Zinātniskie rezultāti

Konferences

  1. Bobrovs V., Olonkins S., Ozoliņš O., Poriņš J., Lauks G. Hybrid Optical Amplifiers for Flexible Development in Long Reach Optical Access System // 3rd Fiber Optics in Access Network – Home Networking and QoE (2012), Krievija, Sanktpēterburga, 3.-5. oktobris, 2012;
  2. Lali-Dastjerdi Z., Ozoliņš O., An Y., Cristofori V., Da Ros F., Kang N., Hu H., Hansen Mulvad H., Rottwitt K., Galili M., Peucheret C. Demonstration of Cascaded In-Line Single-Pump Fiber Optical Parametric Amplifiers in Recirculating Loop Transmission // European Conference on Optical Communications (ECOC) 2012, Nīderlande, Amsterdama, 16.-20. septembris, 2012;
  3. Ozoliņš O., An Y., Lali-Dastjerdi Z., Ding Y., Bobrovs V., Ivanovs Ģ., Peucheret C. Cascadability of Silicon Microring Resonators for 40 Gbit/s OOK and DPSK Optical Signals // Asia Communications and Photonics Conference (ACP) 2012, Ķīna, Guandžou (Kantona), 7.-10. novembris, 2012;
  4. Bobrovs V., Udaļcovs A., Parts R., Trifonovs I. Evaluation of the Maximum Permissible Transmission Distance for the Mixed-HDWDM Systems // IX International Symposium on Telecommunications (BIHTEL 2012), Bosnija un Hercegovina, Sarajeva, 25.-27. oktobris, 2012;
  5. Udaļcovs A., Bobrovs V. Proposed Model of Mixed-WDM Systems Resulting from Development Trends in Optical Transport and Access Networks // 4th International Congress on Ultra Modern Telecommunications and Control Systems (ICUMT) 2012, Krievija, Sanktpēterburga , 3.-5. oktobris, 2012;
  6. Udaļcovs A., Bobrovs V., Ivanovs Ģ. Investigation of the Maximum Distance Reach for the Mixed-WDM Systems with Unequal Frequency Grid // International Symposium on Signals, Systems and Electronics 2012, Vācija, Potsdama, 3.-5. oktobris, 2012;
  7. Bobrovs V., Spolītis S., Ivanovs Ģ., Gavars P. Performance Improvement of High Speed Spectrum-Sliced Dense WDM-PON System // IX International Symposium on Telecommunications (BIHTEL 2012), Bosnija un Hercegovina, Sarajeva, 25.-27. oktobris, 2012;
  8. Spolītis S., Bobrovs V., Ivanovs Ģ. Reach Improvement of Spectrum-Sliced Dense WDM-PON System // Seventh International Conference on Broadband and Wireless Computing, Communication and Applications (BWCCA 2012), Kanāda, Viktorija, 12.-14. novembris, 2012;
  9. Spolītis S., Bobrovs V., Ivanovs Ģ. New Generation Energy Efficient WDM-PON System Using Spectrum Slicing Technology // International workshop on Fiber Optics at Access Network (FOAN 2012),Co-located with The International Conference on Ultra Modern Telecommunications (ICUMT 2012) (3rd Fiber Optics in Access Network - Home networking and QoE), Krievija, Sanktpēterburga, 3.-5. oktobris, 2012;
  10. Xiong M., Ozoliņš O., Ding Y., Huang B., An Y., Ou H., Peucheret C., Zhang X. 41.6 Gb/s RZ-DPSK to NRZ-DPSK Format Conversion in a Microring Resonator // 17th Opto-Electronics and Communications Conference (OECC 2012), Dienvidkoreja, Pusana, 2.-6. jūlijs, 2012;
  11. Asmuss J., Lauks G., Zagorskis V. Simulation of Dynamically Adaptive Bandwidth Allocation Protocols Using Coloured Petri Nets // 24th European Modeling & Simulation Symposium, Austrija, Vīne, 19.-21. septembris, 2012;
  12. Bobrovs V., Udaļcovs A., Trifonovs I. Investigation of Spectrally Eficient Transmission in Mixed WDM Systems // Progress in Electromagnetics Research Symposium (PIERS), Malaizija, Kualalumpūra, 27.-30. marts, 2012;
  13. Bobrovs V., Spolītis S., Ivanovs Ģ. Comparison of Chromatic Dispersion Compensation Techniques for WDM-PON Solution // 2nd Baltic Congress on Future Internet Communications (BCFIC 2012), Lietuva, Viļņa, 25.-27. aprīlis, 2012;
  14. Bobrovs V., Udaļcovs A., Trifonovs I. Investigation of Maximum Distance Reach for Spectrally Efficient Combined WDM Systems // 2nd Baltic Congress on Future Internet Communications (BCFIC 2012), Lietuva, Viļņa, 25.-27. aprīlis, 2012;
  15. Ozoliņš O., Bobrovs V., Ivanovs Ģ. DWDM-Direct Access System Based on the Fiber Bragg Grating Technology // 8th International Symposium on Communication Systems, Networks and Digital Signal Processing (CSNDSP’12), Polija, Poznaņa, 18.-20. jūlijs, 2012;
  16. Ozoliņš O., Ivanovs Ģ. New Generation Access System Based On DWDM-Direct With 55 GHz Fiber Bragg Grating // Developments in Optics and Communications 2012, Latvija, Rīga, 12.-14. aprīlis, 2012;
  17. Spolītis S., Ivanovs Ģ. A Study of High Bit Rate Spectrum-Sliced DWDM PON System // Developments in Optics and Communications 2012, Latvija, Rīga, 12.-14. aprīlis, 2012;
  18. Olonkins S., Ivanovs Ģ. Comparison of Co and Counter-propagating Raman Amplification in Nonlinearity Sensitive DWDM Transmission Systems // Developments in Optics and Communications 2012, Latvija, Rīga, 12.-14. aprīlis, 2012;
  19. Zaiceva V., Bobrovs V. Investigation of Spectral Slicing Technology in WDM-PON Systems // Developments in Optics and Communications 2012, Latvija, Rīga, 12.-14. aprīlis, 2012;
  20. Berezins S., Bobrovs V. Research of EDFA Application in WDM Systems // Developments in Optics and Communications 2012, Latvija, Rīga, 12.-14. aprīlis, 2012;
  21. Trifonovs I., Bobrovs V. Performance Enhancement of a Bidirectional DWDM Solution // Developments in Optics and Communications 2012, Latvija, Rīga, 12.-14. aprīlis, 2012;
  22. Udaļcovs A., Bobrovs V. Evaluation of the Maximum Permissible Transmission Distance for Mixed HDWDM Systems // Developments in Optics and Communications 2012, Latvija, Rīga, 12.-14. aprīlis, 2012;
  23. Skrastiņš A., Jeļinskis J., Lauks G. Selective Aggregated Session Control with QoS Provisioning for GMPLS Networks // Electronics 2012, Lietuva, Palanga, 18.-20. jūnijs, 2012;
  24. Spolītis S., Bobrovs V., Ivanovs Ģ. Investigation of High-Speed AWG Filtered Spectrum-Sliced WDM PON System // 8th IEEE, IET International Symposium on Communication Systems, Networks and Digital Signal Processing (CSNDSP 2012): Conference Proceedings 2012 (IEEE Xplore), Polija, Poznaņa, 18.-20. jūlijs, 2012;
  25. Spolītis S., Bobrovs V., Berezins S., Ivanovs Ģ. Optimal Design of Spectrally Sliced ASE Seeded WDM-PON System // 15th International Telecommunications Network Strategy and Planning Symposium: Conference Proceedings 2012 (IEEE Xplore), Itālija, Roma, 15.-18. oktobris, 2012;
  26. Olonkins S., Bobrovs V., Ivanovs Ģ. Comparison of Semiconductor Optical Amplifier and Discrete Raman Amplifier Performance in DWDM Systems // Electronics 2012, Lietuva, Palanga, 18.-20. jūnijs, 2012;
  27. Udaļcovs A., Bobrovs V. Investigation of Spectrally Efficient Transmission for Unequally Channel Spaced WDM Systems with Mixed Data Rates and Signal Formats // 8th IEEE, IET International Symposium on Communication Systems, Networks and Digital Signal Processing (CSNDSP) 2012: IEEE Conference Proceedings, Polija, Poznaņa, 18.-20. jūlijs, 2012;
  28. Supe A., Poriņš J. Interaction between Electromagnetic Field and Optical Signal Transmission in Fiber Optics // Electronics 2012, Lietuva, Palanga, 18.-20. jūnijs, 2012;
  29. Poriņš J., Ivanovs Ģ., Bobrovs V., Supe A. Investigation of External Electromagnetic Disturbance in HDWDM System // Progress in Electromagnetics Research 2012: PIERS Proceedings, Malaizija, Kualalumpūra, 27.-30. marts, 2012;
  30. Berezins S., Bobrovs V. EDFA Application Research in WDM Communication Systems // Electronics 2012, Lietuva, Palanga, 18.-20. jūnijs, 2012;
  31. Bobrovs V., Ivanovs Ģ., Udaļcovs A., Spolītis S., Ozoliņš O. Mixed Chromatic Dispersion Compensation Methods for Combined HDWDM Systems // IEEE CPS, Spānija, Barselona, 26.-28. oktobris, 2011;
  32. Ivanovs Ģ., Spolītis S. Extending the Reach of DWDM-PON Access Network Using Chromatic Dispersion Compensation // IEEE Swedish Communication Technologies Workshop 2011, Zviedrija, Stokholma, 19.-21. oktobris, 2011;
  33. Udaļcovs A., Bobrovs V. Investigation of Spectrally Efficient Transmission for Differently Modulated Optical Signals in Mixed Data Rates WDM Systems // IEEE Swedish Communication Technology Workshop 2011, Zviedrija, Stokholma, 19.-21. oktobris, 2011;
  34. Ozoliņš O., Bobrovs V., Ivanovs Ģ. Efficient Bandwidth Measurements of Fiber Bragg Gratings for Next-Generation Optical Access // Optics & High Technology Material Science SPO 2011 Scientific Works, Ukraina, Kijeva, 27.-30. oktobris, 2011;
  35. Spolītis S., Ļašuks I. Investigation of DWDM System Based on Cascaded Four-Wave Mixing // IEEE Swedish Communication Technologies Workshop 2011, Zviedrija, Stokholma, 19.-21. oktobris, 2011;
  36. Ozoliņš O., Bobrovs V., Ivanovs Ģ. Efficient Bandwidth of 50 GHz Fiber Bragg Grating for New-Generation Optical Access // 19th IEEE Telecommunications Forum TELFOR 2011 IEEE, Serbija, Belgrada, 22.-24. novembris, 2011;
  37. Supe A., Poriņš J. Optical Fibre Effective Area Measurements // Developments in Optics and Communications 2011, Latvija, Rīga, 28.-30. aprīlis, 2011;
  38. Ozoliņš O., Bobrovs V., Ivanovs Ģ. Evaluation of Optical Filters for DWDM-Direct in Next Generation Optical Access // DOC 2011, Latvija, Rīga, 28.-30. marts, 2011;
  39. Spolītis S., Bobrovs V., Ivanovs Ģ. Evaluation of Combined Chromatic Dispersion Compensation Methods in Fiber Optical Transmission Systems // Developments in Optics and Communications 2011, Latvija, Rīga, 28.-30. aprīlis, 2011;
  40. Udaļcovs A., Bobrovs V., Ivanovs Ģ. Investigation of Spectral Efficiency for Mixed Data Rates Combined HDWDM Systems // Developments in Optics and Communications 2011, Latvija, Rīga, 28.-30. aprīlis, 2011;
  41. Ozoliņš O., Bobrovs V., Ivanovs Ģ. DWDM-Direct System with FBG Technology for New-Generation Optical Access // IEEE Swedish Communication Technologies Workshop (Swe-CTW) Conference Proceedings, Zviedrija, Stokholma, 19.-21. oktobris, 2011;
  42. Spolītis S., Ivanovs Ģ. Performance Evaluation of WDM and TDM Passive Optical Networks // Optics & High Technology Material Science SPO 2011 Scientific Works, Ukraina, Kijeva, 27.-30. oktobris, 2011;
  43. Jeļinskis J., Skrastiņš A., Lauks G. Fuzzy-CAC Driven MPLS-TE Realization // IEEE HPSR 2011, Spānija, Cartagena, 4.-6. jūlijs, 2011;
  44. Ozoliņš O., Bobrovs V., Ivanovs Ģ. Efficient Bandwidth Measurements of Thin Film Filters for Next-Generation Optical Access // PGNet2011 Conference, Lielbritānija, Liverpūle, 27.-28. jūnijs, 2011;
  45. Jeļinskis J., Skrastiņš A., Lauks G. Fuzzy-CAC based Traffic Management in MPLS-TE Networks // Contel 2011, Austrija, Grāca, 15.-17. jūnijs, 2011;
  46. Bobrovs V., Ivanovs Ģ., Udaļcovs A. Investigation of Allowed Channel Spacing for Differently Modulated Optical Signals in Combined HDWDM Systems // The 15th International Conference of ELECTRONICS, Lietuva, Kauņa, 17.-19. maijs, 2011;
  47. Bobrovs V., Ivanovs Ģ., Spolītis S. Realization of Combined Chromatic Dispersion Compensation Methods in High Speed WDM Optical Transmission Systems // The 15th International Conference of ELECTRONICS, Lietuva, Kauņa, 17.-19. maijs, 2011;
  48. Bobrovs V., Ivanovs Ģ., Trifonovs I. Optimization of a Standard Bidirectional DWDM Solution // The 15th International Conference of ELECTRONICS, Lietuva, Kauņa, 17.-19. maijs, 2011;
  49. Ozoliņš O., Ivanovs Ģ. Estimation of DWDM Transmission for Broadband Access with FBG Technology // The 15th International Conference of ELECTRONICS, Lietuva, Kauņa, 17.-19. maijs, 2011;
  50. Supe A., Poriņš J. Comparison of Different FWM Realization Methods in Optical Fibre // The 15th International Conference of ELECTRONICS, Lietuva, Kauņa, 17.-19. maijs, 2011;
  51. Skrastiņš A., Lauks G., Jeļinskis J. Testing the Null Hypothesis of Stationarity of Internet Traffic // The 15th International Conference of ELECTRONICS, Lietuva, Kauņa, 17.-19. maijs, 2011;
  52. Jeļinskis J., Skrastiņš A., Lauks G. Practical Fuzzy-CAC Realization for Effective Traffic Engineering in MPLS-TE Networks // The 15th International Conference of ELECTRONICS, Lietuva, Kauņa, 17.-19. maijs, 2011;
  53. Ļašuks I. The Evaluation of 16-Channel Hybrid ASE and LED WDM-PON System Performance // The 15th International Conference of ELECTRONICS, Lietuva, Kauņa, 17.-19. maijs, 2011;
  54. Ozoliņš O., Bobrovs V., Ivanovs Ģ. Evaluation of Optical Filters for DWDM-Direct in Next Generation Optical Access // DOC 2011, Latvija, Rīga, 28.-30. marts, 2011;
  55. Udaļcovs A., Bobrovs V., Ivanovs Ģ. Investigation of Spectral Efficiency for Mixed Data Rates Combined HDWDM Systems // Developments in Optics and Communications 2011, Latvija, Rīga, 28.-30. aprīlis, 2011;
  56. Supe A., Poriņš J. Optical Fibre Effective Area Measurements // Developments in Optics and Communications 2011, Latvija, Rīga, 28.-30. aprīlis, 2011;
  57. Spolītis S., Bobrovs V., Ivanovs Ģ. Evaluation of Combined Chromatic Dispersion Compensation Methods in Fiber Optical Transmission Systems // Developments in Optics and Communications 2011, Latvija, Rīga, 28.-30. aprīlis, 2011;
  58. Ozoliņš O., Bobrovs V. Research of Fiber Bragg Gratings in WDM Technologies for Broadband Access // Optics & High Technology Material Science SPO 2010 Scientific works, Ukraina, Kijeva, 21.-24. oktobris, 2010;
  59. Jeļinskis J., Lauks G. Fuzzy CAC Adaptation for Effective Traffic Control in GMPLS Networks // 18th Telecommunications Forum TELFOR 2010, Serbija, Belgrada, 23.-25. novembris, 2010;
  60. Supe A., Poriņš J. Nonlinear Coefficient Determination for Telecommunications Optical Fibre // Abstracts of the 11th International Scientists Conference “Optics and High Technology Material Science”, Ukraina, Kijeva, 21.-24. oktobris, 2010;
  61. Jeļinskis J., Lauks G. Fuzzy Approach for QoS Aware Application Driven Traffic Control in GMPLS Networks // Proceedings, 2010 IEEE Region 8 International Conference on COmputational Technologies in Electrical and Electronics Engineering, Volume I, Krievija, Irkutska, Listvjanka, 11.-15. jūlijs, 2010;
  62. Poriņš J., Ivanovs Ģ., Bobrovs V., Ozoliņš O., Supe A. Measurements of Nonlinear Coefficient in Optical Fibers with the CW-FWM method // Laser 50, Latvija, Daugavpils, 28.-29. jūnijs, 2010;
  63. Bobrovs V., Ivanovs Ģ. Investigation of Different Modulation Formats Simultaneous Transmission in WDM Systems // The 14th International Conference of ELECTRONICS, Lietuva, Kauņa, 18.-20. maijs, 2010;
  64. Ozoliņš O., Ivanovs Ģ. Evaluation of Band-Pass Filters Influence on NRZ Signal in HDWDM Systems // The 14th International Conference of ELECTRONICS, Lietuva, Kauņa, 18.-20. maijs, 2010;
  65. Supe A., Poriņš J., Ivanovs Ģ. Measurement of Nonlinear Coefficient in Optical Fiber // Developments in Optics and Communications 2010: International Student Conference, Latvija, Rīga, 23.-25. aprīlis, 2010;
  66. Bobrovs V., Udaļcovs A. ESTIMATION OF COMBINED NRZ-DUOBINARY-NRZ HDWDM SYSTEM PERFORMANCE // Developments in Optics and Communications 2010:International Student Conference, Latvija, Rīga, 23.-25. aprīlis, 2010;
  67. Ozoliņš O., Ivanovs Ģ. Estimation of optical filter narrowing in high speed WDM systems // Developments in Optics and Communications 2010: International Student Conference, Latvija, Rīga, 23.-25. aprīlis, 2010;
  68. Poriņš J., Ivanovs Ģ., Supe A. Measurements of Nonlinear Coefficient in OS2 Optical Fiber // The 14th International Conference of ELECTRONICS, Lietuva, Kauņa, 18.-20. maijs, 2010;
  69. Bobrovs V. Ivanovs Ģ. Cable Telecommunications Training Services visitors // 35th European Conference on Optical Communication, Austrija, Vīne, 20.-24. septembris, 2009;
  70. Poriņš J., Bobrovs V., Ozoliņš O. Influence of External Electromagnetic Disturbance on the High Data Rate Signal in Optical Transmission Systems // RTU 50th International Scientific Conference, Section Telecommunications, Latvija, Rīga, 14.-16. oktobris, 2009;
  71. Ozoliņš O., Ivanovs Ģ. Evaluation of Optimal FBG Filter Apodization Function for HDWDM // RTU 50th International Scientific Conference, Section Telecommunications, Latvija, Rīga, 14.-16. oktobris, 2009;
  72. Ļašuks I. FTTH Upgrade to WDM-PON // RTU 50th International Scientific Conference, Section Telecommunications, Latvija, Rīga, 14.-16. oktobris, 2009;
  73. Jeļinskis J., Lauks G. Detection of Trends of Internet Traffic Using Sequential Patterns // The 13th International Conference of ELECTRONICS, Lietuva, Kauņa, 13.-15. maijs, 2009;
  74. Lauks G., Jeļinskis J. Metamodelling of Queuing Systems Using Fuzzy Graphs // The 13th International Conference of ELECTRONICS, Lietuva, Kauņa, 13.-15. maijs, 2009;
  75. Ozoliņš O., Ivanovs Ģ. Realization of Optimal FBG Band–Pass Filters for High Speed HDWDM // The 13th International Conference of ELECTRONICS, Lietuva, Kauņa, 13.-15. maijs, 2009;
  76. Bobrovs V., Ivanovs Ģ. Investigation of Minimal Channel Spacing in HDWDM Systems // The 13th International Conference of ELECTRONICS, Lietuva, Kauņa, 13.-15. maijs, 2009;
  77. Ļašuks I. Investigation of Colorless WDM-PON Using a Broadband ASE-Source // The 13th International Conference of ELECTRONICS, Lietuva, Kauņa, 13.-15. maijs, 2009;
  78. Ščemeļevs A., Poriņš J. BER Performance of a Lumped Single-pump Fiber Optical Parametric Amplifier in a 10 Gbits 4-channel S-band DWDM System // The 13th International Conference of ELECTRONICS, Lietuva, Kauņa, 13.-15. maijs, 2009;
  79. Ozoliņš O., Bobrovs V. Investigation of Flat-Top BPF Usability in Amplified Fiber Optical Systems // Developments in Optics and Communications 2009, Latvija, Rīga, 24.-26. oktobris, 2009;
  80. Poriņš J., Ivanovs Ģ., Džeriņš O. Influence of External Electromagnetic Disturbance on the Optical Fiber Properties in WDM Systems // The 13th International Conference of ELECTRONICS, Lietuva, Kauņa, 13.-15. maijs, 2009;
  81. Ivanovs Ģ., Ozols A., Poriņš J. The energetical threshold of optical information detection due to thermal noise // Proceedings of SPIE, The 6th International Conference “Advanced Optical Materials and Devices”, Latvija, Rīga, 24.-27. augusts, 2008;
  82. Rutka G. Prediction Accuracy of Neural Network Models // The 12th International Conference of ELECTRONICS, Lietuva, Kauņa, 20.-22. maijs, 2008;
  83. Rutka G. Network Traffic Prediction Using ARIMA and Neural Networks Models // The 12th International Conference of ELECTRONICS, Lietuva, Kauņa, 20.-22. maijs, 2008;
  84. Jeļinskis J., Lauks G. Data Mining for Managing Intrinsic Quality of Service in MPLS // The 12th International Conference of ELECTRONICS, Lietuva, Kauņa, 20.-22. maijs, 2008;
  85. Jeļinskis J., Lauks G. Approximation of Internet Traffic Using Robust Wavelet Neural Networks // The 12th International Conference of ELECTRONICS, Lietuva, Kauņa, 20.-22. maijs, 2008;
  86. Bobrovs V., Ivanovs Ģ. Investigation of Mixed Data Rate and Format Transmission in WDM Networks // The 12th International Conference of ELECTRONICS, Lietuva, Kauņa, 20.-22. maijs, 2008;
  87. Ļašuks I., Ozoliņš O., Ščemeļevs A. Investigation of Spectrum-Sliced WDM System // The 12th International Conference of ELECTRONICS, Lietuva, Kauņa, 20.-22. maijs, 2008;
  88. Lauks G., Rutka G. Study on Internet Traffic Prediction Models // The 11th International Conference of ELECTRONICS, Lietuva, Kauņa, 21.-23. maijs, 2007;
  89. Jeļinskis J., Lauks G. Optimal Policy for LSP Control in MPLS Networks // The 11th International Conference of ELECTRONICS, Lietuva, Kauņa, 21.-23. maijs, 2007;
  90. Parts R. Transmission Capacity of Local Copper Cables // The 11th International Conference of ELECTRONICS, Lietuva, Kauņa, 21.-23. maijs, 2007;
  91. Bobrovs V., Ivanovs Ģ., Poriņš J. Influence of nonlinear optical effects on the NRZ and RZ modulation signals in WDM systems // The 11th International Conference of ELECTRONICS, Lietuva, Kauņa, 21.-23. maijs, 2007;
  92. Bobrovs V., Ivanovs Ģ. Parameter Evaluation of a Dense Optical Network The 10th International Conference of ELECTRONICS, Lietuva, Viļņa, 16.-19. maijs, 2007;
  93. Poriņš J., Ozols A. Nonlinear optical effects in telecommunication fibre // Developments in Optics and Communications 2005: International Student Conference, Latvija, Rīga, 2005.

 

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