Search Results - "Watts, R T"

High performance mode locking characteristics of single section quantum dash lasers by Rosales, Ricardo, Murdoch, S G, Watts, R T, Merghem, K, Martinez, Anthony, Lelarge, Francois, Accard, Alain, Barry, L P, Ramdane, Abderrahim

“…Mode locking features of single section quantum dash based lasers are investigated. Particular interest is given to the static spectral phase profile…”
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Spectral amplitude and phase measurement of a 40 GHz free-running quantum-dash modelocked laser diode by Murdoch, S G, Watts, R T, Xu, Y Q, Maldonado-Basilio, R, Parra-Cetina, J, Latkowski, S, Landais, P, Barry, L P

“…We present a linear self-referenced measurement of the spectral amplitude and phase of a free-running quantum-dash modelocked laser diode. The technique is…”
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Optimization of optical data transmitters for 40-Gb/s lightwave systems using frequency resolved optical gating by Barry, L.P., Del burgo, S., Thomsen, B., Watts, R.T., Reid, D.A., Harvey, J.

“…The measurement technique of frequency resolved optical gating has been used to optimize the phase of a 40-GHz train of optical pulses generated using a…”
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Improved Amplitude and Phase Accuracy of a Fourier-Domain Optical Processor With Feedback by Murdoch, S. G., Watts, R. T., Provo, R. J., Barry, L. P.

“…We demonstrate that the amplitude and phase accuracy of a Fourier-domain optical processor (FDOP) can be improved by an iterative feedback technique. The…”
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Comparison between nonlinear and linear spectrographic techniques for the complete characterization of high bit-rate pulses used in optical communications by Thomsen, B.C., Roelens, M.A.F., Watts, R.T., Richardson, D.J.

“…Two spectrographic techniques for the complete characterization (amplitude and phase) of optical pulses with durations commensurate with high bit-rate…”
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Characterization of 40-Gbit/s pulses generated using a lithium niobate modulator at 1550 nm using frequency resolved optical gating by Thomsen, B.C., Reid, D.A., Watts, R.T., Barry, L.P., Harvey, J.D.

“…The characteristics of 40-Gbit/s pulses generated by exploiting the nonlinear characteristics of a Mach-Zender Lithium Niobate modulator are presented. A high…”
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Multi-terabit/s transmission using chip-scale frequency comb sources by Koos, C., Kippenberg, T. J., Barry, L. P., Dalton, L., Ramdane, A., Lelarge, F., Freude, W., Kemal, J. N., Marin, P., Wolf, S., Trocha, P., Pfeifle, J., Weimann, C., Lauermann, M., Herr, T., Brasch, V., Watts, R. T., Elder, D., Martinez, A., Panapakkam, V., Chimot, N.

“…Chip-scale frequency comb sources are likely to become key elements of future terabit/s optical transceivers. We investigate and demonstrate the viability of…”
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Nonlinearities in silicon optical fibers by Mehta, P, Healy, N, Slavik, R, Watts, R T, Sparks, J R, Day, T D, Sazio, P J A, Badding, J V, Peacock, A C

“…The nonlinear propagation characteristics in a hydrogenated amorphous silicon core optical fiber are investigated to demonstrate ultra-fast all-optical…”
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A technique to measure the correlation of optical frequencies using four-wave mixing by Anthur, A. P., Watts, R. T., Huynh, T. N., Venkitesh, D., Barry, L. P.

“…We propose a novel technique to measure the correlation between two optical frequencies using a FWM scheme. To verify, we measure the evolution of…”
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QDash semiconductor mode-locked lasers as compact subchannel comb for optical OFDM superchannel systems by Watts, R. T., Rosales, R., Murdoch, S. G., Lelarge, F., Ramdane, A., Barry, L. P.

“…Device characterizations of QDash semiconductor lasers as a subchannel comb generator are presented, including measurements of electric field, optical…”
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Flexible terabit/s Nyquist-WDM superchannels with net SE > 7bit/s/Hz using a gain-switched comb source by Vujicic, V., Pfeifle, J., Watts, R. T., Schindler, P. C., Weimann, C., Zhou, R., Freude, W., Koos, C., Barry, L. P.

“…We demonstrate two 1Tbit/s superchannel architectures using a compact, FSR-tunable gain-switched comb source. SSMF transmission of 18GBaud Nyquist-WDM shaped…”
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Quantum dash mode locked lasers as optical comb sources for OFDM superchannels by Rosales, R., Watts, R. T., Merghem, K., Calo, C., Martinez, A., Accard, A., Lelarge, F., Barry, L. P., Ramdane, A

“…Phase locked frequency combs spanning > 1.5 THz have been generated using passively mode locked quantum dash based lasers emitting at 1.55 µm. These combs are…”
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Relation between signal detectability theory and the traditional procedures for measuring sensory thresholds: Estimating d' from results given by the method of constant simuli by Treisman, Michel, Watts, T. R

“…The theory of signal detectability assumes that the central effect of a stimulus varies because of physical and neural noise; consequently, the detection of a…”
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Optimization of optical data 40-Gb/s lightwave transmitters for systems using frequency resolved optical gating by Barry, L P, Del Burgo, S, Thomsen, B, Watts, R T, Reid, D A, Harvey, J

“…The measurement technique of frequency resolved optical gating has been used to optimize the phase of a 40-GHz train of optical pulses generated using a…”
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Va Transfers CS to Supply Service, Returns Most Nurses to Patient Care by Humphries, Eldon, Watts, Reginald T.

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Optimization of 40 Gbit/s transmission systems using frequency resolved optical gating characterization techniques by Barry, L.P., Anandarajah, P., Del Burgo, S., Watt, R.T., Reid, D.A., Harvey, J.

“…To achieve multiterabit/s capacities in long-haul transport networks, it is anticipated that wavelength division multiplexed (WDM) systems will be upgraded to…”
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Wavelength conversion of ps-duration pulses induced in mode-locked semiconductor lasers via strong optical injection by Watts, R. T., Rosales, R., Murdoch, S. G., Lelarge, F., Ramdane, A., Barry, L. P.

“…Wavelength conversion via four-wave mixing (FWM) schemes of high-bit rate data formats are conventionally achieved using a strong pump source and a secondary…”
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Silicon-organic hybrid (SOH) devices and their use in comb-based communication systems by Koos, C., Freude, W., Dalton, L., Kippenberg, T. J., Barry, L. P., Ramdane, A., Lelarge, F., Wolf, S., Zwickel, H., Lauermann, M., Weimann, C., Hartmann, W., Kemal, J. N., Marin, P., Trocha, P., Pfeifle, J., Herr, T., Brasch, V., Watts, R. T., Elder, D., Martinez, A., Panapakkam, V., Chimot, N.

“…Advanced wavelength-division multiplexing (WDM) requires both efficient multi-wavelength light sources to generate optical carriers and highly scalable…”
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Characterization of Optical Frequency Combs for OFDM based optical transmission systems by Watts, R. T., Rosales, R., Browning, C., Martin, E., Merghem, K., Calo, C., Martinez, A., Ramdane, A., Barry, L. P.

“…Optical Frequency Combs are becoming increasingly important for the development of future photonics systems. In this work we present the detailed…”
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Detailed experimental phase noise characterization of Y-branch lasers for use in coherent communication systems by Watts, R. T., Kai Shi, Yonglin Yu, Barry, L. P.

“…We demonstrate for the first time a detailed phase noise characterization of Y-branch lasers. BER tests of 10.7GBaud DQPSK revealed the effect of phase noise…”
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