Pub Date : 2000-06-05DOI: 10.1109/ICTON.2000.874108
B. Jaskorzyńska, M. Swillo, S. Sergeyev
Parasitic energy transfer between excited ions has been widely recognized as gain limiting factor in high-concentration Er-doped fibre amplifiers. The energy transfer leads to upconversion of the excitation which for randomly distributed (not clustered) ions is called homogeneous upconversion (HUG). For optimizing design of rare-earth doped devices it is important to properly model HUC.
{"title":"Homogeneous upconversion in Er-doped waveguides","authors":"B. Jaskorzyńska, M. Swillo, S. Sergeyev","doi":"10.1109/ICTON.2000.874108","DOIUrl":"https://doi.org/10.1109/ICTON.2000.874108","url":null,"abstract":"Parasitic energy transfer between excited ions has been widely recognized as gain limiting factor in high-concentration Er-doped fibre amplifiers. The energy transfer leads to upconversion of the excitation which for randomly distributed (not clustered) ions is called homogeneous upconversion (HUG). For optimizing design of rare-earth doped devices it is important to properly model HUC.","PeriodicalId":314041,"journal":{"name":"2000 2nd International Conference on Transparent Optical Networks. Conference Proceedings (Cat. No.00EX408)","volume":"11 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2000-06-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"127186600","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2000-06-05DOI: 10.1109/ICTON.2000.874143
P. Chmela, O. Samek, M. Minarcik
The theoretically predicted self-organized parametric down conversion in optical fibers was experimentally demonstrated for the first time and a permanent /spl chi//sup (2)/ grating in the conditioned optical fiber was identified.
{"title":"/spl chi//sup (2)/ grating formation in optical fibers due to the self-organized parametric down conversion","authors":"P. Chmela, O. Samek, M. Minarcik","doi":"10.1109/ICTON.2000.874143","DOIUrl":"https://doi.org/10.1109/ICTON.2000.874143","url":null,"abstract":"The theoretically predicted self-organized parametric down conversion in optical fibers was experimentally demonstrated for the first time and a permanent /spl chi//sup (2)/ grating in the conditioned optical fiber was identified.","PeriodicalId":314041,"journal":{"name":"2000 2nd International Conference on Transparent Optical Networks. Conference Proceedings (Cat. No.00EX408)","volume":"2 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2000-06-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"126962092","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2000-06-05DOI: 10.1109/ICTON.2000.874158
P. Ivanov, I. Sukhoivanov
An extended rate equation model with the consideration of non-uniform carrier distribution and temperature effects in the vertical cavity surface emitting lasers is developed. The carrier distribution characteristics and temperature field in the contact and active layer regions are obtained.
{"title":"Calculation of temperature characteristics in the oxide confined VCSEL including non-uniform carrier distribution","authors":"P. Ivanov, I. Sukhoivanov","doi":"10.1109/ICTON.2000.874158","DOIUrl":"https://doi.org/10.1109/ICTON.2000.874158","url":null,"abstract":"An extended rate equation model with the consideration of non-uniform carrier distribution and temperature effects in the vertical cavity surface emitting lasers is developed. The carrier distribution characteristics and temperature field in the contact and active layer regions are obtained.","PeriodicalId":314041,"journal":{"name":"2000 2nd International Conference on Transparent Optical Networks. Conference Proceedings (Cat. No.00EX408)","volume":"31 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2000-06-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"121225155","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2000-06-05DOI: 10.1109/ICTON.2000.874101
Y. Sasaki
Recent progress in research on optical fiber devices, especially optical fiber couplers and optical fiber grating couplers are reviewed. Add-drop multiplexer operation by optical fiber grating couplers has recently attracted attention, because of its inherent low-insertion loss, simple implementation, and potential low-cost.
{"title":"Optical fiber devices","authors":"Y. Sasaki","doi":"10.1109/ICTON.2000.874101","DOIUrl":"https://doi.org/10.1109/ICTON.2000.874101","url":null,"abstract":"Recent progress in research on optical fiber devices, especially optical fiber couplers and optical fiber grating couplers are reviewed. Add-drop multiplexer operation by optical fiber grating couplers has recently attracted attention, because of its inherent low-insertion loss, simple implementation, and potential low-cost.","PeriodicalId":314041,"journal":{"name":"2000 2nd International Conference on Transparent Optical Networks. Conference Proceedings (Cat. No.00EX408)","volume":"112 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2000-06-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"122582520","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2000-06-05DOI: 10.1109/ICTON.2000.874117
G. Assanto
Summary form only given. Parametric waveguides with Bragg resonances allow the generation of gap-simultons, i.e. multi-color localized energy states propagating at low or even zero speed. Such solitonic pulses can be excited by a single frequency input, collide, slow-down and stop, enabling the realization of optically controlled delay lines and buffers. We review the theoretical/numerical progress in the field with specific reference to second harmonic generation.
{"title":"Gap solitons in three wave mixing nonlinear media","authors":"G. Assanto","doi":"10.1109/ICTON.2000.874117","DOIUrl":"https://doi.org/10.1109/ICTON.2000.874117","url":null,"abstract":"Summary form only given. Parametric waveguides with Bragg resonances allow the generation of gap-simultons, i.e. multi-color localized energy states propagating at low or even zero speed. Such solitonic pulses can be excited by a single frequency input, collide, slow-down and stop, enabling the realization of optically controlled delay lines and buffers. We review the theoretical/numerical progress in the field with specific reference to second harmonic generation.","PeriodicalId":314041,"journal":{"name":"2000 2nd International Conference on Transparent Optical Networks. Conference Proceedings (Cat. No.00EX408)","volume":"7 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2000-06-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"134477034","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2000-06-05DOI: 10.1109/ICTON.2000.874115
C. Sibilia, M. Bertolotti
Summary form only given. The considered structures are obtained by alternating two dielectric layers of different refractive indices such that the highest refractive index layers belong to some fractal set. The triadic Cantor and the Fibonacci sets are considered as examples. The transfer matrix method is used and some of its properties are presented. Then the nonlinear transmission properties are discussed for second order nonlinear polarization. An analysis on phase matching conditions is presented. Additional analysis is performed when the input level intensity is so high to induce third order nonlinear polarization into the dielectric media constituting the structures. Mesoscopic model is also introduced.
{"title":"Nonlinear optical propagation in periodical and quasiperiodical layered structures","authors":"C. Sibilia, M. Bertolotti","doi":"10.1109/ICTON.2000.874115","DOIUrl":"https://doi.org/10.1109/ICTON.2000.874115","url":null,"abstract":"Summary form only given. The considered structures are obtained by alternating two dielectric layers of different refractive indices such that the highest refractive index layers belong to some fractal set. The triadic Cantor and the Fibonacci sets are considered as examples. The transfer matrix method is used and some of its properties are presented. Then the nonlinear transmission properties are discussed for second order nonlinear polarization. An analysis on phase matching conditions is presented. Additional analysis is performed when the input level intensity is so high to induce third order nonlinear polarization into the dielectric media constituting the structures. Mesoscopic model is also introduced.","PeriodicalId":314041,"journal":{"name":"2000 2nd International Conference on Transparent Optical Networks. Conference Proceedings (Cat. No.00EX408)","volume":"5 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2000-06-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"132987268","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2000-06-05DOI: 10.1109/ICTON.2000.874110
Dmitrii Ushakov, V. Kononenko, I. Manak
It is theoretically shown that in two-section laser structures based on /spl delta/-doped superlattices a broadened spectral tuning is realised under special requirements for the parameters and excitation conditions in the gain and absorbing sections. The tuning occurs in the stationary operation, during transient process, and regular pulsation regime as well. In the GaAs /spl delta/-doped superlattice lasers, the tuning range covers of up to 60 nm in near infra-red.
{"title":"Regular oscillation in two-section laser structures based on /spl delta/-doped superlattices","authors":"Dmitrii Ushakov, V. Kononenko, I. Manak","doi":"10.1109/ICTON.2000.874110","DOIUrl":"https://doi.org/10.1109/ICTON.2000.874110","url":null,"abstract":"It is theoretically shown that in two-section laser structures based on /spl delta/-doped superlattices a broadened spectral tuning is realised under special requirements for the parameters and excitation conditions in the gain and absorbing sections. The tuning occurs in the stationary operation, during transient process, and regular pulsation regime as well. In the GaAs /spl delta/-doped superlattice lasers, the tuning range covers of up to 60 nm in near infra-red.","PeriodicalId":314041,"journal":{"name":"2000 2nd International Conference on Transparent Optical Networks. Conference Proceedings (Cat. No.00EX408)","volume":"21 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2000-06-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"116941685","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2000-06-05DOI: 10.1109/ICTON.2000.874109
S. Sujecki, T. Benson, P. Sewell, A. Majewski
The beam propagation method implemented in a tapered co-ordinate system is used to analyse a nonlinear taper structure. The results obtained are compared with the ones computed using the standard beam propagation algorithm in the rectangular co-ordinate system. In all analysed cases the novel approach: the tapered beam propagation method, allows calculation of the field distribution and the field overlap at the end of the structure faster and using less computer memory.
{"title":"Beam propagation analysis of non-linear tapers","authors":"S. Sujecki, T. Benson, P. Sewell, A. Majewski","doi":"10.1109/ICTON.2000.874109","DOIUrl":"https://doi.org/10.1109/ICTON.2000.874109","url":null,"abstract":"The beam propagation method implemented in a tapered co-ordinate system is used to analyse a nonlinear taper structure. The results obtained are compared with the ones computed using the standard beam propagation algorithm in the rectangular co-ordinate system. In all analysed cases the novel approach: the tapered beam propagation method, allows calculation of the field distribution and the field overlap at the end of the structure faster and using less computer memory.","PeriodicalId":314041,"journal":{"name":"2000 2nd International Conference on Transparent Optical Networks. Conference Proceedings (Cat. No.00EX408)","volume":"59 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2000-06-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"121207081","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2000-06-05DOI: 10.1109/ICTON.2000.874150
Claudio Vinegoni, M. Wegmuller, N. Gisin
We present an elegant passive stabilization method for ultrafast devices employing nonlinear polarization rotation (NPR) in optical fibers. The fluctuations in the linear birefringence, including temperature and pressure induced ones, that affect the measurement of the NPR are successfully removed in a passive way by using a double pass of the fiber under test with a Faraday mirror at the end of the fiber. This method provides excellent switching stability over long term period when applied to a wavelength converter.
{"title":"Implementation of a Faraday mirror stabilization scheme for all optical switching in a standard telecom fiber","authors":"Claudio Vinegoni, M. Wegmuller, N. Gisin","doi":"10.1109/ICTON.2000.874150","DOIUrl":"https://doi.org/10.1109/ICTON.2000.874150","url":null,"abstract":"We present an elegant passive stabilization method for ultrafast devices employing nonlinear polarization rotation (NPR) in optical fibers. The fluctuations in the linear birefringence, including temperature and pressure induced ones, that affect the measurement of the NPR are successfully removed in a passive way by using a double pass of the fiber under test with a Faraday mirror at the end of the fiber. This method provides excellent switching stability over long term period when applied to a wavelength converter.","PeriodicalId":314041,"journal":{"name":"2000 2nd International Conference on Transparent Optical Networks. Conference Proceedings (Cat. No.00EX408)","volume":"9 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2000-06-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"125142100","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2000-06-05DOI: 10.1109/ICTON.2000.874112
A. Nerukh, I. Scherbatko, M. Marciniak
The description and understanding of the propagating of THz pulses in optical systems has recently attracted considerable research efforts. Common methods to generate sub-picosecond, single-cycle electromagnetic pulses evoke great interest and there is an excitation of a biased semiconductor or an electro-optic crystal with a femtosecond light pulse among them. It needs a detailed investigation of the propagation properties of ultrashort pulse beams scattered by interfaces with time-varying properties. In this paper we obtain integral operators that describe in time domain in the 3-D case an interaction of complex electromagnetic signals with the flat interface between dielectric media when the medium in one of the two halfspaces changes its permittivity and acquires a conductivity.
{"title":"Reflection and transmission of a light on a dielectric boundary in a time domain","authors":"A. Nerukh, I. Scherbatko, M. Marciniak","doi":"10.1109/ICTON.2000.874112","DOIUrl":"https://doi.org/10.1109/ICTON.2000.874112","url":null,"abstract":"The description and understanding of the propagating of THz pulses in optical systems has recently attracted considerable research efforts. Common methods to generate sub-picosecond, single-cycle electromagnetic pulses evoke great interest and there is an excitation of a biased semiconductor or an electro-optic crystal with a femtosecond light pulse among them. It needs a detailed investigation of the propagation properties of ultrashort pulse beams scattered by interfaces with time-varying properties. In this paper we obtain integral operators that describe in time domain in the 3-D case an interaction of complex electromagnetic signals with the flat interface between dielectric media when the medium in one of the two halfspaces changes its permittivity and acquires a conductivity.","PeriodicalId":314041,"journal":{"name":"2000 2nd International Conference on Transparent Optical Networks. Conference Proceedings (Cat. No.00EX408)","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2000-06-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"129815640","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
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