Dispersion compensation for ultrashort pulse transmission using two-mode fiber equalizers

Chang, C.-C.; Weiner, Andrew M.

doi:10.1109/68.334850

Cited by 9 publications

(5 citation statements)

References 8 publications

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“…For even shorter pulses, second-order dispersion compensation alone is not sufficient because wavelength components away from the center of the spectrum still experience dispersion because of the uncompensated dispersion slope. 6,7 Simultaneous second-and third-order dispersion compensation for femtosecond pulses was studied by use of a bulk-optic diffraction grating pair. 6 In our research we are interested in extending the use of dispersion-compensating fibers 8,9 (DCF's), which is an all-f iber technique, to simultaneous second-and thirdorder dispersion compensation for femtosecond pulse experiments.…”

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confidence: 99%

“…Simultaneous cancellation of secondand third-order dispersion can potentially permit propagation distances over 100 km for subpicosecond pulses, as we showed numerically in the case of a two-mode fiber dispersion compensator. 7 As illustrated in Fig. 1, the basic idea of our experiments is to propagate low-power femtosecond pulses through a concatenated SMF -DCF link and then measure the resulting output pulses.…”

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Broadband fiber dispersion compensation for sub-100-fs pulses with a compression ratio of 300

Chang

Weiner²,

Vengsarkar³

et al. 1996

Opt. Lett.

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We report what is, to our knowledge, the first experimental demonstration of nearly dispersion-free transmission of sub-100-fs pulses over several tens of meters of fiber. 62-fs pulses are broadened initially and recompressed by a ratio of 300 over a 42-m concatenated fiber link consisting of standard single-mode and dispersioncompensating fibers. This dispersion-compensated fiber link is estimated to have a third-order dispersion ~6 times lower than that of dispersion-shifted fiber.

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confidence: 99%

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confidence: 99%

Broadband fiber dispersion compensation for sub-100-fs pulses with a compression ratio of 300

Chang

Weiner²,

Vengsarkar³

et al. 1996

Opt. Lett.

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“…They are subsequently recompressed to their original pulse duration due to the dispersion and dispersion slope balance between SSMF and DCF. Potentially, the dispersion limited propagation distance for subpicosecond pulses in the dispersion compensated link could significantly exceed that possible with soliton propagation which is limited by the soliton self-frequency shift [19]. As the input energy for fs-pulse transmission is increased beyond several tens of picojoules, the fiber nonlinear effect, especially SPM, must be included to describe the pulse dynamics in the transmission link.…”

Section: Theoretical Modelmentioning

confidence: 99%

“…We have experimentally and numerically demonstrated the SPM effects on a 400 fs pulse transmission over the dispersion compensated link using DCF. The isolated single pulse case is relevant to either ultrashort pulse CDMA schemes [16] or to fiber stretcher/compressor applications like chirped pulse amplification [19]. For CDMA schemes the previous analysis is an overly conservative estimate, since a coded input pulse will have substantially lower intensity for fixed energy than that of an uncoded input pulse considered above.…”

Section: Numerical Analysis Of Tdm Pseudorandom Data Transmissionmentioning

confidence: 99%

Effects of self-phase modulation on sub-500 fs pulse transmission over dispersion compensated fiber links

Shen

Chang²,

Sardesai

et al. 1999

J. Lightwave Technol.

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The effects of nonlinearity on sub-500 fs pulse transmission over dispersion compensated fiber links using dispersion compensating fiber technique are investigated numerically and experimentally. The pulse broadening and recompression ratio of the 2.5-km transmission link is over 300. The postcompensated and precompensated links are compared when the input pulse energy ranges from 15 to 150 pJ. At high powers, self-phase modulation (SPM) degrades the pulse recompression process and provides an upper bound on the transmitted pulse energy. The SPM effect is stronger in the postcompensated link than in the precompensated link. A dramatic spectral narrowing effect was observed in the postcompensated link. Pulse energies up to tens of pJ, consistent with high quality communication, should be possible for a sub-500 fs pulse in such dispersion compensated links.

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“…In addition, a number of fiber experiments exploring linear dispersion compensation with ultrashort (femtosecond) pulses are now beginning to appear. For pulses in the femtosecond regime, simultaneous compensation of both second-and third-order dispersion (or dispersion and dispersion slope) is necessary [7], [16]. One recent system experiment used linear propagation with dispersion and partial-dispersion slope compensation for transmission of 980-fs pulses over 40 km of fiber to demonstrate 400-Gb/s TDM transmission [17].…”

Section: Introductionmentioning

confidence: 99%

Fiber transmission for sub-500-fs pulses using a dispersion-compensating fiber

Chang

Weiner

1997

IEEE J. Quantum Electron.

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We report transmission of 60-fs and 245-fs pulses, respectively, over 42-m and 2.5-km fiber links which consist of standard single-mode fibers (SMF) concatenated with dispersion-compensating fibers (DCF). The experiments using very short pulses (60 fs) over a short fiber length (42 m) demonstrate the ability to achieve simultaneous dispersion and dispersion slope compensation using this technique. Femtosecond spectral interferometry measurements of this 42-m link show that its residual dispersion slope is approximately six times lower than that of the dispersion-shifted fiber. Finally, to demonstrate that the dispersion-limited propagation distance is proportional to the cube of the pulsewidth, we transmit 245-fs pulses over a 2.5-km SMF-DCF link and achieve comparable pulse restoration as with the shorter fiber experiments.Index Terms-Dispersion compensation, dispersion measurement, spectral interferometry.

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Dispersion compensation for ultrashort pulse transmission using two-mode fiber equalizers

Cited by 9 publications

References 8 publications

Broadband fiber dispersion compensation for sub-100-fs pulses with a compression ratio of 300

Broadband fiber dispersion compensation for sub-100-fs pulses with a compression ratio of 300

Effects of self-phase modulation on sub-500 fs pulse transmission over dispersion compensated fiber links

Fiber transmission for sub-500-fs pulses using a dispersion-compensating fiber

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