Photo of Knud J. Larsen
  • Ørsteds Plads, 343, 112

    2800 Kgs. Lyngby

    Denmark

1973 …2017

Research output per year

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Research Output

2017

A configurable FPGA FEC unit for Tb/s optical communication

Andersen, J. D., Larsen, K. J., Bering Bøgh, C., Forchhammer, S., Da Ros, F., Dalgaard, K. & Iqbal, S., 2017, Proceedings of 2017 IEEE International Conference on Communications. IEEE, p. 1-6 6 p. (I E E E International Conference on Communications).

Research output: Chapter in Book/Report/Conference proceedingArticle in proceedingsResearchpeer-review

Open Access
File
383 Downloads (Pure)

Low-complexity BCH codes with optimized interleavers for DQPSK systems with laser phase noise

Leong, M. Y., Larsen, K. J., Jacobsen, G. & Zibar, D., 2017, In : Photonic Network Communications. 33, 3, p. 328-333 6 p.

Research output: Contribution to journalJournal articleResearchpeer-review

Open Access
File
243 Downloads (Pure)

Temporal probabilistic shaping for mitigation of nonlinearities in optical fiber systems

Yankov, M. P., Larsen, K. J. & Forchhammer, S., 2017, In : Journal of Lightwave Technology. 35, 10, p. 1803-10

Research output: Contribution to journalJournal articleResearchpeer-review

Open Access
File
525 Downloads (Pure)
2016

Constellation Shaping for WDM systems using 256QAM/1024QAM with Probabilistic Optimization

Yankov, M. P., Da Ros, F., Porto da Silva, E., Forchhammer, S., Larsen, K. J., Oxenløwe, L. K., Galili, M. & Zibar, D., 2016, In : Journal of Lightwave Technology. 34, 22, p. 5146 - 5156

Research output: Contribution to journalJournal articleResearchpeer-review

Open Access
File
1171 Downloads (Pure)
2015

Approximating the constellation constrained capacity of the MIMO channel with discrete input

Yankov, M. P., Forchhammer, S., Larsen, K. J. & Christensen, L. P. B., 2015, Proceedings of IEEE International Conference on Communicaitons. IEEE, p. 4018-4023

Research output: Chapter in Book/Report/Conference proceedingArticle in proceedingsResearchpeer-review

Open Access
File
441 Downloads (Pure)

Impairment mitigation in superchannels with digital backpropagation and MLSD

Porto da Silva, E., Larsen, K. J. & Zibar, D., 2015, In : Optics Express. 23, 23, p. 29493-29501

Research output: Contribution to journalJournal articleResearchpeer-review

Open Access
File
326 Downloads (Pure)

Mitigation of Linear and Nonlinear Impairments in Spectrally Efficient Superchannels

Porto da Silva, E., Larsen, K. J. & Zibar, D., 2015, Proceedings of Signal Processing in Photonic Communications 2015. Optical Society of America (OSA), 3 p.

Research output: Chapter in Book/Report/Conference proceedingArticle in proceedingsResearchpeer-review

Nonlinear Compensation with Modified Adaptive Digital Backpropagation in Flexigrid Networks

Porto da Silva, E., Asif, R., Larsen, K. J. & Zibar, D., 2015, Proceedings of 2015 Conference on Lasers and Electro-Optics (CLEO) . IEEE, 2 p. SM2M.5

Research output: Chapter in Book/Report/Conference proceedingArticle in proceedingsResearchpeer-review

Reconfigurable Forward Error Correction Decoder for Beyond 100 Gbps High Speed Optical Links

Li, B., Larsen, K. J., Zibar, D. & Tafur Monroy, I., 2015, In : IEEE Communications Letters. 19, 2, p. 119-122

Research output: Contribution to journalJournal articleResearchpeer-review

2014

Constellation Shaping for Fiber-optic Channels with QAM and High Spectral Efficiency

Yankov, M. P., Zibar, D., Larsen, K. J., Christensen, L. P. B. & Forchhammer, S., 2014, In : IEEE photonic Technology Letters. 26, 23, p. 2407-2410

Research output: Contribution to journalJournal articleResearchpeer-review

Open Access
File
790 Downloads (Pure)

Dimensioning BCH codes for coherent DQPSK systems with laser phase noise and cycle slips

Leong, M. Y., Larsen, K. J., Jacobsen, G., Popov, S., Zibar, D. & Sergeyev, S., 2014, In : Journal of Lightwave Technology. 32, 21, p. 3446-3450 5 p.

Research output: Contribution to journalJournal articleResearchpeer-review

Factorization properties of the optimal signaling distribution of multi-dimensional QAM constellations

Yankov, M. P., Forchhammer, S., Larsen, K. J. & Christensen, L. P. B., 2014, Proceedings of ISCCSP 2014. IEEE, p. 384-387

Research output: Chapter in Book/Report/Conference proceedingArticle in proceedingsResearchpeer-review

Open Access
File
168 Downloads (Pure)

Improved Energy Efficiency for Optical Transport Networks by Elastic Forward Error Correction

Rasmussen, A., Yankov, M. P., Berger, M. S., Larsen, K. J. & Ruepp, S. R., 2014, In : Journal of Optical Communications and Networking. 6, 4, p. 397-407

Research output: Contribution to journalJournal articleResearchpeer-review

Low complexity source and channel coding for mm-wave hybrid fiber-wireless links

Lebedev, A., Vegas Olmos, J. J., Pang, X., Tafur Monroy, I., Larsen, K. J. & Forchhammer, S., 2014, In : Optics Communications. 318, p. 142-146

Research output: Contribution to journalJournal articleResearchpeer-review

Novel BCH Code Design for Mitigation of Phase Noise Induced Cycle Slips in DQPSK Systems

Leong, M. Y., Larsen, K. J., Jacobsen, G., Popov, S., Zibar, D. & Sergeyev, S., 2014, Proceedings of 2014 Conference on Lasers and Electro-Optics (CLEO). IEEE, 2 p. STu3J.6

Research output: Chapter in Book/Report/Conference proceedingArticle in proceedingsResearchpeer-review

Rate-adaptive Constellation Shaping for Near-capacity Achieving Turbo Coded BICM

Yankov, M. P., Forchhammer, S., Larsen, K. J. & Christensen, L. P. B., 2014, Proceedings of IEEE ICC 2014. IEEE, p. 2112-2117

Research output: Chapter in Book/Report/Conference proceedingArticle in proceedingsResearchpeer-review

Open Access
File
269 Downloads (Pure)

Turbo Equalization for Digital Coherent Receivers

Arlunno, V., Caballero Jambrina, A., Borkowski, R., Zibar, D., Larsen, K. J. & Tafur Monroy, I., 2014, In : Journal of Lightwave Technology. 32, 2, p. 275-284

Research output: Contribution to journalJournal articleResearchpeer-review

Turbo Equalization Techniques Toward Robust PDM 16-QAM Optical Fiber Transmission

Arlunno, V., Caballero Jambrina, A., Borkowski, R., Saldaña Cercos, S., Zibar, D., Larsen, K. J. & Tafur Monroy, I., 2014, In : Journal of Optical Communications and Networking. 6, 2, p. 204-214

Research output: Contribution to journalJournal articleResearchpeer-review

Open Access
File
455 Downloads (Pure)
2013

1.28 Tbaud Nyquist Signal Transmission using Time-Domain Optical Fourier Transformation based Receiver

Hu, H., Kong, D., Palushani, E., Andersen, J. D., Rasmussen, A., Sørensen, B. M., Galili, M., Mulvad, H. C. H., Larsen, K. J., Forchhammer, S., Jeppesen, P. & Oxenløwe, L. K., 2013, CLEO Technical Digest. Optical Society of America, p. CTh5D.5

Research output: Chapter in Book/Report/Conference proceedingArticle in proceedingsResearchpeer-review

Adaptive Forward Error Correction for Energy Efficient Optical Transport Networks

Rasmussen, A., Ruepp, S. R., Berger, M. S. & Larsen, K. J., 2013, 2013 IEEE 14th International Conference on High Performance Switching and Routing (HPSR). IEEE, p. 215-216

Research output: Chapter in Book/Report/Conference proceedingArticle in proceedingsResearchpeer-review

Application of Beyond Bound Decoding for High Speed Optical Communications

Li, B., Larsen, K. J., Vegas Olmos, J. J., Zibar, D. & Tafur Monroy, I., 2013, ACP/IPOC 2013. Optical Society of America, 3 p. AF4C.6

Research output: Chapter in Book/Report/Conference proceedingArticle in proceedingsResearchpeer-review

Open Access
File
389 Downloads (Pure)

Counteracting 16-QAM Optical Fiber Transmission Impairments With Iterative Turbo Equalization

Arlunno, V., Caballero Jambrina, A., Borkowski, R., Zibar, D., Larsen, K. J. & Tafur Monroy, I., 2013, In : I E E E Photonics Technology Letters. 25, 21, p. 2097-2100

Research output: Contribution to journalJournal articleResearchpeer-review

Forward error correction supported 150 Gbit/s error-free wavelength conversion based on cross phase modulation in silicon

Hu, H., Andersen, J. D., Rasmussen, A., Sørensen, B. M., Dalgaard, K., Galili, M., Pu, M., Yvind, K., Larsen, K. J., Forchhammer, S. & Oxenløwe, L. K., 2013, In : Optics Express. 21, 3, p. 3152-3160

Research output: Contribution to journalJournal articleResearchpeer-review

Open Access
File
441 Downloads (Pure)

High-speed 1550 nm VCSEL data transmission link employing 25 Gbaud 4-PAM modulation and Hard Decision Forward Error Correction

Rodes Lopez, R., Mueller, M., Li, B., Estaran Tolosa, J. M., Jensen, J. B., Grundl, T., Ortsiefer, M., Neumeyr, C., Rosskopf, J., Larsen, K. J., Amann, M. & Tafur Monroy, I., 2013, In : Journal of Lightwave Technology. 31, 4, p. 689-695

Research output: Contribution to journalJournal articleResearchpeer-review

1 Downloads (Pure)

Rate-adaptive BCH codes for distributed source coding

Salmistraro, M., Larsen, K. J. & Forchhammer, S., 2013, In : Eurasip Journal on Advances in Signal Processing. 2013, 14 p., 166.

Research output: Contribution to journalJournal articleResearchpeer-review

Open Access
File
426 Downloads (Pure)
2012

100 Gb/s single VCSEL data transmission link

Rodes Lopez, R., Estaran Tolosa, J. M., Li, B., Muller, M., Jensen, J. B., Gruendl, T., Ortsiefer, M., Neumeyr, C., Rosskopf, J., Larsen, K. J., Amann, M-C. & Tafur Monroy, I., 2012, OFC/NFOEC Postdeadline Papers. Optical Society of America, p. PDP5D.I0 3 p.

Research output: Chapter in Book/Report/Conference proceedingArticle in proceedingsResearchpeer-review

Open Access
File
1499 Downloads (Pure)

Nonlinear impairment compensation using expectation maximization for dispersion managed and unmanaged PDM 16-QAM transmission

Zibar, D., Winther, O., Franceschi, N., Borkowski, R., Caballero Jambrina, A., Arlunno, V., Schmidt, M. N., Guerrero Gonzalez, N., Mao, B., Ye, Y., Larsen, K. J. & Tafur Monroy, I., 2012, In : Optics Express. 20, 26, p. B181-B196

Research output: Contribution to journalJournal articleResearchpeer-review

Open Access
File
632 Downloads (Pure)

Nonlinear Impairment Compensation Using Expectation Maximization for PDM 16-QAM Systems

Zibar, D., Winther, O., Franceschi, N., Borkowski, R., Caballero Jambrina, A., Arlunno, V., Schmidt, M. N., Gonzales, N. G., Mao, B., Larsen, K. J. & Tafur Monroy, I., 2012, ECOC Technical Digest. Optical Society of America, p. Th.1.D.2 3 p.

Research output: Chapter in Book/Report/Conference proceedingArticle in proceedingsResearchpeer-review

Open Access
File
511 Downloads (Pure)

Rate-adaptive BCH coding for Slepian-Wolf coding of highly correlated sources

Forchhammer, S., Salmistraro, M., Larsen, K. J., Huang, X. & Luong, H. V., 2012, 2012 Data Compression Conference. IEEE, p. 237-246

Research output: Chapter in Book/Report/Conference proceedingArticle in proceedingsResearchpeer-review

Theoretical Framework for Evaluating Partial Checksum Protection in Wireless Video Streaming

Korhonen, J., Forchhammer, S. & Larsen, K. J., 2012, 2012 IEEE International Conference on Multimedia and Expo Workshops (ICMEW). IEEE, p. 647-652

Research output: Chapter in Book/Report/Conference proceedingArticle in proceedingsResearchpeer-review

2011

Digital non-linear equalization for flexible capacity ultradense WDM channels for metro core networking

Arlunno, V., Zhang, X., Larsen, K. J., Zibar, D. & Tafur Monroy, I., 2011, In : Optics Express. 19, 26, p. B270-B276

Research output: Contribution to journalJournal articleResearchpeer-review

Open Access
File
326 Downloads (Pure)

Digital Non-Linear Equalization for Flexible Capacity Ultradense WDM Channels for Metro Core Networking

Arlunno, V., Zhang, X., Larsen, K. J., Zibar, D. & Tafur Monroy, I., 2011, Proceedings of the European Conference on Optical Communication (ECOC) 2011. Optical Society of America, p. Tu.3.K.6

Research output: Chapter in Book/Report/Conference proceedingArticle in proceedingsResearchpeer-review

Open Access
File
318 Downloads (Pure)

Experimental investigation and digital compensation of DGD for 112 Gb/s PDM-QPSK clock recovery

Zibar, D., de Olivera, J. C. R. F., Ribeiro, V. B., Paradisi, A., Diniz, J. C., Larsen, K. J. & Tafur Monroy, I., 2011, In : Optics Express. 19, 26, p. B429-B439

Research output: Contribution to journalJournal articleResearchpeer-review

Open Access
File
616 Downloads (Pure)

Experimental Investigation of Digital Compensation of DGD for 112 Gb/s PDM-QPSK Clock Recovery

Zibar, D., de Oliviera, J. C. R., Ribeiro, V. B., Paradisi, A., Diniz, J. C., Larsen, K. J. & Tafur Monroy, I., 2011, Proceedings of the European Conference on Optical Communication (ECOC) 2011. Optical Society of America, p. Tu.6.A.4

Research output: Chapter in Book/Report/Conference proceedingArticle in proceedingsResearchpeer-review

Open Access
File
285 Downloads (Pure)

Over 10 dB Net Coding Gain Based on 20% Overhead Hard Decision Forward Error Correction in 100G Optical Communication Systems

Li, B., Larsen, K. J., Zibar, D. & Tafur Monroy, I., 2011, Proceedings of the European Conference on Optical Communication (ECOC) 2011. Optical Society of America, p. Tu.6.A

Research output: Chapter in Book/Report/Conference proceedingArticle in proceedingsResearchpeer-review

Open Access
File
962 Downloads (Pure)

Radio over fiber link with adaptive order n‐QAM optical phase modulated OFDM and digital coherent detection

Arlunno, V., Borkowski, R., Guerrero Gonzalez, N., Caballero Jambrina, A., Prince, K., Jensen, J. B., Zibar, D., Larsen, K. J. & Tafur Monroy, I., 2011, In : Microwave & Optical Technology Letters. 53, 10, p. 2245-2247

Research output: Contribution to journalJournal articleResearchpeer-review

1 Downloads (Pure)
2010

Error correcting coding for OTN

Justesen, J., Larsen, K. J. & Pedersen, L. A., 2010, In : I E E E Communications Magazine. 48, 9, p. 70-75

Research output: Contribution to journalJournal articleResearchpeer-review

2009

Digital coherent detection of subcarrier multiplexed phase modulated radio-over-fibre signals

Zibar, D., Larsen, K. J. & Tafur Monroy, I., 2009, Conference proceedings, OFC. IEEE, p. OTuM7

Research output: Chapter in Book/Report/Conference proceedingArticle in proceedingsResearchpeer-review

Digital coherent receiver for subcarrier multiplexed phase modulated radio-over-fibre signals

Zibar, D., Larsen, K. J. & Tafur Monroy, I., 2009, In : Electronics Letters. 45, 11, p. 563-U50

Research output: Contribution to journalJournal articleResearchpeer-review

Linewidth tolerance of digital coherent receiver using Viterbi & Viterbi RF carrier recovery for radio-over-fibre links

Guerrero Gonzalez, N., Zibar, D., Larsen, K. J. & Tafur Monroy, I., 2009, European Conference on Lasers and Electro-Optics 2009 and the European Quantum Electronics Conference. CLEO Europe - EQEC 2009. IEEE

Research output: Chapter in Book/Report/Conference proceedingArticle in proceedingsResearchpeer-review

Open Access
File
455 Downloads (Pure)
2007

Implementation of Turbo Decoder for the IFMS Telemetry Channel Decoding System

Andersen, J. D. & Larsen, K. J., 2007, Proceedings 4th ESA International Worksshop on Tracking Telemetry and Command Systems for Space applications. Darmstadt, Germany: ESA

Research output: Chapter in Book/Report/Conference proceedingArticle in proceedingsResearchpeer-review

Kampen mod støj: Når matematikken forbedrer det digitale udsyn

Larsen, K. J., 2007, Optiske Horisonter: en rejse på kommunikationsteknologiens vinger. 1 ed. Odense: COM.DTU, p. 241-251 259 p.

Research output: Chapter in Book/Report/Conference proceedingBook chapterResearchpeer-review

2004

Design of Frame Synchronizer and Decoders for Telemetry Channel Decoding System

Andersen, J. D., Larsen, K. J. & Brown, A., 2004, Proceedings ESA 3rd. International Workshop in Tracking, Telemetry and Command Systems for Space Application. Darmstadt, Germany: ESA, p. 601-606

Research output: Chapter in Book/Report/Conference proceedingArticle in proceedingsResearchpeer-review

2003

Codec Design Report, ESA/ESOC Contract No 15967/02/D/SW

Andersen, J. D., Justesen, J., Larsen, K. J. & Nielsen, R. R., 2003, Kgs. Lyngby: Technical University of Denmark. COM Center.

Research output: Book/ReportReport

Codec Development Report, ESA/ESOC Contract No. 15967/02/D/SW

Andersen, J. D., Justesen, J., Larsen, K. J. & Nielsen, R. R., 2003, Kgs.Lyngby: Technical University of Denmark. COM Center.

Research output: Book/ReportReport

1999

Compression and Processing of Space Image Sequences of Northern Lights and Sprites

Forchhammer, S. O., Martins, B., Jensen, O. R. & Larsen, K. J., 1999, Proc. 11th SCIA. Copenhagen: DSAGM

Research output: Chapter in Book/Report/Conference proceedingArticle in proceedingsResearchpeer-review

Evaluation of Extended CCSDS Reed-Solomon Codes for Bandwidth efficiency

Andersen, J. D., Justesen, J., Larsen, K. J. & Paaske, E., 1999, 74 p.

Research output: Book/ReportReport

1998

52211 Teleteknik 1, Transmissionsteknik: Noter

Larsen, K. J. & Staalhagen, L., 1998, 378 p.

Research output: Book/ReportBook

High Speed Frame Synchronization and Viterbi Decoding: Final Report

Paaske, E., Justesen, J., Larsen, K. J., Hansen, F., Pedersen, S., Sparsø, J., Andersen, J. D., Bach, T. B. & Garde, T., 1998, 306 p.

Research output: Book/ReportReport

High Speed Frame Synchronization and Viterbi Decoding

Paaske, E., Justesen, J., Larsen, K. J., Hansen, F., Pedersen, S., Sparsø, J., Andersen, J. D., Bach, T. B. & Garde, T. F., 1998, Technical University of Denmark, Dept. of Telecommunication (now COM).

Research output: Book/ReportReport