Pub Date : 1994-07-06DOI: 10.1109/LEOSST.1994.700432
M. Hibbs-Brenner, E. Kalweit, R. Walterson, J. Lehman, J. Skogen, J. Nohava, P. Joslyn
{"title":"A Monolithic Integration Approach For VCSEL/GaAs FET Arrays","authors":"M. Hibbs-Brenner, E. Kalweit, R. Walterson, J. Lehman, J. Skogen, J. Nohava, P. Joslyn","doi":"10.1109/LEOSST.1994.700432","DOIUrl":"https://doi.org/10.1109/LEOSST.1994.700432","url":null,"abstract":"","PeriodicalId":379594,"journal":{"name":"Proceedings of IEE/LEOS Summer Topical Meetings: Integrated Optoelectronics","volume":"33 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1994-07-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"115466984","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 : 1994-07-06DOI: 10.1109/LEOSST.1994.700477
S. Kohda, M. Hirai, N. Yamauchi
{"title":"An Opto-electronic Neuron Module With Learning Capability Using An Integrated A-Si PD/ FLC-SLM Pair Array","authors":"S. Kohda, M. Hirai, N. Yamauchi","doi":"10.1109/LEOSST.1994.700477","DOIUrl":"https://doi.org/10.1109/LEOSST.1994.700477","url":null,"abstract":"","PeriodicalId":379594,"journal":{"name":"Proceedings of IEE/LEOS Summer Topical Meetings: Integrated Optoelectronics","volume":"43 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1994-07-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"120947506","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 : 1994-07-06DOI: 10.1109/LEOSST.1994.700516
B. Hemenway, M. Stevens
Optical networks using frequency division multiplexed (FDM) signals can be segmented by frequency and therefore allow the scalability of frequency re-use. When each frequency channel can be time-shared by many optical terminals such networks have the potential for greater network efficiency, scalability, and flexibility for multiple low-rate users than either FDM or TDM can provide alone [ 11. Optical terminals using rapidly-tunable components can maintain multiple logical connections by time-sharing the optical frequencies with other terminals. Fast-tuning transmitters using discretely-tuned distributed Bragg reflector (DBR) lasers offer excellent performance for such applications. Optical heterodyne receivers using rapidly-tunable DBR local oscillators are well-suited to such transmission. A heterodyne receiver can be more selective 121 and faster than conventional optomechanical devices such as piezo-driven Fabry-Perot filters. In this work, 1.248 Gbps signals transmitted by a DBR laser on up to 20 optical frequencies visited i n random sequence are transmitted into an erbium-amplified optical network. The frequency-hopped signals are detected by a polarization-diversity heterodyne receiver with a wavelength-tunable local-oscillator (LO) laser. The signals, multiplexed both in time and optical frequency, are transmitted into time “slots” 2 p long with random-access frequency-switching times under 128 ns.
{"title":"Simultaneous TDM/FDM Using Rapidly-tunable Transmitters And Receivers For Multi-access Optical Networks","authors":"B. Hemenway, M. Stevens","doi":"10.1109/LEOSST.1994.700516","DOIUrl":"https://doi.org/10.1109/LEOSST.1994.700516","url":null,"abstract":"Optical networks using frequency division multiplexed (FDM) signals can be segmented by frequency and therefore allow the scalability of frequency re-use. When each frequency channel can be time-shared by many optical terminals such networks have the potential for greater network efficiency, scalability, and flexibility for multiple low-rate users than either FDM or TDM can provide alone [ 11. Optical terminals using rapidly-tunable components can maintain multiple logical connections by time-sharing the optical frequencies with other terminals. Fast-tuning transmitters using discretely-tuned distributed Bragg reflector (DBR) lasers offer excellent performance for such applications. Optical heterodyne receivers using rapidly-tunable DBR local oscillators are well-suited to such transmission. A heterodyne receiver can be more selective 121 and faster than conventional optomechanical devices such as piezo-driven Fabry-Perot filters. In this work, 1.248 Gbps signals transmitted by a DBR laser on up to 20 optical frequencies visited i n random sequence are transmitted into an erbium-amplified optical network. The frequency-hopped signals are detected by a polarization-diversity heterodyne receiver with a wavelength-tunable local-oscillator (LO) laser. The signals, multiplexed both in time and optical frequency, are transmitted into time “slots” 2 p long with random-access frequency-switching times under 128 ns.","PeriodicalId":379594,"journal":{"name":"Proceedings of IEE/LEOS Summer Topical Meetings: Integrated Optoelectronics","volume":"119 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1994-07-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"116304172","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 : 1994-07-06DOI: 10.1109/LEOSST.1994.700523
C. R. Lima, P. Davies
{"title":"A New Fibre-based Plafform For Opto-electrenic Distribution Of Microwave Subcarriers Generated With A Gain-switched Semiconductor Laser","authors":"C. R. Lima, P. Davies","doi":"10.1109/LEOSST.1994.700523","DOIUrl":"https://doi.org/10.1109/LEOSST.1994.700523","url":null,"abstract":"","PeriodicalId":379594,"journal":{"name":"Proceedings of IEE/LEOS Summer Topical Meetings: Integrated Optoelectronics","volume":"15 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1994-07-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"122109250","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 : 1994-07-06DOI: 10.1109/LEOSST.1994.700513
A. Sneh, K. Johnson
One of the key components in future wavelength-division-multiplexed (WDM) networks is a tunable optical filter. Desirable characteristics for a commercially successful filter include: fast tuning speed, wide tuning range (30-40 nm for systems combining doped fiber amplifiers), low power consumption, and low cost. As an inherently inexpensive technology with low power consumption, liquid crystals (LCs) have the potential to fulfill all of the above req.uirements. Tunable LC Fabry-Perot (FP) filters have been demonstrated using nematic LCs as the active cavity material[l,2]. These filters have a tuning range of -100 nm, however their tuning speed ranges from a few milliseconds to hundreds of milliseconds [:3], which is too slow for packet-switched systems. Another class of LCs, chiral smectic A* LCs, have microsecond and submicrosecond switching speeds, allowing for three orders of magnitude faster tuning over nematic LC filters.
{"title":"High-speed Tunable Liquid Crystal Optical Filter For WDM Systems","authors":"A. Sneh, K. Johnson","doi":"10.1109/LEOSST.1994.700513","DOIUrl":"https://doi.org/10.1109/LEOSST.1994.700513","url":null,"abstract":"One of the key components in future wavelength-division-multiplexed (WDM) networks is a tunable optical filter. Desirable characteristics for a commercially successful filter include: fast tuning speed, wide tuning range (30-40 nm for systems combining doped fiber amplifiers), low power consumption, and low cost. As an inherently inexpensive technology with low power consumption, liquid crystals (LCs) have the potential to fulfill all of the above req.uirements. Tunable LC Fabry-Perot (FP) filters have been demonstrated using nematic LCs as the active cavity material[l,2]. These filters have a tuning range of -100 nm, however their tuning speed ranges from a few milliseconds to hundreds of milliseconds [:3], which is too slow for packet-switched systems. Another class of LCs, chiral smectic A* LCs, have microsecond and submicrosecond switching speeds, allowing for three orders of magnitude faster tuning over nematic LC filters.","PeriodicalId":379594,"journal":{"name":"Proceedings of IEE/LEOS Summer Topical Meetings: Integrated Optoelectronics","volume":"13 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1994-07-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"129052691","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 : 1994-07-06DOI: 10.1109/LEOSST.1994.700436
D. Kuchta, R. P. Schneider
{"title":"Large And Small Signal Modulation Properties Of RED VCSELs","authors":"D. Kuchta, R. P. Schneider","doi":"10.1109/LEOSST.1994.700436","DOIUrl":"https://doi.org/10.1109/LEOSST.1994.700436","url":null,"abstract":"","PeriodicalId":379594,"journal":{"name":"Proceedings of IEE/LEOS Summer Topical Meetings: Integrated Optoelectronics","volume":"44 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1994-07-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"129768291","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 : 1994-07-06DOI: 10.1109/LEOSST.1994.700411
H. Albrecht
9:50am 10:20am PHOTONIC INTEGRATED DEVICE RESEARCH AT SIEMENS Helmut Albrecht Siemens AG, Corporate Research and Development Otto-Hahn-Ring 6, D-8 1730 Miinchen, Germany Abstract The current status of photonic integrated device research at Siemens with respect to bidirectional transmission technology, photonic switching, and optical distribution systems is described and prospects for future work are given.
{"title":"Photonic Integrated Device Research At Siemens","authors":"H. Albrecht","doi":"10.1109/LEOSST.1994.700411","DOIUrl":"https://doi.org/10.1109/LEOSST.1994.700411","url":null,"abstract":"9:50am 10:20am PHOTONIC INTEGRATED DEVICE RESEARCH AT SIEMENS Helmut Albrecht Siemens AG, Corporate Research and Development Otto-Hahn-Ring 6, D-8 1730 Miinchen, Germany Abstract The current status of photonic integrated device research at Siemens with respect to bidirectional transmission technology, photonic switching, and optical distribution systems is described and prospects for future work are given.","PeriodicalId":379594,"journal":{"name":"Proceedings of IEE/LEOS Summer Topical Meetings: Integrated Optoelectronics","volume":"11 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1994-07-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"134575543","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 : 1994-07-06DOI: 10.1109/LEOSST.1994.700413
I. Ilić, R. Scannozzino, R. Osgood, J. Yardley, K. Beeson, M. Mcfarland, J. Schweyen
{"title":"Comparative Study Of Highly Multimode-input Star Coupler Design Using Ream Propagation And Ray Tracing Simulations","authors":"I. Ilić, R. Scannozzino, R. Osgood, J. Yardley, K. Beeson, M. Mcfarland, J. Schweyen","doi":"10.1109/LEOSST.1994.700413","DOIUrl":"https://doi.org/10.1109/LEOSST.1994.700413","url":null,"abstract":"","PeriodicalId":379594,"journal":{"name":"Proceedings of IEE/LEOS Summer Topical Meetings: Integrated Optoelectronics","volume":"20 3 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1994-07-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"123281449","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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