Research Topics
| Kazuro KikuchiSummaryAffiliation: University of Tokyo Country: Japan Publications
| Collaborators
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Detail Information
Publications
Characterization of semiconductor-laser phase noise and estimation of bit-error rate performance with low-speed offline digital coherent receiversKazuro Kikuchi
Department of Electrical Engineering and Information Systems, The University of Tokyo7 3 1 Hongo, Bunkyo ku, Tokyo 113 8656, Japan
Opt Express 20:5291-302. 2012..The BER degradation due to the phase noise is well explained by the result of the phase-noise measurements...
Highly-sensitive coherent optical detection of M-ary frequency-shift keying signalKazuro Kikuchi
Department of Electrical Engineering and Information Systems, The University of Tokyo, 7 3 1 Hongo, Tokyo 113 8656, Japan
Opt Express 19:B32-9. 2011..5 photons per bit at the bit-error rate of 10(-3). The experimental result is in good agreement with simulations...
Analyses of wavelength- and polarization-division multiplexed transmission characteristics of optical quadrature-amplitude-modulation signalsKazuro Kikuchi
Department of Electrical Engineering and Information Systems, The University of Tokyo, Tokyo, Japan
Opt Express 19:17985-95. 2011..From such formula, we derive simple laws that determine the maximum transmission distance and the optimum power as functions of the QAM order and the symbol rate. These laws can well explain the simulation results...
Performance analyses of polarization demultiplexing based on constant-modulus algorithm in digital coherent optical receiversKazuro Kikuchi
Department of Electrical Engineering and Information Systems, The University of Tokyo, 7 3 1 Hongo, Tokyo 113 8656, Japan
Opt Express 19:9868-80. 2011..The method of improving its performance is also demonstrated...
Clock recovering characteristics of adaptive finite-impulse-response filters in digital coherent optical receiversKazuro Kikuchi
Department of Electrical Engineering and Information Systems, The University of Tokyo, 7 3 1 Hongo, Bunkyo ku, Tokyo 113 8656, Japan
Opt Express 19:5611-9. 2011....
Distribution of polarization-entangled photonpairs produced via spontaneous parametric down-conversion within a local-area fiber network: theoretical model and experimentHan Chuen Lim
Graduate School of Engineering, The University of Tokyo, Tokyo, Japan
Opt Express 16:14512-23. 2008..Experimentally observed visibilities and entanglement fidelities are in good agreement with theoretically predicted values...
Equalization of nonlinear transmission impairments by maximum-likelihood-sequence estimation in digital coherent receiversMd Khairuzzaman
Department of Electrical Engineering and Information Systems, University of Tokyo, Tokyo, Japan
Opt Express 18:4776-82. 2010..The bit-error rate performance shows that the MLSE equalizer outperforms the conventional adaptive FIR filter, especially when nonlinear impairments are predominant...
Electronic post-compensation for nonlinear phase fluctuations in a 1000-km 20-Gbit/s optical quadrature phase-shift keying transmission system using the digital coherent receiverKazuro Kikuchi
Department of Frontier Informatics, University of Tokyo, 5 1 5 Kashiwanoha, Kashiwa, Chiba 277 8561, Japan
Opt Express 16:889-96. 2008....
Multi-impairment monitoring from adaptive finite-impulse-response filters in a digital coherent receiverMd Saifuddin Faruk
University of Tokyo, Department of Electrical Engineering and Information Systems, Tokyo, Japan
Opt Express 18:26929-36. 2010..We validate our multi-impairment monitoring algorithm by dual-polarization quadrature phase-shift keying (QPSK) transmission experiments...
Adaptive frequency-domain equalization in digital coherent optical receiversMd Saifuddin Faruk
Department of Electrical Engineering and Information Systems, The University of Tokyo, 7 3 1 Hongo, Bunkyo ku, Tokyo 113 8656, Japan
Opt Express 19:12789-98. 2011..The performance of the proposed equalization scheme is verified by 40-Gbits/s dual-polarization quadrature phase-shift keying (QPSK) transmission experiments...
Stable source of high quality telecom-band polarization-entangled photon-pairs based on a single, pulse-pumped, short PPLN waveguideHan Chuen Lim
Graduate School of Engineering, The University of Tokyo, 5 1 5 Kashiwanoha, Kashiwa, Chiba 277 8561, Japan
Opt Express 16:12460-8. 2008..96 at the low-rate-regime. At higher rates, entanglement quality degrades due to emission of multiple-pairs. Using a new model, we have confirmed that the observed degradation is largely due to double- and triple-pair emissions...
