates of 1 Tb/s.>

IEEE Journal of Quantum Electronics•Jan 1, 1992•16 citations

Photon echoes in an optical amplifier

Valéria Loureiro da Silva, Yaron R. Silberberg

Accumulated photon-echo experiments in pumped Er-doped fibers are reported. The echoes were observed to decrease and disappear as the fiber was pumped to transparency, and then to increase again as the system was inverted. Coherent saturation between the pulses unbalanced the initially identical excitation pulses. We describe a simple frequency domain model that explains all the observed features.

Physical Review Letters•Feb 22, 1993•12 citations

Femtosecond time-resolved accumulated photon-echo in Er-doped fibers

Valéria Loureiro da Silva, Yaron R. Silberberg, E. W. Chase +2 more

Quantum Electronics and Laser Science Conference•May 12, 1991•0 citations
Optical fibers have proven to be one of the most important nonlinear media, even though in most cases the nonlinearity exploited is the notoriously weak Kerr effect of the silica-based fiber. By using doped fibers, new, stronger nonlinearities are possible. These stronger effects could allow for new phenomena and applications. Coherent effects, in particular, should be important when pulses shorter or comparable to the dephasing time of the impurity ions propagate in the fiber. Here we report, for the first time, the observation of accumulated photon-echo and free induction decay during the propagation of femtosecond pulses in Er doped fibers at 4.2°K.
Recently we reported the first photon echo experiments in Er-doped fibers, and described their application to ultrafast time domain signal processing [1]. Our previous results were obtained with absorbing Er-doped fibers at 4°K, and our signals at 1.53µm were attenuated by the fiber. In this paper we report photon echo experiments with Er-doped amplifiers. We expect the photon echo process in amplifiers to yield strong echoes, perhaps stronger then the input signal. This could be important for signal processing applications. To our knowledge this is the first demonstration of photon echo in any inverted system.
Accumulated photon echo experiments in erbium-doped optical fibers are reviewed. The experiments demonstrate the advantage of the single-mode optical fibers for investigations of resonant coherent effects. A theoretical analysis of the accumulated echo process which is particularly suitable for the highly saturated, highly absorptive experiments in fibers is presented. The capability of ultrafast time-domain signal processing in the doped fibers is shown. The inhomogeneous width of the 1.53- mu m transition investigated can support pulses at short as 0.5 ps. With an estimated approximately 1-ns homogeneous dephasing time, the fibers can handle (store or process) about 1000 b at rates of 1 Tb/s.>