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":null,"pages":null},"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":null,"pages":null},"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":null,"pages":null},"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":null,"pages":null},"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":null,"pages":null},"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":null,"pages":null},"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":null,"pages":null},"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":null,"pages":null},"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}
Pub Date : 2009-12-01DOI: 10.1109/LEOS.2009.5343090
F. H. Koklu, M. Unlu
We demonstrate 325 nm lateral spatial resolution while imaging metal structures located inside the interconnect layer of a multilayered integrated circuit.
我们展示了325 nm的横向空间分辨率，同时成像位于多层集成电路互连层内的金属结构。
{"title":"Subsurface microscopy of multilayered integrated circuits","authors":"F. H. Koklu, M. Unlu","doi":"10.1109/LEOS.2009.5343090","DOIUrl":"https://doi.org/10.1109/LEOS.2009.5343090","url":null,"abstract":"We demonstrate 325 nm lateral spatial resolution while imaging metal structures located inside the interconnect layer of a multilayered integrated circuit.","PeriodicalId":269220,"journal":{"name":"2009 IEEE LEOS Annual Meeting Conference Proceedings","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2009-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"115522682","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.2009.5343209
Takuo Tanemura, T. Amemiya, K. Takeda, A. Higo, Y. Nakano
We propose and investigate a novel type of waveguide polarization converter, which is particularly suited for monolithic integration in InP photonic integrated circuits. Efficient mode conversion with 0.4-dB loss and 16.6-dB extinction is demonstrated numerically.
{"title":"Simple and compact inp polarization converter for polarization-multiplexed photonic integrated circuits","authors":"Takuo Tanemura, T. Amemiya, K. Takeda, A. Higo, Y. Nakano","doi":"10.1109/LEOS.2009.5343209","DOIUrl":"https://doi.org/10.1109/LEOS.2009.5343209","url":null,"abstract":"We propose and investigate a novel type of waveguide polarization converter, which is particularly suited for monolithic integration in InP photonic integrated circuits. Efficient mode conversion with 0.4-dB loss and 16.6-dB extinction is demonstrated numerically.","PeriodicalId":269220,"journal":{"name":"2009 IEEE LEOS Annual Meeting Conference Proceedings","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2009-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"115628801","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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