Pub Date : 2009-12-01DOI: 10.1109/LEOS.2009.5343419
J. Boavida, J. Morgado, C. Fernandes
An optimized distributed-coupling-coefficient distributed feedback laser is proposed. It simultaneously presents high-yield, high power efficiency and tight wavelength tolerance. So far, such improved performance was only achieved in lasers harder to manufacture.
{"title":"Easily feasible high-yield DFB Laser with high power efficiency and tight wavelength tolerance","authors":"J. Boavida, J. Morgado, C. Fernandes","doi":"10.1109/LEOS.2009.5343419","DOIUrl":"https://doi.org/10.1109/LEOS.2009.5343419","url":null,"abstract":"An optimized distributed-coupling-coefficient distributed feedback laser is proposed. It simultaneously presents high-yield, high power efficiency and tight wavelength tolerance. So far, such improved performance was only achieved in lasers harder to manufacture.","PeriodicalId":269220,"journal":{"name":"2009 IEEE LEOS Annual Meeting Conference Proceedings","volume":"18 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2009-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"121843192","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 : 2009-12-01DOI: 10.1109/LEOS.2009.5343138
B. Corcoran, C. Monat, M. Pelusi, C. Grillet, T. White, L. O’Faolain, T. Krauss, B. Eggleton, D. Moss
We report all-optical in-band OSNR monitoring at 160 Gb/s via slow-light enhanced third harmonic generation in a 2D silicon photonic crystal waveguide, achieving better performance than quadratic methods.
{"title":"Optical performance monitoring at 160Gb/s via slow light enhanced third-harmonic generation in silicon photonic crystal waveguides","authors":"B. Corcoran, C. Monat, M. Pelusi, C. Grillet, T. White, L. O’Faolain, T. Krauss, B. Eggleton, D. Moss","doi":"10.1109/LEOS.2009.5343138","DOIUrl":"https://doi.org/10.1109/LEOS.2009.5343138","url":null,"abstract":"We report all-optical in-band OSNR monitoring at 160 Gb/s via slow-light enhanced third harmonic generation in a 2D silicon photonic crystal waveguide, achieving better performance than quadratic methods.","PeriodicalId":269220,"journal":{"name":"2009 IEEE LEOS Annual Meeting Conference Proceedings","volume":"5 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2009-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"121357243","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 : 2009-12-01DOI: 10.1109/LEOS.2009.5343259
J. Readle, J. Eden
We demonstrate the first Cs atomic laser operating at 852.1 nm pumped by photoassociating transient Cs-rare gas pairs. This scheme is well suited for high-power diode pumping and indicates that collisional relaxation is not required.
{"title":"Lasing in Cs at 852.1 nm pumped by the photoexcitation of Cs-rare gas collision pairs","authors":"J. Readle, J. Eden","doi":"10.1109/LEOS.2009.5343259","DOIUrl":"https://doi.org/10.1109/LEOS.2009.5343259","url":null,"abstract":"We demonstrate the first Cs atomic laser operating at 852.1 nm pumped by photoassociating transient Cs-rare gas pairs. This scheme is well suited for high-power diode pumping and indicates that collisional relaxation is not required.","PeriodicalId":269220,"journal":{"name":"2009 IEEE LEOS Annual Meeting Conference Proceedings","volume":"71 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2009-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"121519405","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 : 2009-12-01DOI: 10.1109/LEOS.2009.5343484
J. Canning, S. Bandyopadhyay, M. Stevenson, P. Biswas, J. Fenton, R. Chakraborty, M. Åslund
Strong regenerated gratings with a maximum grating strength exceeding (40-50) dB are fabricated inside an optical fibre by bulk macro thermal processing ~900degC using a UV-laser seeded Bragg grating. Further annealing between 1000 and 1100degC leads to a stabilised grating ~18 dB in strength. This suffers no further degradation at 1100degC for the period monitored, over 4 hrs. To determine the potential resolution of this process, two regenerated complex profiles with no phase difference between seed and processed structures is reported. This opens the way for nano-engineering of materials using thermal processing and seed templates.
{"title":"Thermal preparation of highly stable glass periodic changes with nano-scale resolution using a laser-inscribed hydrogen loaded seed template","authors":"J. Canning, S. Bandyopadhyay, M. Stevenson, P. Biswas, J. Fenton, R. Chakraborty, M. Åslund","doi":"10.1109/LEOS.2009.5343484","DOIUrl":"https://doi.org/10.1109/LEOS.2009.5343484","url":null,"abstract":"Strong regenerated gratings with a maximum grating strength exceeding (40-50) dB are fabricated inside an optical fibre by bulk macro thermal processing ~900degC using a UV-laser seeded Bragg grating. Further annealing between 1000 and 1100degC leads to a stabilised grating ~18 dB in strength. This suffers no further degradation at 1100degC for the period monitored, over 4 hrs. To determine the potential resolution of this process, two regenerated complex profiles with no phase difference between seed and processed structures is reported. This opens the way for nano-engineering of materials using thermal processing and seed templates.","PeriodicalId":269220,"journal":{"name":"2009 IEEE LEOS Annual Meeting Conference Proceedings","volume":"30 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2009-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"125204124","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 : 2009-12-01DOI: 10.1109/LEOS.2009.5343084
Antje Schaarschmidt, A. Farah, Arun Aby, Amr S. Helmy
The effect of rapid thermal annealing on PEDOT-PSS films has been investigated by Raman spectroscopy. The analysis indicates the formation of an annealing-induced doping in the PEDOT structure, suggesting a modification of the electronic structure.
{"title":"Influence of rapid thermal annealing on the molecular structure of PEDOT-PSS thin films","authors":"Antje Schaarschmidt, A. Farah, Arun Aby, Amr S. Helmy","doi":"10.1109/LEOS.2009.5343084","DOIUrl":"https://doi.org/10.1109/LEOS.2009.5343084","url":null,"abstract":"The effect of rapid thermal annealing on PEDOT-PSS films has been investigated by Raman spectroscopy. The analysis indicates the formation of an annealing-induced doping in the PEDOT structure, suggesting a modification of the electronic structure.","PeriodicalId":269220,"journal":{"name":"2009 IEEE LEOS Annual Meeting Conference Proceedings","volume":"59 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2009-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"125321357","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 : 2009-12-01DOI: 10.1109/LEOS.2009.5343290
L. Tan, W. Soong, S. Tan, Y. L. Goh, M. Steer, J. Ng, J. David, I. Marko, J. Chamings, J. Allam, S. Sweeney, A. Adams
In order to extend the photo response of GaAs to optical telecommunication wavelengths, In and N can be incorporated into GaAs to yield a perfect lattice match of InxGa1-xAs1-yNy with GaAs with a bandgap that strongly decreases with increasing N composition. The potential usage of such a material as photodetectors and photovoltaic applications has been reported.In this work, we investigate the dark current mechanisms in the InxGa1-xAs1-yNy material.
{"title":"Dark current mechanisms in InxGa1-xAs1-yNy","authors":"L. Tan, W. Soong, S. Tan, Y. L. Goh, M. Steer, J. Ng, J. David, I. Marko, J. Chamings, J. Allam, S. Sweeney, A. Adams","doi":"10.1109/LEOS.2009.5343290","DOIUrl":"https://doi.org/10.1109/LEOS.2009.5343290","url":null,"abstract":"In order to extend the photo response of GaAs to optical telecommunication wavelengths, In and N can be incorporated into GaAs to yield a perfect lattice match of In<sub>x</sub>Ga<sub>1-x</sub>As<sub>1-y</sub>N<sub>y</sub> with GaAs with a bandgap that strongly decreases with increasing N composition. The potential usage of such a material as photodetectors and photovoltaic applications has been reported.In this work, we investigate the dark current mechanisms in the In<sub>x</sub>Ga<sub>1-x</sub>As<sub>1-y</sub>N<sub>y</sub> material.","PeriodicalId":269220,"journal":{"name":"2009 IEEE LEOS Annual Meeting Conference Proceedings","volume":"49 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2009-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"131233861","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 : 2009-12-01DOI: 10.1109/LEOS.2009.5343206
B. Tilma, E. Bente, R. Notzel, J. Kotani, X. Leijtens, M. Smit
We have realized a set of electro-optically controlled tunable arrayed waveguide gratings and present wavelength dependent calibration results for its tuning. These filters are designed to be used in a monolithically integrated tunable laser.
{"title":"Integrated tunable optical filters on InP for continuously tunable lasers","authors":"B. Tilma, E. Bente, R. Notzel, J. Kotani, X. Leijtens, M. Smit","doi":"10.1109/LEOS.2009.5343206","DOIUrl":"https://doi.org/10.1109/LEOS.2009.5343206","url":null,"abstract":"We have realized a set of electro-optically controlled tunable arrayed waveguide gratings and present wavelength dependent calibration results for its tuning. These filters are designed to be used in a monolithically integrated tunable laser.","PeriodicalId":269220,"journal":{"name":"2009 IEEE LEOS Annual Meeting Conference Proceedings","volume":"6 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2009-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"127660555","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 : 2009-12-01DOI: 10.1109/LEOS.2009.5343388
T. Kuri, J. V. Vegas Olmos, H. Toda, K. Kitayama
Dense wavelength division multiplexing network of co-existing analog radio-over-fiber and digital fiber-to-the-home signals is presented, by focusing on enabling techniques including optical frequency interleaving, supercontinuum multi-wavelength light source, and photonic dynamic channel allocation.
{"title":"Wired and wireless integrated DWDM networks and millimeter-wave-band RoF technologies","authors":"T. Kuri, J. V. Vegas Olmos, H. Toda, K. Kitayama","doi":"10.1109/LEOS.2009.5343388","DOIUrl":"https://doi.org/10.1109/LEOS.2009.5343388","url":null,"abstract":"Dense wavelength division multiplexing network of co-existing analog radio-over-fiber and digital fiber-to-the-home signals is presented, by focusing on enabling techniques including optical frequency interleaving, supercontinuum multi-wavelength light source, and photonic dynamic channel allocation.","PeriodicalId":269220,"journal":{"name":"2009 IEEE LEOS Annual Meeting Conference Proceedings","volume":"66 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2009-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"133639061","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 : 2009-12-01DOI: 10.1109/LEOS.2009.5343389
M. Ran, Y. Ben-Ezra, B. Lembrikov
We investigate promising concepts, technologies and applications of Ultra-Wideband (UWB) Radio over optical fiber for future high data rate in-house applications. Part of these results obtained through EC funded project UROOF.
{"title":"Ultra-Wideband Radio-over-optical fiber: Concepts, technologies and applications","authors":"M. Ran, Y. Ben-Ezra, B. Lembrikov","doi":"10.1109/LEOS.2009.5343389","DOIUrl":"https://doi.org/10.1109/LEOS.2009.5343389","url":null,"abstract":"We investigate promising concepts, technologies and applications of Ultra-Wideband (UWB) Radio over optical fiber for future high data rate in-house applications. Part of these results obtained through EC funded project UROOF.","PeriodicalId":269220,"journal":{"name":"2009 IEEE LEOS Annual Meeting Conference Proceedings","volume":"74 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2009-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"133110716","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 : 2009-12-01DOI: 10.1109/LEOS.2009.5343471
Y.D. Liu, M. Sheen, Y. Hsu, H. Hsu, Y. Tsai, W. Cheng
A quantitative measurement using a 25.4-nm resolution system to online measure the postweld shift in laser-welded butterfly-type laser module package is demonstrated. The relative coupling efficiency can be regained up to an average of 88%.
{"title":"Online postweld shift measurement of butterfly-type laser module using a 25.4-nm resolution measurement system","authors":"Y.D. Liu, M. Sheen, Y. Hsu, H. Hsu, Y. Tsai, W. Cheng","doi":"10.1109/LEOS.2009.5343471","DOIUrl":"https://doi.org/10.1109/LEOS.2009.5343471","url":null,"abstract":"A quantitative measurement using a 25.4-nm resolution system to online measure the postweld shift in laser-welded butterfly-type laser module package is demonstrated. The relative coupling efficiency can be regained up to an average of 88%.","PeriodicalId":269220,"journal":{"name":"2009 IEEE LEOS Annual Meeting Conference Proceedings","volume":"49 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2009-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"134072794","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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