Pub Date : 2002-03-17DOI: 10.1109/OFC.2002.1036287
S. Choi, W. Shin, K. Oh
We have proposed a novel higher-order-mode dispersion compensating technique based on a hollow optical fiber mode converter. The mode converter shows the efficiency of more than 87% in conversion of the LP/sub 01/ mode of single mode fibre (SMF) to the LP/sub 02/ mode in a ring-core dispersion compensated fibre (DCF). Design parameters for the HOF and the mating ring-core DCF have been optimized, resulting in a very large average dispersion of -750 ps/nm/km in the C-band. Compensation of dispersion within 1 ps/nm/km, and dispersion slope within the range of -0.09 to 0.3 ps/nm/sup 2//km was estimated using 1.31 km of DCF for 60 km long SMF in the entire C-band.
{"title":"Higher-order-mode dispersion compensation technique based on mode converter using hollow optical fiber","authors":"S. Choi, W. Shin, K. Oh","doi":"10.1109/OFC.2002.1036287","DOIUrl":"https://doi.org/10.1109/OFC.2002.1036287","url":null,"abstract":"We have proposed a novel higher-order-mode dispersion compensating technique based on a hollow optical fiber mode converter. The mode converter shows the efficiency of more than 87% in conversion of the LP/sub 01/ mode of single mode fibre (SMF) to the LP/sub 02/ mode in a ring-core dispersion compensated fibre (DCF). Design parameters for the HOF and the mating ring-core DCF have been optimized, resulting in a very large average dispersion of -750 ps/nm/km in the C-band. Compensation of dispersion within 1 ps/nm/km, and dispersion slope within the range of -0.09 to 0.3 ps/nm/sup 2//km was estimated using 1.31 km of DCF for 60 km long SMF in the entire C-band.","PeriodicalId":347952,"journal":{"name":"Optical Fiber Communication Conference and Exhibit","volume":"13 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2002-03-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"123540128","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 : 2002-03-17DOI: 10.1109/OFC.2002.1036758
K. Hansen, J. R. Jensen, C. Jacobsen, H. Simonsen, J. Broeng, P. Skovgaard, A. Petersson
We demonstrate, for the first time, a highly nonlinear polarization maintaining photonic crystal fiber with zero dispersion at 1.55 /spl mu/m, nonlinear coefficient of 20 (Wkm)/sup -1/ and splice loss to standard technology fiber of 0.3 dB.
{"title":"Highly nonlinear photonic crystal fiber with zero-dispersion at 1.55 /spl mu/m","authors":"K. Hansen, J. R. Jensen, C. Jacobsen, H. Simonsen, J. Broeng, P. Skovgaard, A. Petersson","doi":"10.1109/OFC.2002.1036758","DOIUrl":"https://doi.org/10.1109/OFC.2002.1036758","url":null,"abstract":"We demonstrate, for the first time, a highly nonlinear polarization maintaining photonic crystal fiber with zero dispersion at 1.55 /spl mu/m, nonlinear coefficient of 20 (Wkm)/sup -1/ and splice loss to standard technology fiber of 0.3 dB.","PeriodicalId":347952,"journal":{"name":"Optical Fiber Communication Conference and Exhibit","volume":"93 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2002-03-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"121936076","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 : 2002-03-17DOI: 10.1109/OFC.2002.1036435
P. Kim, Jaewoo Park, Jong-Hyun Park, N. Park
We proposed and experimentally demonstrated a novel, practical algorithm for the measurement of multiple pumps evolution by using modified OTDR technique. With measured pump evolution profile and only one reference measurement data, the gain spectrum could be analytically calculated for any pump magnitude combination sets. The discrepancy between experimentally measured gain spectrum and calculated one was below 0.5 dB over entire gain bandwidth.
{"title":"Performance optimization of distributed Raman amplifier using optical pump time domain reflectometry","authors":"P. Kim, Jaewoo Park, Jong-Hyun Park, N. Park","doi":"10.1109/OFC.2002.1036435","DOIUrl":"https://doi.org/10.1109/OFC.2002.1036435","url":null,"abstract":"We proposed and experimentally demonstrated a novel, practical algorithm for the measurement of multiple pumps evolution by using modified OTDR technique. With measured pump evolution profile and only one reference measurement data, the gain spectrum could be analytically calculated for any pump magnitude combination sets. The discrepancy between experimentally measured gain spectrum and calculated one was below 0.5 dB over entire gain bandwidth.","PeriodicalId":347952,"journal":{"name":"Optical Fiber Communication Conference and Exhibit","volume":"12 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2002-03-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"124066507","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 : 2002-03-17DOI: 10.1109/OFC.2002.1036578
D. Neilson, D. Greywall, S. Chandrasekhar, L. Buhl, H. Tang, L. Ko, N. Basavanhally, F. Pardo, D. Ramsey, J. Weld, Y. Low, J. Prybyla, R. Scotti, A. Gasparyan, M. Maueis, S. Arney, S. P. O'neill, C. Pai, D.H. Malkani, M. Meyers, N. Saluzzi, S.H. Oh, O. D. Lopez, G. Bogart, F. Klemens, M. Luo, J. Liu, K. Teffeau, A. Ramirez, K. Werder, J. Griffith, C. Frye, M. Kunnavakkam, S. T. Stanton, J. A. Liddle, H. Soh, T.C. Lee, O. Nalamasu, K. C. Nguyen
We have demonstrated a channelized micro-mechanical filter with 5 dB insertion loss and high extinction suitable for use as a channelized equalizing filter. The pass bands have been demonstrated to be sufficiently wide to permit its use with 40 Gb/s CSRZ signals.
{"title":"High-dynamic range channelized MEMS equalizing filter","authors":"D. Neilson, D. Greywall, S. Chandrasekhar, L. Buhl, H. Tang, L. Ko, N. Basavanhally, F. Pardo, D. Ramsey, J. Weld, Y. Low, J. Prybyla, R. Scotti, A. Gasparyan, M. Maueis, S. Arney, S. P. O'neill, C. Pai, D.H. Malkani, M. Meyers, N. Saluzzi, S.H. Oh, O. D. Lopez, G. Bogart, F. Klemens, M. Luo, J. Liu, K. Teffeau, A. Ramirez, K. Werder, J. Griffith, C. Frye, M. Kunnavakkam, S. T. Stanton, J. A. Liddle, H. Soh, T.C. Lee, O. Nalamasu, K. C. Nguyen","doi":"10.1109/OFC.2002.1036578","DOIUrl":"https://doi.org/10.1109/OFC.2002.1036578","url":null,"abstract":"We have demonstrated a channelized micro-mechanical filter with 5 dB insertion loss and high extinction suitable for use as a channelized equalizing filter. The pass bands have been demonstrated to be sufficiently wide to permit its use with 40 Gb/s CSRZ signals.","PeriodicalId":347952,"journal":{"name":"Optical Fiber Communication Conference and Exhibit","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2002-03-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"125986649","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 : 2002-03-17DOI: 10.1109/OFC.2002.1036560
K. Kikuchi, K. Taira, N. Sugimoto
We have developed a highly nonlinear fiber made of the Bi/sub 2/O/sub 3/-based glass. From four-wave mixing measurements, the nonlinear coefficient is estimated to be /spl gamma/ = 64.2 W/sup -1/ km/sup -1/. The propagation loss is less than 0.8 dB/m, and it can be fusion-spliced to SiO/sub 2/ fibers. These characteristics are very attractive for applications of the Bi-fiber to all-optical signal processing devices.
{"title":"Highly-nonlinear bismuth oxide-based glass fibers for all-optical signal processing","authors":"K. Kikuchi, K. Taira, N. Sugimoto","doi":"10.1109/OFC.2002.1036560","DOIUrl":"https://doi.org/10.1109/OFC.2002.1036560","url":null,"abstract":"We have developed a highly nonlinear fiber made of the Bi/sub 2/O/sub 3/-based glass. From four-wave mixing measurements, the nonlinear coefficient is estimated to be /spl gamma/ = 64.2 W/sup -1/ km/sup -1/. The propagation loss is less than 0.8 dB/m, and it can be fusion-spliced to SiO/sub 2/ fibers. These characteristics are very attractive for applications of the Bi-fiber to all-optical signal processing devices.","PeriodicalId":347952,"journal":{"name":"Optical Fiber Communication Conference and Exhibit","volume":"2 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2002-03-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"126120523","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 : 2002-03-17DOI: 10.1109/OFC.2002.1036315
B. Ganguly, Vincent W. S. Chan
Optical flow switching (OFS) in large-scale wavelength division multiplexing (WDM) networks is an emerging technology enabled by rapid advancement in optical switch and transceiver technology. It is a connection oriented service involving dynamic creation of relatively short (one second or less) duration optical lightpaths between users that desire a high-rate, high quality of service (QoS) connection. A flow switched transaction bypasses electronic routers along its path alleviating the potential load on the routers. This provides a twofold benefit. We have designed and implemented OFS in the NGI ONRAMP testbed. NGI ONRAMP is an acronym for next generation Internet optical network for regional access using multi-wavelength protocols. It is an optical access area network deployed in the metropolitan Boston area. For OFS in such large-scale networks, a critical issue is that of connection setup. In ONRAMP, we have taken the view that it is vital for the network management and control system to have reliable network state information to make decisions about routing and wavelength assignment.
{"title":"A scheduled approach to optical flow switching in the ONRAMP optical access network testbed","authors":"B. Ganguly, Vincent W. S. Chan","doi":"10.1109/OFC.2002.1036315","DOIUrl":"https://doi.org/10.1109/OFC.2002.1036315","url":null,"abstract":"Optical flow switching (OFS) in large-scale wavelength division multiplexing (WDM) networks is an emerging technology enabled by rapid advancement in optical switch and transceiver technology. It is a connection oriented service involving dynamic creation of relatively short (one second or less) duration optical lightpaths between users that desire a high-rate, high quality of service (QoS) connection. A flow switched transaction bypasses electronic routers along its path alleviating the potential load on the routers. This provides a twofold benefit. We have designed and implemented OFS in the NGI ONRAMP testbed. NGI ONRAMP is an acronym for next generation Internet optical network for regional access using multi-wavelength protocols. It is an optical access area network deployed in the metropolitan Boston area. For OFS in such large-scale networks, a critical issue is that of connection setup. In ONRAMP, we have taken the view that it is vital for the network management and control system to have reliable network state information to make decisions about routing and wavelength assignment.","PeriodicalId":347952,"journal":{"name":"Optical Fiber Communication Conference and Exhibit","volume":"60 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2002-03-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"124679339","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 : 2002-03-17DOI: 10.1109/OFC.2002.1036632
J. Yamauchi, Y. Yamamoto, H. Nakano, M. Masuda, R. Tazawa, Y. Natsume, S. Kawaguchi
We have proposed a low insertion-loss arrayed waveguide grating (AWG) demultiplexer using phase adjustment elements called islands. The refractive index of the island is the same as that of the cladding. The configuration of the island is designed on the basis of a local phase-velocity principle. The demultiplexer optimized by the BPM shows an insertion loss of 1.3 dB using equally spaced islands. Further investigation shows that the use of chirped islands contributes to a low crosstalk level of less than -50 dB, without increasing the number of arrayed waveguides. We are now measuring the properties of the AWG demultiplexer with islands.
{"title":"A novel AWG demultiplexer composed of slabs with islands","authors":"J. Yamauchi, Y. Yamamoto, H. Nakano, M. Masuda, R. Tazawa, Y. Natsume, S. Kawaguchi","doi":"10.1109/OFC.2002.1036632","DOIUrl":"https://doi.org/10.1109/OFC.2002.1036632","url":null,"abstract":"We have proposed a low insertion-loss arrayed waveguide grating (AWG) demultiplexer using phase adjustment elements called islands. The refractive index of the island is the same as that of the cladding. The configuration of the island is designed on the basis of a local phase-velocity principle. The demultiplexer optimized by the BPM shows an insertion loss of 1.3 dB using equally spaced islands. Further investigation shows that the use of chirped islands contributes to a low crosstalk level of less than -50 dB, without increasing the number of arrayed waveguides. We are now measuring the properties of the AWG demultiplexer with islands.","PeriodicalId":347952,"journal":{"name":"Optical Fiber Communication Conference and Exhibit","volume":"10 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2002-03-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"124818656","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 : 2002-03-17DOI: 10.1109/OFC.2002.1036424
H. Bulow, S. L. Fogal, G. Biondini, W. Kath
We have demonstrated a simulation method that can efficiently generate not only large first- and second-order PMD, but also combinations where one of the two is large and the other is small. Furthermore, the use of importance sampling allows the accurate determination of the associated probability distribution, even for very rare events.
{"title":"Multiple importance sampling for first- and second-order PMD","authors":"H. Bulow, S. L. Fogal, G. Biondini, W. Kath","doi":"10.1109/OFC.2002.1036424","DOIUrl":"https://doi.org/10.1109/OFC.2002.1036424","url":null,"abstract":"We have demonstrated a simulation method that can efficiently generate not only large first- and second-order PMD, but also combinations where one of the two is large and the other is small. Furthermore, the use of importance sampling allows the accurate determination of the associated probability distribution, even for very rare events.","PeriodicalId":347952,"journal":{"name":"Optical Fiber Communication Conference and Exhibit","volume":"76 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2002-03-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"124858969","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 : 2002-03-17DOI: 10.1109/OFC.2002.1036683
P. Winzer, R. Essiambre, J. Bromage
We have expressed the dependence of ASE and DRB beat noises on the optical pulsewidths, optical and electrical filter bandwidths. Using short pulses increases immunity to DRB beat noise, while the use of narrower optical and/or electrical filters emphasizes the impact of DRB beat noise.
{"title":"Combined impact of double-Rayleigh backscatter and amplified spontaneous emission on receiver noise","authors":"P. Winzer, R. Essiambre, J. Bromage","doi":"10.1109/OFC.2002.1036683","DOIUrl":"https://doi.org/10.1109/OFC.2002.1036683","url":null,"abstract":"We have expressed the dependence of ASE and DRB beat noises on the optical pulsewidths, optical and electrical filter bandwidths. Using short pulses increases immunity to DRB beat noise, while the use of narrower optical and/or electrical filters emphasizes the impact of DRB beat noise.","PeriodicalId":347952,"journal":{"name":"Optical Fiber Communication Conference and Exhibit","volume":"36 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2002-03-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"129628606","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 : 2002-03-17DOI: 10.1109/OFC.2002.1036466
S. Bjornstad, M. Nord, D. Hjelme
We have demonstrated a novel transparent optical protection-switching scheme capable of switching with minimum, and even without, loss of data. The detection circuit has proven to trigger the optical switch when failure situations, like the unplugging of a fibre-connector or the fibre being exposed to abnormal environmental conditions, occurs. We believe this protection scheme will be attractive for networks where optical transparency or high level of protection security, like protection against security attacks, tampering or earthquakes, are desired.
{"title":"Transparent optical protection switching scheme based on detection of polarisation fluctuations","authors":"S. Bjornstad, M. Nord, D. Hjelme","doi":"10.1109/OFC.2002.1036466","DOIUrl":"https://doi.org/10.1109/OFC.2002.1036466","url":null,"abstract":"We have demonstrated a novel transparent optical protection-switching scheme capable of switching with minimum, and even without, loss of data. The detection circuit has proven to trigger the optical switch when failure situations, like the unplugging of a fibre-connector or the fibre being exposed to abnormal environmental conditions, occurs. We believe this protection scheme will be attractive for networks where optical transparency or high level of protection security, like protection against security attacks, tampering or earthquakes, are desired.","PeriodicalId":347952,"journal":{"name":"Optical Fiber Communication Conference and Exhibit","volume":"20 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2002-03-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"127237057","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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