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6. Optical Amplification-Free High Baudrate Links for Intra-Data Center Communications

Author

Ozolins, Oskars, Joharifar, Mahdieh, Salgals, T., Louchet, H., Schatz, Richard, Gruen, M., Dippon, T., Kruger, B., Pittala, F., Che, D., Matsui, Y., Fan, Yuchuan, Udalcovs, A., Westergren, Urban, Zhang, L., Yu, X., Spolitis, S., Bobrovs, V., Popov, Sergei, Pang, Xiaodan, Ozolins, Oskars, Joharifar, Mahdieh, Salgals, T., Louchet, H., Schatz, Richard, Gruen, M., Dippon, T., Kruger, B., Pittala, F., Che, D., Matsui, Y., Fan, Yuchuan, Udalcovs, A., Westergren, Urban, Zhang, L., Yu, X., Spolitis, S., Bobrovs, V., Popov, Sergei, and Pang, Xiaodan

Abstract

The enormous traffic growth sets a stringent requirement to upgrade short-reach optical links to 1.6 TbE capacity in an economically viable way. The power consumption and latency in these links should be as low as possible, especially for high-speed computing. This is possible to achieve using high baudrate on-off keying links thanks to a better noise tolerance and a relaxed requirement on linearity for electronics and photonics. In this regard, we demonstrate a 200 Gbaud on-off keying link without any optical amplification using an externally modulated laser with 3.3 dBm of modulated output power operating at 1541.25 nm wavelength. We achieve transmission over 200 meters of single-mode fiber with performance below 6.25% overhead hard-decision forward error correction threshold for each baudrate and all selection of modulation formats. We also show 108 Gbaud on-off keying link with superior performance without decision feedback equalizer up to 400 meters of single-mode fiber. In addition, we benchmark the short-reach optical link with 112 Gbaud four-level pulse amplitude modulation and 100 Gbaud six-level pulse amplitude modulation. For 108 Gbaud on-off keying and 112 Gbaud four-level pulse amplitude modulation, we can achieve an even lower bit error rate., QC 20230613

Published
2023
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7. 260-GBaud Single-Wavelength Coherent Transmission over 100-km SSMF based on Novel Arbitrary Waveform Generator and Thin-Film Niobate I/Q Modulator

Author

Almonacil, S., primary, Mardoyan, H., additional, Jorge, F., additional, Pittalà, F., additional, Xu, M., additional, Krueger, B., additional, Blache, F., additional, Duval, B., additional, Chen, L., additional, Yan, Y., additional, Ye, X., additional, Ghazisaeidi, A., additional, Rimpf, S., additional, Zhu, Y., additional, Wang, J., additional, Goix, M., additional, Hu, Z., additional, Duthoit, M., additional, Gruen, M., additional, Cai, X., additional, and Renaudier, J., additional

Published
2023
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11. Optical Amplification-Free 200 Gbaud On-Off Keying Link for Intra-Data Center Communications

Author

Ozolins, O., Toms Salgals, Louchet, H., Joharifar, M., Schatz, R., Gruen, M., Dippon, T., Kruger, B., Che, D., Matsui, Y., Fan, Y., Udalcovs, A., Zhang, L., Yu, X., Spolitis, S., Bobrovs, V., Popov, S., and Pang, X.

Abstract

We demonstrate a 200 Gbaud OOK link without any optical amplification using C-band externally modulated laser with 3.3 dBm of modulated output power. We achieve below 6.25% overhead HD-FEC threshold after 200 meters of SMF.

Published
2022

13. Excited State Absorption in Tb Activated Phosphor Powders

Author

Raue, R., Young, D. A., dos Santos, L. M., Verhaar, H. C. G., Monteiro, T., Albin, S., von Seggern, H., Giakoumakis, G. E., Chapoulie, R., Mishra, K. C., Grün, M., Uhrig, A., Sarkisov, S. E., Donnelly, C. J., Momoda, L. A., Sytsma, J., Schwab, H., Minella, M., Hollis, D. B., Zhang, X. X., Meijerink, A., van Vliet, J. P. M., Jain, S., Oberhauser, D., Imbusch, G. F., Pekcan, Ö., and Di Bartolo, Baldassare, editor

Published
1991
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19. 300+ Gbps Short-Reach Optical Communications

Author

Ozolins, Oskars, Zhang, L., Udalcovs, A., Louchet, H., DIppon, T., Gruen, M., Pang, X., Schatz, Richard, Westergren, Urban, Xiao, S., Popov, Sergei, Chen, J., Ozolins, Oskars, Zhang, L., Udalcovs, A., Louchet, H., DIppon, T., Gruen, M., Pang, X., Schatz, Richard, Westergren, Urban, Xiao, S., Popov, Sergei, and Chen, J.

Abstract

We review experimental intensity modulation and direct detection demonstrations for short reach optical communications. We also evaluate 8-level PAM and DMT transmitter to deliver 300 Gbps line rate and beyond per single lane in C-band., QC 20210315

Published
2020
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21. 100 Gbaud PAM4 link without EDFA and post-equalization for optical interconnects

Author

Ozolins, Oskars, Zhang, Lu, Udalcovs, A, Louchet, H, Dippon, T, Gruen, M, Pang, Xiaodan, Schatz, Richard, Westergren, Urban, Xiao, S, Popov, Sergei, Chen, Jiajia, Ozolins, Oskars, Zhang, Lu, Udalcovs, A, Louchet, H, Dippon, T, Gruen, M, Pang, Xiaodan, Schatz, Richard, Westergren, Urban, Xiao, S, Popov, Sergei, and Chen, Jiajia

Abstract

We show 100 Gbaud PAM4 400 meters link with performance below the 7% HD-FEC limit of 5x10-3 without optical amplification and post-equalization. We also show 300 Gbps PAM8 line rate transmission over 400 meters of SSMF in C-band., QC 20201210

Published
2019
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22. Lattice pilot aided DMT transmission for optical interconnects achieving 5.82-bits/Hz per lane

Author

Zhang, Lu, Chen, Jiajia, Udalcovs, A., Louchet, H., Dippon, T., Gruen, M., Pang, Xiaodan, Schatz, Richard, Westergren, Urban, Popov, Sergei, Xiao, S., Ozolins, Oskars, Zhang, Lu, Chen, Jiajia, Udalcovs, A., Louchet, H., Dippon, T., Gruen, M., Pang, Xiaodan, Schatz, Richard, Westergren, Urban, Popov, Sergei, Xiao, S., and Ozolins, Oskars

Abstract

We experimentally demonstrate 276-Gbps net rate 128QAM-DMT transmission at soft-FEC limit in an IM/DD system with a single C-band packaged EML, a DAC and a photo-detector, proposing a lattice pilot algorithm for channel equalization with only 1% overhead reaching spectral efficiency of 5.82-bits/Hz per lane., QC 20210914

Published
2019

42. Hepatologie

Author

Löke, S., Brede, H. D., Möller, B., Hopf, U., Shirpai, M., Lobeck, H., Theilmann, L., Gmelin, K., Will, H., Renz, M., Czygan, P., Roggendorf, M., Kommerell, B., Rasenack, J., Pausch, J., Gerok, W., Poralla, T., Hütteroth, T. H., Meyer zum Büschenfelde, K.-H., Holstege, A., Staritz, M., Ewe, K., Schulz, R., Hahn, U., Schuppan, D., Hahn, E. G., Riecken, E. G., Stellaard, F., Sackmann, M., Sauerbruch, T., Paumgartner, G., Wietholtz, H., Miltenberger, C., Buscher, H. P., Maurer, P., Bartel, J. H., Miing, D., Dölle, W., Berg, P. A., Penner, E., Hitchman, E., Bakos, S., Reichlin, M., Burghardt, W., Schweisfurth, H., Wernze, H., Loewe, Ch., Riecken, E. O., Klein, Chr.-P., Grein, N., Heinrich, R., Dette, S., Günderoth-Palmowski, M., Grauer, W., Schomerus, H., Grün, M., Goerig, M., Höfler, B., Peter, G., Hain, P., Werner, E., Spörle, A., Beyermann, P., Lippold, R., Okonek, S., Theile, U., Rühlmann, Th., Rebhuhn, S., Stremmel, W., Borchard, F., Teschke, R., Hödtke, R., Berk, P. D., Strohmeyer, G., Schölmerich, J., Kitamura, S., Miyai, K., Miehlke, Klaus, editor, and Bergmann, J. F.

Published
1984
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43. Gastroenterologie

Author

Berges, W., Baumgärtner, U., Baum, J., Ulrich, B., Wienbeck, M., Sauerbruch, T., Weinzierl, M., Köpcke, W., Paumgartner, G., Singer, M. V., Eysselein, V., Goebell, H., Hanrath, R.-D., Müller, J. E., Fritsch, W.-P., Rohner, H. G., Blömer, A., Echterhoff, H.-M., Gugler, R., Kachel, G., Ruppin, H., Hagel, J., Goertzen, W., Domschke, W., Müller, P., Seitz, K. S., Simon, B., Dammann, H. G., Schepp, W., Ruoff, H.-J., Maśliński, S., Miederer, S. E., Sommer, H., Grün, M., Koop, H., Arnold, R., Staritz, M., Ewe, K., Meyer zum Büschenfelde, K.-H., Niederau, C., Erckenbrecht, J., Scholten, T., Sonnenberg, A., Stock, K. P., Riemann, J. F., Müller, M. K., Demol, P., Fladrich, G., Pederson, R., Herr Raptis, S., Malfertheiner, P., Walliser, A., Maier, W., Ditschuneit, H., Cichy, W., Lankisch, P. G., Creutzfeldt, W., Räth, U., Johnson, P. J., Greenway, B. A., Corbishley, T. P., Williams, R., Hildebrandt, R., Häger, V., Erckenbrecht, J. F., Schneider, M. U., Domschke, S., Lembcke, B., Göke, B., Kalek, H. D., Stellaard, F., Kruis, W., Lösler, A., Schürnbrand, P., Caspary, W. F., Emrich, D., Hagemann, H., Müller, I., Karaus, M., Reimann, H.-J., Ultsch, B., Schmidt, U., Bader, M., Langer, C., Wendt, P., Köttgen, E., Volk, B., Kluge, F., Gerok, W., West, T. B., Peerenboom, H., Keck, E., Kohlsdorfer, W., Krüskemper, H. L., Otte, M., Normann, D., Bellinger, H., Friedrich, H. J., Jantschek, G., Studt, J., Waller, D., Wood, W. G., Auer, I. O., Röder, A., Wensinck, F., van de Merwe, J. P., Schmiedt, H., Förster, S., Karbach, U., Dehos, H., Feurle, G. E., Keller, O., Herzog, P., Ebener, B., Fischer, J., Brod, J., Holtermüller, K. H., Mannes, G. A., Wiebecke, B., Thieme, C., Winter, H.-J., Cicmir, I., Berger, H., Gries, F. A., and Schlegel, Bernhard, editor

Published
1983
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48. Zwischenbericht über die kooperative DFG-Studie 'Akute Virushepatitis'

Author

Kaboth, U., Alexander, M., Beckenbach, H., Brodersen, M., Brückner, O., Brügmann, L., Creutzfeldt, W., Deicher, H., Gerlich, W., Grün, M., Grünert-Fuchs, I., Havemann, K., Hütteroth, T. H., Immich, H., Klinge, O., Knolle, J., Martini, G. A., Mascher, C., Meyer zum Büschenfelde, K. H., Müller, R., Nowrousian, R., Ortmans, H., Sanwald, R., Sattel, M., Schober, A., Schultz, H., Sodomann, C.-P., Stamm, B., Thamer, G., Thomssen, R., Wepler, W., Wille, G., and Schlegel, B., editor

Published
1976
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