Jiří Kaňka, Ph.D.

Research interests:

Numerical analysis and optimal design of optical fibers functionalized for chemical and biochemical evanescent sensors. The functionalization of sensor fibers includes special coatings, inscription of long-period gratings and immobilization of metallic plasmonic nanoparticles.

Education:

1977:  Ph.D.- Radioelectronics, Czechoslovak Academy of Sciences
1970:  M.S. - Electrical Engineering, specialized in Radar Engineering, Military Academy of Brno  

Current research projects:

Principal investigator of the project:

• Chemical and biochemical sensors based on functionalized micro- and nanostructured optical waveguides
• Modelling, design and characterization of photonic crystal fibers for optical sensors

Member of projects:

• FOGS - Fibre Optic Gas Sensing

Past research projects:

Principal investigator of the projects:

• Microstructured optical fiber components for optical communications
• Nonlinear effects in microstructure optical fibres and their potential applications for future communication systems
• Air-silica microstructure fibers for evanescent-wave chemical sensing
• Methods for characterisation of advanced optical fibres and novel fibre components for optical communications
• Generation of high repetition rate trains of optical pulses through modulational instabilities in fibre lasers

Member of the projects:

• Components for high transmission rate all-optical networks
• Bend sensing with long-period gratings inscribed by CO2 laser in conventional and microstructure optical fibers of selected types
• Raman fibre amplifiers with time-division multiplexed pumping
• Optical fibre amplifiers for digital optical network
• Thulium doped silica fibres for fibre amplifiers
• Optimization of data transmission at 10Gbit/s over G.652 fibres without the deployment of in-line EDFA's with respect to maximum transmission distance
• Wideband hybrid optical amplifiers for local area networks
• Frequency resolved optical gating based on cross phase modulation in a microstructured optical fiber
• Air-silica microstructure fibres: methods of fabrication and characterisation

Supervised students:

M.S. Students:

• Pavel Peterka (graduated in 1993)
• Pavel Kočica  (graduated in 2006) 
• Jiří Thoma (graduated in 2008)

Ph.D. Students:

• Pevel Peterka (defended in 1999)
• Tomáš Martan  (defended in 2006)
• Boleslav Vrany (defended in 2010)
• Pavel Koška

Publications:

Journal papers:

1. Chen H., Tian F., Chi J., Kanka J., Du H., Advantage of multi-mode sapphire optical fiber for evanescent-field SERS sensing, Optics Letters 39, 5822-5825 (2014).
2. Tian F., Kanka J., Li X., Du H., Monitoring layer-by-layer assembly of polyelectrolyte multi-layers using high-order cladding mode in long-period fiber gratings,  Sensors and Actuators B-Chemical 196, 475-479 (2014).
3. Tian F., Kanka J., Zou B., Chiang K.S., Du H., Long-period gratings inscribed in photonic crystal fiber by symmetric CO2 laser irradiation, Optics Express 21, 13208 (2013).
4. Kanka J., Design of turn-around-point long-period gratings in a photonic crystal fiber for refractometry of gases, Sensors and Actuators B-Chemical 182, 16 (2013).
5. Tian F., Kanka J., Sukhishvili S., Du H., Photonic crystal fiber for layer-by-layer assembly and measurements of polyelectrolyte thin films, Optics Letters 37, 4299 (2012).
6. Tian F., Kanka J., Du H., Long-period grating and its cascaded counterpart in photonic crystal fiber for gas phase measurement, Optics  Express 20, 20951 (2012). 
7. Vrany B., Honzatko P., Kanka J., Optimization of genetic algorithm for reconstruction of cross-phase modulation frequency-resolved optical gating data, International Journal of Numerical Modelling-Electronic Networks Devices and Fields 24, 448 (2011).
8. Oo M.K.K., Han Y., Kanka J., Sukhishvil S., Du H., Structure fits the purpose: photonic crystal fibers for evanescent-field surface-enhanced Raman spectroscopy, Optics Letters 3, 466 (2010).
9. He Z., Zhu Y., Kanka J., Du H., Core-cladding mode coupling and recoupling in photonic crystal fiber for enhanced overlap of evanescent field using long-period gratings, Optics Express 18, 507 (2010).
10. Martan T., Kanka J., Kasik I., Matejec V., Theoretical analysis and preparation of tapered suspended core microstructure fibers, International Journal of Optomechanotronics 3, 233 (2009).
11. Kanka J., Design of photonic crystal fibers with highly nonlinear glasses for four-wave-mixing based telecom applications, Optics Express 16, 20395 (2008).
12. Zhu Y., Zonghu H., Du H., Kanka J., Numerical analysis of refractive index sensitivity of long-period gratings in photonic crystal fiber, Sensors and Actuators B-Chemical 129, 99 (2008).
13. Zhu Y., Du H., Bise R.T., Kanka J., Peterka P., Fabrication and characterization of solid-core photonic crystal fiber with steering-wheel air-cladding for strong evanescent field overlap, Optics Communications 28, 55 (2008).
14. Peterka P., Kanka J., Honzatko P., Kacik D., Measurement of chromatic dispersion of microstructure optical fibers using interferometric method, Optica Applicata 38, 295 (2008).
15. Matejec V.,  Mrazek J., Hayer M., Podrazky O., Kanka J., Kasik I.,  Sensitivity of microstructure fibers to gaseous oxygen, Materials Science and Engineering C 28 , 876 (2008).
16. Karasek M., Kanka J., Honzatko P., Vojtech J., Radil J., Multi-wavelength conversion at 10 Gb/s and 40 GHz based on nonlinear effects in HNLF, Annales of Telecommuniations  62, 925 (2007).
17. Karasek M., Kanka J., Bohac L., Krcmarik D., Radil J., Vojtech J., Surviving-channel-power transients in second-order pumped lumped Raman fiber amplifier: Experimentation and modeling, Journal of Lightwave Technology 25, 664 (2007).
18. Chomat M., Ctyroky J., Berkova D., Matejec V., Kanka J., Skokankova J., Todorov F., Jancarek A.,  Bittner P., Temperature sensitivity of long-period gratings inscribed with a CO2 laser in optical fiber with graded-index cladding, Sensors and Actuators B-Chemical 119, 642 (2006).
19. Matejec V., Mrazek J., Hayer M., Kasik I., Peterka P., Kanka J., Honzatko P., Berkova D., Microstructure fibers for gas detection, Materials Science and Engineering C 26, 317 (2006).
20. Chomat M., Berkova D., Matejec V., Kasik I., Kanka J., Slavik R., Jancarek A., Bitner P., Responses of a long-period grating fabricated in a graded-index optical fiber to temperature and refractive-index changes, Materials Science and Engineering C 26, 457 (2006).
21. Karasek M., Kanka J., Khan G.R., Radil J., Design of all-optical gain-clamped lumped Raman fibre amplifier for optimal dynamic performance, IEE Proceedings-Optoelectronics 152, 223 (2005).
22. Karasek M., Kanka J., Radil J., Vojtech J., Large signal model of TDM-pumped Raman fiber amplifier, IEEE Photonics Technology Letters 17, 1848 (2005).
23. Honzatko P., Kanka J., Vrany B., Measurement of pulse amplitude and phase using cross-phase modulation in microstructure fiber, Optics Letters 30, 1821 (2005). 
24. Honzatko P., Kanka J., Vrany B., Retrieval of the pulse amplitude and phase from cross-phase modulation spectrograms using the simulated annealing method, Optics Letters 12, 6046 (2004).
25. Karasek M., Kanka J., Radil J.,Analysis of channel addition/removal response in all-optical gain-clamped cascade of lumped Raman fiber amplifiers, Journal of Lightwave Technology 22, 2271 (2004).
26. Karasek M., Kanka J., Honzatko P., Peterka P., Modelling of a pump-power-controlled gain-locking system for multi-pump wideband Raman fibre amplifiers,  IEE Proceedings-Optoelectronics 151,74 (2004).
27. Karasek M., Kanka J., Honzatko P., Peterka P., Time-domain simulation of power transients in Raman fibre amplifiers, International Journal of Numerical Modelling-Electronic Networks Devices and Fields 17, 165 (2004).
28. Karasek M., Kanka J., Honzatko P., Radil J., Channel addition-removal response in all-optical gain-clamped lumped Raman fiber amplifier, IEEE Photonics Technology Letters 16, 771 (2004).
29. Karasek M., Kanka J., Honzatko P., Radil J., Protection of surviving channels in all-optical gain-clamped lumped Raman fibre amplifier: modelling and experimentation, Optics Communications, 231, 309 (2004).    
30. Kasik I., Matejec V., Kanka J., Peterka P., Honzatko P., Langrova A., Using aerosol-based techniques and solution-doping for the fabrication of optical fibers for fiber lasers, Revue Roumaine de Chimie 47, 1241 (2002).
31. Honzatko P., Peterka P., Kanka J., Three- and four-wave model of modulation instability fibre laser, Journal of Optics A: Pure and Applied Optics 4,S135 (2002).
32. Honzatko P., Peterka P., Kanka, J., Modulational-instability σ-resonator fiber laser, Optics Letters, 26, 810 (2001).
33. Peterka P., Kanka J., Erbium-doped twin-core fibre narrow-band filter for fibre lasers, Optical and Quantum Electronics 33, 571 (2001).
34. Peterka P., Kasik I., Kanka J., Honzatko P., Matejec V., Hayer M., Twin-core fiber design and preparation for easy splicing, IEEE Photonics Technology Letters 12, 1656 (2000).
35. Hayer M., Matejec V., Berkova D., Kasik I., Kanka J., Peterka P., Honzatko P., Effect of high-temperature treatment on optical properties of silica films doped with Al2O3, P2O5 and rare-earth elements, Journal of Sol-Gel Science and Technology 19, 293 (2000).
36. Matějec V., Kašík I., Berková D., Hayer M., Kaňka J., Sol-Gel Fabrication and Properties of Silica Cores of Optical Fibers Doped with Yb3+, Er3+, Al2O3 or TiO2, Journal of Sol-Gel Science and Technology 13, 617 (1999).
37. Zhu Y., Handerek V.A., Kanka J., Rogers, A.J., Numerical simulation of a passive twin-core fibre nonlinear coupler ring laser, IEE Proceedings: Optoelectronics, 146, 204 (1999).
38. Kaňka J., Peterka P., Honzátko P., Matějec V., Kašík I., Er-doped twin-core fibre coupler as a saturable-absorber-based narrow-band filter for fibre lasers, Czechoslovak Journal of Physics, 49, 889 (1999).
39. Karásek M., Kaňka J., Numerical analysis of Yb3+-sensitised, Er3+-doped, fibre-ring laser, IEE Proceedings: Optoelectronics, 145, 133 (1998).
40. Kasik I., Matejec V., Kanka J., Honzatko P., Properties and fabrication of ytterbium-erbium co-doped silica fibres for high-power fibre lasers, Pure and Applied Optics (Print edition) (United Kingdom) 7, 457 (1998).
41. Kanka J., Numerical simulation of subpicosecond soliton formation in a nonlinear coupler laser, Optics Letters 19, 1873 (1994).
42. Kaňka, J., Modelling of attenuation properties of PCS fibres and its application to the backscattering measurement, Optical and Quantum Electronics, 19, 191 (1987).
43. P. Peterka, P. Honzátko, M. Karásek, J. Kaňka, I. Kašík and V. Matějec, Fiber lasers - principles and applications, Fine Mechanics and Optics 55:115 (2010), in Czech.
44. Kaňka J., Hora J., Measurement of Modulation Characteristic of Optical Fibre Phase Modulators,  Elektrotechnický Časopis 40, 353 (1989), in Czech.
45. Kucharski M., Dubský P., Kaňka J., Temperature Dependence of PCS Optical Fibers Attenuation, Elektrotechnický Časopis 39, 217 (1988), in Czech.
46. Kaňka J., Modelling of Attenuation Properties of Optical PCS Fibres and the Attenuation Measurement by Backscattering Technique, Elektrotechnický Časopis 37, 457 (1986), in Czech.
47. Kaňka J., Hora J., Optical fiber diagnostics using the backscattering method, Slaboproudý Obzor 44, 105 (1983), in Czech.
48. Srb I, Šnejdar V., Trkal V., Hřebačka P., Kaňka J., Vacek R., Fiber waveguides for signal transmission in the far infrared region, Slaboproudý Obzor 41, 289 (1980), in Czech.
49. Janta J., Kaňka J., Universal Dispersion Characteristics of Planar Inhomogeneous Waveguides, Elektrotechnický Časopis 30, 599 (1979), in Czech.

Conference papers:

1. Tian F., Kanka J., Li X., Du H., Exploration of higher-order mode coupling in long-period gratings for sensitive monitoring of polyelectrolyte self-assembly at nanoscale, Proceedings of SPIE Vol. 9098, 90980R (2014).
2. Tian F., Kanka J., Zou B., Chiang K.S., Du H., Effect of irradiation symmetry of CO2 laser on mode coupling in long-period gratings inscribed in photonic crystal fiber, Proceedings of SPIE Vol. 8722, 87220I (2013).
3. Kanka  J., High-sensitivity high-resolution refractometry with twin turn-around-point long-period gratings in a photonic crystal fiber, Proceedings of SPIE Vol. 8775, 87750Q (2013) .
4. Koška P., Kaňka J., Theoretical study of optical switching in multiple core nonlinear microstructured optical fibers, Proceedings of SPIE Vol. 8697, 86971H (2013).
5. Kanka  J., Long-period gratings in photonic crystal fibers operating near the phase-matching turning point for evanescent chemical and biochemical sensing, Proceedings of SPIE Vol. 8370, 837003 (2012).
6. Kanka J., Design of turn-around-point long-period gratings in Ge-doped photonic crystal fibers for evanescent sensing, Proceedings of SPIE Vol. 8426, 84260A (2012).
7. Kanka  J., Dispersion optimization of photonic crystal fiber long-period gratings for a high-sensitivity refractive index sensing, Proceedings of SPIE Vol. 8073, 80732U (2011). 
8. Martan T., Aubrecht J., Podrazký O., Kašík I., Matějec V., Kanka J., Microstructure optical fibres for detection of gaseous analytes", Proceedings of SPIE Vol. 8073, 80731O (2011).  
9. Kanka  J., Optimal design of broadband photonic crystal fibre long-period gratings for evanescent absorption sensing, Proceedings of SPIE Vol. 7714, 77140N (2010).
10. He Z., Zhu Y., Kaňka J., Trevor D.J., Du H., Mode coupling in photonic crystal fiber using long-period gratings for enhanced overlap of evanescent field, Proceedings of SPIE Vol. 7677, 767711 (2010). 
11. Kanka  J., Dispersion optimization of nonlinear glass photonic crystal fibers and impact of fabrication tolerances on their telecom nonlinear applications performance, Proceedings of SPIE Vol. 7357, 73570Q (2009).
12. Kanka J., Zhu Y., He Z., Du H., Design of photonic crystal fiber long-period grating refractive index sensor, Proceedings of SPIE Vol. 7316, 73161D (2009).
13. Martan, T., Kanka, J., Kasik, I., Matejec, V., Tapered optical fibres for sensing, Proceedings of SPIE Vol. 7138, 71380Z (2008).
14. Kanka  J., Design of microstructured optical fibres made from highly nonlinear glasses for FWM-based telecom applications", Proceedings of SPIE Vol. 6990, 69900E (2008).
15. T. Martan, I. Kašík, O. Podrazký, J. Mrázek, M. Pospíšilová, J. Aubrecht, V. Matějec, J. Kaňka : „Local Detection of pH Using Optical Fibre Probes“, Proc. 6th Journees Maghreb-Europe, Les Materiaux et Leurs Applications aux Dispositifs Capteurs (MADICA), Enset-Rabat, 30.10.2008- 1.11.2008 A53-1 – A53-2.
16. F. Todorov, M. Chomat, D. Berkova, V. Matejec, I. Kasik, J. Kanka, J. Dunovsky : „Long-period gratings in a microstructure fiber with a planar array of air holes for directional bend sensing“, “, 6th Journees Maghreb-Europe, Les Materiaux et Leurs Applications aux Dispositifs Capteurs (Madica), Enset-Rabat, Morocco 30.10.2008- 1.11.2008, B13.
17. T. Martan, O. Podrazký, I. Kašík, M. Pospíšilová, V. Matějec, J. Kaňka: “Fibre – Optic Local Detection of pH“, 2008, Dublin, 30.3.2008-2.4.2008.
18. Peterka P., Kašík I., Matčjec V., Karásek M., Kaňka J., Honzátko P., Kubeček V., Amplifier performance of double-clad Er/Yb-doped fiber with cross-section tailored for direct splicing to the pump and signal fibers, OFC/NFOEC 2007 - Optical Fiber Communication and the National Fiber Optic Engineers Conference 2007, art. no. 4348396 (2007). 
19. He Z., Zhu Y., Kaňka J., Du H., Numerical analysis and experimental investigation of highly sensitive photonic crystal fiber long-period grating refractive index sensor, ", Proceedings of SPIE Vol. 6767, 67670E (2007).
20. Matejec V., Mrazek J., Podrazky O., Kanka J., Kasik I., Pospisilova M., Microstructure fibers for sensing gaseous hydrocarbons", Proceedings of SPIE Vol. 6585, 658511 (2007).
21. Martan T., Honzátko P., Kaňka, J., Novotný, K., Workplace for manufacturing devices based on optical fiber tapers, Proceedings of SPIE Vol. 6609, 66090K (2007).
22. Kaňka J. Karasek M., Parametric Amplification and Multiple Wavelength Conversion in HNLF: Experimentation and Modelling, COST291/GBOU ONNA workshop on Design of Next Generation Optical Networks: from the physical up to the network level perspective Gent, Belgium, February 6, 2006.
23. V. Matejec, J. Mrazek, M. Hayer, O. Podrazky, J. Kanka, I. Kasik, Sensitivity of microstructure fibers to gaseous oxygen, MADICA 2006. Recueil des Resumes.Monastir, 2006, 94.P.
24. Peterka, I. Kasik, V. Matejec, J. Kanka, M. Karasek, M. Hayer and J. Slanicka, "Novel Coupling Element for End-Pumping of Double-Clad Fibres", In Proc. of the 31st European Conference on Optical Communication ECOC'05, paper We4.P.127, Vol. 3, p. 755-756, Glasgow, Scotland, 25-29 September 2005.
25. P. Peterka, J. Kanka, P. Dymak, P. Honzatko, D. Kacik, J. Canning, W. Padden and K. Lyytikainen, "Measurement of Chromatic Dispersion in Specialty Fibres using Simple Setup of Interferometric Method", In Proc. of the 7th Optical Fibre measurement Conference OFMC'05, p. 45-49, 21-23 September 2005, Teddington, UK.
26. M. Chomat, V. Matejec, I. Kasik, J. Ctyroky, D. Berkova, M. Hayer, J. Kanka, F. Todorov, A. Jancarek,  Novel optical fibers for the inscription of long-period gratings, Proceedings of SPIE Vol. 6180, pp. 61800X.1-61800X.7  (2005)..
27. V. Matejec, M. Hayer, I. Kasik, J. Mrazek, P. Peterka, J. Kanka, P. Honzatko, Microstructure fibers for the development of fiber lasers, Proceedings of SPIE Vol. 6180, pp. 61800Z.1-61800Z.6  (2005)..
28. V. Matějec, J. Mrázek, M. Hayer, D. Berková, J. Kaňka, I. Kašík, Preparation and characterisation of xerogel detection layers applied in capillary or microstructure optical fibers, 13th International Workshop on SOL-GEL SCIENCE AND TECHNOLOGY, Los Angeles, USA, august 2005, p. 123,.
29. M. Chomát, D. Berková, V. Matějec, I. Kašík, J. Kaňka, R. Slavík, A. Jančárek, P. Bittner, Response f long-period gratings fabricated in s graded-index optical fibers to refractive-index changes, Recueil des Resumes Madica 2004, Tunis, Tunisia, November 2004, B51.
30. V. Matějec, J. Mrázek, M. Hayer, I. Kašík, P. Peterka, J. Kaňka, P. Honzátko, D. Berková, Microstructure fibers for gas detection, Recueil des Resumes Madica 2004, Tunis, Tunisia, November 2004, A33.
31. V. Matějec, J. Mrázek, M. Hayer, I. Kašík, P. Honzátko, P. Peterka, J. Kaňka, Effects of sol-gel modification of microstructure fibres on their sensitivity to gaseous toluene, Proc. 7th Europtrode, Madrid, April 2004, P83.
32. Karásek M., Kaňka J., Honzátko P., Radil J., All-Optical Gain-Controlled Lumped Raman Fibre Amplifier, In Proceedings of ONDM 2004, INTEC, 2004, pp.. 245–257.
33. V. Matějec, M. Hayer, I. Kašík, J. Mrázek, P. Honzátko, P. Peterka, J. Kaňka,   Evanescent-wave sensing of hydrocarbons by using microstructure fibers, Proc. 1st Int. Meeting on Applied Physics, Badajoz, October 2003, p.903.
34. P. Honzatko, P. Peterka and J. Kanka, "Three- and four-wave model of modulation instability fiber laser", (PDF). In Proc. 2nd EOS topical meeting on Electromagnetic Optics, 26-30 August 2001, Paris, paper WeO6, p. 108..
35. V. Matějec, I. Kašík, M. Hayer, J. Kaňka, P. Peterka , Fabrication and characterisation of microstructure fibers with silica cores, Proc. Photonics 2002 - Photonics, devices and systems /4/, Prague, May 2002, 115.
36. Peterka P., Honzatko P., Kanka J., Matejec V., Kasik I., Generation of high-repetition-rate pulse trains in a fiber laser through a twin-core fiber, Proceedings of SPIE Vol. 5036, pp.376-381 (2003).
37. P. Peterka, P. Honzatko, J. Kanka, V. Matejec and I. Kasik. "Measurement of intermodal dispersion in a twin-core fibre filter". In Conf. Digest of the 6th Optical Fibre Measurement Conf. OFMC'01, Cambridge, United Kingdom, 2001, pp. 221-224..
38. J. Kanka, P. Honzatko and P. Peterka. "Characterisation of a modulation instability sigma-cavity fibre laser". In Conf. Digest of the 6th Optical Fibre Measurement Conf. OFMC'01, Cambridge, United Kingdom, 2001, pp. 255-258.
39. J. Kanka, P. Honzatko and P. Peterka. "Stationary pulse train generation through modulational-instability in a sigma-cavity fiber laser". presented in OSA Annual Meeting, Long Beach, California, 14-18 October 2001, paper MZ2.
40. P. Peterka and J. Kanka. "Erbium-doped twin-core fibre narrow-band filter for fibre lasers", In Proc. Workshop on Optical Waveguide Theory and Numerical Modelling, Prague, May 26 and 27, 2000.  
41. J. Kanka, P. Peterka, P. Honzatko, V. Matejec, I. Kasik, "Performance characterisation of twin-core fibre filter in fibre laser", in Proc. of Optical Fibre Measurement conf. OFMC`99, Nantes, France, 1999, p.190-193.
42. Kanka J., Honzatko P., Peterka P., Kasik I., Matejec V., Line narrowing and wavelength stabilization in a tunable Er-Yb fiber ring laser with an Er twin-core fiber, Proceedings of SPIE Vol. 4016, pp.315-319 (1999).
43. Peterka P., Kanka J., Karasek M., Honzatko P., Abdelmalek F., Characterization and modeling of Er/Yb-codoped fibers, Proceedings of SPIE Vol. 4016, pp.282-287 (1999).
44. J. Kaňka, P. Peterka, P. Honzátko, V. Matějec, I. Kašík,  Performance and characterisation of twin-core fibre filter in fibre laser, Proc. OFMC’99, Nantes, 1999.
45. M. Hayer, V. Matějec, D. Berková, I. Kašík, J. Kaňka, Effect of high-temperature treatment on optical properties of silica film doped with Al2O3, P2O5 and rare-earth elements, Proc. 10th Int. Workshop on Glasses, Ceramics, Hybrids and Nanocomposites from Gels, Tokyo, September 1999.
46. J. Kanka, P. Peterka, P. Honzatko, V. Matejec, I. Kasik, "Erbium-doped twin-core fibre as a saturable-absorber-based tracking narrow band filter for fibre lasers". In Czech-Chinesse workshop AMFO`98, Prague, 1998.
47. Y. Zhu, V. A. Handerek, A. J. Rogers, J. Kanka, Numerical simulation of low-pedestal soliton generation from a passive twin-core fibre nonlinear coupler ring laser, In Proceedings of  International Conference  on Telecommunications (ICT’98); Vol. 1; 348-352 (1998).
48. V. Matějec, I. Kašík, D. Berková, M. Hayer, J. Kaňka , Sol-gel fabrication and properties of silica cores of optical fibers doped with Yb3+, Er3+, Al2O3, or TiO2, Proc. 9th Int. Workshop on Glasses, Ceramics, Hybrids and Nanocomposites from Gels, Sheffield, September 1997, 183.
49. Kašík, V. Matějec, J. Kaňka, D. Berková , Fabrication and properties of materials for Er3+ doped Yb3+ sensitized high power lasers, Proc. Materials for Nonlinear Optics, Capri, July 1997, 154-155.
50. Y. Zhu, V. A. Handerek, A. J. Rogers, J. Kanka, Numerical simulation of a passive twin-core fibre coupler ring laser based on nonlinear optical switching, Colloquium on Optoelectronic Integration and Switching, Glasgow, U. K., 13 November 1997, paper No. 5
51. Kasik, I., Matejec V., Pospisilova M., Kanka J., Hora J., Silica optical fibers doped with Yb3+ and Er3+, Proceedings of SPIE Vol. 2777, pp.71-79 (1996).
52. Kanka J.,  Selfstarting and stability of a dual-core fibre subpicosecond soliton laser, In  Proc. of Workshop on Fiber Lasers, Porto, Portugal, 7 October 1996.
53. Kanka J., Jaskorzynska B. Analysis of an Active Nonlinear Coupler Laser”, in Photonics ́95, Vol. 2B, 1995 EOS Annual Meetings Digest Series,  pp. 389-392.(1995).
54. Kanka J., Modelling a dual-core fibre soliton laser,European  In Proc. “COST  Workshop 94” Optical Telecommunications, Nice, April 17-21, 1994, pp.141-144.
55. Kašík, V. Matějec, M. Pospíšilová, J. Kaňka, J. Hora,  Preparation and properties of Yb3+ sensitized Er3+ doped optical fibers, Proc. Photonics 95, Vol. 2A, Prague, August 1995, 261-264.
56. V. Matějec, I. Kašík, M. Pospíšilová, J. Kaňka, Preparation, structure and optical properties of Al doped silica glass core of optical fibres, Proc 6th Int. Conf. on the structure of Non-Cryst. Mat., Prague, August 1994, 161.
57. J. T. Lin, J. Kanka, L. Dong, D. McStay, A. J. Rogers, A Simultaneously Q-switched and Mode-Locked Fiber Laser, In Technical Digest of the European Quantum Electronics Conference and the 10th U.K. National Quantum Electronics Conference, Edinburgh,U.K., 27-30 August 1991, paperPLTu2.
58. J. Kanka, Modelling of attenuation properties and backscattering measurements of PCS fibres, In Polish National Symposium on Optical Fibres and their Applications, Warsaw, 1986.
59. J. Kanka, J. Hora, Multimode fibre diagnostics and attenuations measuruments using the backscattering method. In Proc.of Xth World Congress IMEKO, Prague 1985.