Pub Date : 1996-11-18DOI: 10.1109/LEOS.1996.565147
T. Matsuzono, J. Maeda, S. Kogoshi, H. Abe
We propose a novel configuration of a 2-channel WDM soliton transmission system which cancels collision-induced frequency shifts at each amplifier. We analyze its transmission characteristic numerically with regard to the varying group velocity dispersion (GVD), and predict that a 100 Gb/s/spl times/2 system utilizing 51 ps solitons amplified every 25 km maintains a BER of 10/sup -9/ over 500 km if GVD is tailored to 0.2/spl plusmn/0.08 ps/km/nm.
{"title":"Transmission characteristic improvement of two-channel wavelength division multiplexed solitons by controlling initial time offset","authors":"T. Matsuzono, J. Maeda, S. Kogoshi, H. Abe","doi":"10.1109/LEOS.1996.565147","DOIUrl":"https://doi.org/10.1109/LEOS.1996.565147","url":null,"abstract":"We propose a novel configuration of a 2-channel WDM soliton transmission system which cancels collision-induced frequency shifts at each amplifier. We analyze its transmission characteristic numerically with regard to the varying group velocity dispersion (GVD), and predict that a 100 Gb/s/spl times/2 system utilizing 51 ps solitons amplified every 25 km maintains a BER of 10/sup -9/ over 500 km if GVD is tailored to 0.2/spl plusmn/0.08 ps/km/nm.","PeriodicalId":332726,"journal":{"name":"Conference Proceedings LEOS'96 9th Annual Meeting IEEE Lasers and Electro-Optics Society","volume":"8 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1996-11-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"122588065","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 : 1996-11-18DOI: 10.1109/LEOS.1996.565103
Chinlon Lin, K. Ho, Hongxing Dai
We discuss systems considerations for the use of 1550 nm-based hybrid multiwavelength WDM systems operating at high-speed (2.5 and 10 Gb/s) per channel for high-capacity digital video trunking in which the digital optical channels are operating at different bit rates or carrying different digital signal formats.
{"title":"Hybrid WDM systems for video trunking applications","authors":"Chinlon Lin, K. Ho, Hongxing Dai","doi":"10.1109/LEOS.1996.565103","DOIUrl":"https://doi.org/10.1109/LEOS.1996.565103","url":null,"abstract":"We discuss systems considerations for the use of 1550 nm-based hybrid multiwavelength WDM systems operating at high-speed (2.5 and 10 Gb/s) per channel for high-capacity digital video trunking in which the digital optical channels are operating at different bit rates or carrying different digital signal formats.","PeriodicalId":332726,"journal":{"name":"Conference Proceedings LEOS'96 9th Annual Meeting IEEE Lasers and Electro-Optics Society","volume":"110 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1996-11-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"122615822","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}
J. L. Arce, M. Muriel, A. Cobo, M. Morante, J. López-Higuera
The effect of the imperfections of the commercial Faraday rotator mirror due to the large temperature dependence of its Faraday rotator angle is analyzed, and its influence for polarization changes compensation induced by birefringence in reciprocal photonic circuits is discussed. Currently, the Faraday rotators are made with ferromagnetic materials, Y/sub 3/Fe/sub 5/O/sub 12/ (YIG) and Bi-substituted garnets (BIG), whose Verdet constants are highly temperature dependent.
{"title":"Temperature influence on an optical universal compensator for polarization changes induced by birefringence on a retracing beam","authors":"J. L. Arce, M. Muriel, A. Cobo, M. Morante, J. López-Higuera","doi":"10.1006/OFTE.1997.0228","DOIUrl":"https://doi.org/10.1006/OFTE.1997.0228","url":null,"abstract":"The effect of the imperfections of the commercial Faraday rotator mirror due to the large temperature dependence of its Faraday rotator angle is analyzed, and its influence for polarization changes compensation induced by birefringence in reciprocal photonic circuits is discussed. Currently, the Faraday rotators are made with ferromagnetic materials, Y/sub 3/Fe/sub 5/O/sub 12/ (YIG) and Bi-substituted garnets (BIG), whose Verdet constants are highly temperature dependent.","PeriodicalId":332726,"journal":{"name":"Conference Proceedings LEOS'96 9th Annual Meeting IEEE Lasers and Electro-Optics Society","volume":"56 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1996-11-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"128381368","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 : 1996-11-18DOI: 10.1109/LEOS.1996.565115
J. Nappi, A. Ovtchinnikov, H. Asonen, S. Heinemann, F. Daiminger
We have grown Al-free GaInAsP/GaInP 808 nm strained single quantum well laser structures by the gas source molecular beam epitaxy method. Processed laser bars are shown to possess very good performance in terms of efficiency and short term reliability. They could replace AlGaAs laser bars in high power applications if the future long term reliability tests correlate with the present short term reliability data.
{"title":"High power Al-free 808 nm laser bars","authors":"J. Nappi, A. Ovtchinnikov, H. Asonen, S. Heinemann, F. Daiminger","doi":"10.1109/LEOS.1996.565115","DOIUrl":"https://doi.org/10.1109/LEOS.1996.565115","url":null,"abstract":"We have grown Al-free GaInAsP/GaInP 808 nm strained single quantum well laser structures by the gas source molecular beam epitaxy method. Processed laser bars are shown to possess very good performance in terms of efficiency and short term reliability. They could replace AlGaAs laser bars in high power applications if the future long term reliability tests correlate with the present short term reliability data.","PeriodicalId":332726,"journal":{"name":"Conference Proceedings LEOS'96 9th Annual Meeting IEEE Lasers and Electro-Optics Society","volume":"2 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1996-11-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"128352244","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 : 1996-11-18DOI: 10.1109/LEOS.1996.565245
D. Casasent
No one algorithm is felt to be appropriate for detection. Thus to achieve this, first and most important, and most computationally intensive operation in image processing, we consider the use of several detection algorithms and fusion of their outputs to reduce false alarms PFA while retaining high detection rates P/sub D/. The detection algorithms must be shift-invariant, since multiple objects can be present and since object location is not known. Thus, correlation filters are attractive (they are shift-invariant and provide processing gain).
{"title":"\"Optical filter fusion for object detection\"","authors":"D. Casasent","doi":"10.1109/LEOS.1996.565245","DOIUrl":"https://doi.org/10.1109/LEOS.1996.565245","url":null,"abstract":"No one algorithm is felt to be appropriate for detection. Thus to achieve this, first and most important, and most computationally intensive operation in image processing, we consider the use of several detection algorithms and fusion of their outputs to reduce false alarms PFA while retaining high detection rates P/sub D/. The detection algorithms must be shift-invariant, since multiple objects can be present and since object location is not known. Thus, correlation filters are attractive (they are shift-invariant and provide processing gain).","PeriodicalId":332726,"journal":{"name":"Conference Proceedings LEOS'96 9th Annual Meeting IEEE Lasers and Electro-Optics Society","volume":"73 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1996-11-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"128982014","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 : 1996-11-18DOI: 10.1109/LEOS.1996.565240
P. Smowton, P. Blood
Using experimental measurements of spontaneous emission spectra, we have separated the effects that current spreading and Fermi-level pinning have on the temperature dependence of the external differential efficiency of GaInP laser diodes. We conclude that a major factor contributing to the decrease of external differential efficiency with increasing temperature is a decrease in injection efficiency due to incomplete Fermi level pinning at threshold in the barrier regions alongside the well, and an increase in barrier recombination as the temperature increases.
{"title":"The differential efficiency of GaInP quantum well lasers","authors":"P. Smowton, P. Blood","doi":"10.1109/LEOS.1996.565240","DOIUrl":"https://doi.org/10.1109/LEOS.1996.565240","url":null,"abstract":"Using experimental measurements of spontaneous emission spectra, we have separated the effects that current spreading and Fermi-level pinning have on the temperature dependence of the external differential efficiency of GaInP laser diodes. We conclude that a major factor contributing to the decrease of external differential efficiency with increasing temperature is a decrease in injection efficiency due to incomplete Fermi level pinning at threshold in the barrier regions alongside the well, and an increase in barrier recombination as the temperature increases.","PeriodicalId":332726,"journal":{"name":"Conference Proceedings LEOS'96 9th Annual Meeting IEEE Lasers and Electro-Optics Society","volume":"33 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1996-11-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"130972132","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 : 1996-11-18DOI: 10.1109/LEOS.1996.571603
A. Bergh
The Optoelectronics Industry Development Association (OIDA), founded in 1991, is a North American partnership of suppliers and users of optoelectronics components. OIDA's objective is to improve the competitiveness of the North American optoelectronics industry. To that end, OIDA has undertaken an Optoelectronic Technology Roadmap Program, intended to identify the critical paths for the development of enabling optoelectronic technologies. A major conclusion of the road map program is that key to driving optoelectronics technology to higher performance, lower cost and improved competitiveness is volume manufacturing. With a few exceptions, North America lacks a large volume product manufacturing infrastructure for optoelectronic components and subassemblies.
{"title":"Manufacturing infrastructure for optoelectronics","authors":"A. Bergh","doi":"10.1109/LEOS.1996.571603","DOIUrl":"https://doi.org/10.1109/LEOS.1996.571603","url":null,"abstract":"The Optoelectronics Industry Development Association (OIDA), founded in 1991, is a North American partnership of suppliers and users of optoelectronics components. OIDA's objective is to improve the competitiveness of the North American optoelectronics industry. To that end, OIDA has undertaken an Optoelectronic Technology Roadmap Program, intended to identify the critical paths for the development of enabling optoelectronic technologies. A major conclusion of the road map program is that key to driving optoelectronics technology to higher performance, lower cost and improved competitiveness is volume manufacturing. With a few exceptions, North America lacks a large volume product manufacturing infrastructure for optoelectronic components and subassemblies.","PeriodicalId":332726,"journal":{"name":"Conference Proceedings LEOS'96 9th Annual Meeting IEEE Lasers and Electro-Optics Society","volume":"7 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1996-11-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"130341634","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 : 1996-11-18DOI: 10.1109/LEOS.1996.571586
S. Yuan, Gang Li, H. Tan, C. Jagadish, F. Karouta
In conclusion, we have demonstrated the use of novel carbon delta doped layers in the contact layer of InGaAs SQW GRINSCH lasers and compared with lasers consisting of Zn bulk doped contact layers. These carbon delta doped contact layer lasers are of interest for post growth tuning of the laser wavelength by quantum well intermixing without additional complications of dopant diffusion during subsequent processing.
{"title":"InGaAs GRINSCH-SQW lasers with novel carbon delta doped contact layer","authors":"S. Yuan, Gang Li, H. Tan, C. Jagadish, F. Karouta","doi":"10.1109/LEOS.1996.571586","DOIUrl":"https://doi.org/10.1109/LEOS.1996.571586","url":null,"abstract":"In conclusion, we have demonstrated the use of novel carbon delta doped layers in the contact layer of InGaAs SQW GRINSCH lasers and compared with lasers consisting of Zn bulk doped contact layers. These carbon delta doped contact layer lasers are of interest for post growth tuning of the laser wavelength by quantum well intermixing without additional complications of dopant diffusion during subsequent processing.","PeriodicalId":332726,"journal":{"name":"Conference Proceedings LEOS'96 9th Annual Meeting IEEE Lasers and Electro-Optics Society","volume":"40 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1996-11-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"131047754","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 : 1996-11-18DOI: 10.1109/LEOS.1996.565105
T. Lee, C. Zah, S. Yoo, R. Bhat, C. Caneau
In this talk, we will discuss in detail the multiwavelength DFB laser array technologies, and the all-optical wavelength converter technologies. Two types of DFB laser arrays have been developed for the MONET wavelength add-drop multiplexers (WADM) and wavelength terminal multiplexers (WTM). Laser arrays are to be incorporated in the MONET WADM network and WTM networks. Amongst various proposed wavelength conversion techniques, we have investigated the parametric wavelength converter for difference frequency generation in a nonlinear waveguide. The unique feature of the parametric wavelength converter is that it can convert all wavelength simultaneously as it has been demonstrated recently.
{"title":"Enabling optoelectronic technologies for optical networking","authors":"T. Lee, C. Zah, S. Yoo, R. Bhat, C. Caneau","doi":"10.1109/LEOS.1996.565105","DOIUrl":"https://doi.org/10.1109/LEOS.1996.565105","url":null,"abstract":"In this talk, we will discuss in detail the multiwavelength DFB laser array technologies, and the all-optical wavelength converter technologies. Two types of DFB laser arrays have been developed for the MONET wavelength add-drop multiplexers (WADM) and wavelength terminal multiplexers (WTM). Laser arrays are to be incorporated in the MONET WADM network and WTM networks. Amongst various proposed wavelength conversion techniques, we have investigated the parametric wavelength converter for difference frequency generation in a nonlinear waveguide. The unique feature of the parametric wavelength converter is that it can convert all wavelength simultaneously as it has been demonstrated recently.","PeriodicalId":332726,"journal":{"name":"Conference Proceedings LEOS'96 9th Annual Meeting IEEE Lasers and Electro-Optics Society","volume":"44 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1996-11-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"130055065","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 : 1996-11-18DOI: 10.1109/LEOS.1996.571634
J. Kong, S. Kim, Y. Shin
Recently, lasers and amplifiers have been developed to obtain a good spatial profile of a laser beam since good beam quality has been required for the best experimental results. In this work a simple method to improve the spatial profile of a laser is proposed, where the SBS cell is placed as an additional output coupler outside the Fabry-Perot resonator. Alignment of such a laser is very simple because the reflected beam from the SBS mirror propagates along the optic axis of the laser.
{"title":"Improvement of beam quality of a Nd:glass laser by coupling with a stimulated Brillouin scattering cell","authors":"J. Kong, S. Kim, Y. Shin","doi":"10.1109/LEOS.1996.571634","DOIUrl":"https://doi.org/10.1109/LEOS.1996.571634","url":null,"abstract":"Recently, lasers and amplifiers have been developed to obtain a good spatial profile of a laser beam since good beam quality has been required for the best experimental results. In this work a simple method to improve the spatial profile of a laser is proposed, where the SBS cell is placed as an additional output coupler outside the Fabry-Perot resonator. Alignment of such a laser is very simple because the reflected beam from the SBS mirror propagates along the optic axis of the laser.","PeriodicalId":332726,"journal":{"name":"Conference Proceedings LEOS'96 9th Annual Meeting IEEE Lasers and Electro-Optics Society","volume":"776 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1996-11-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"126869150","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}
京公网安备 11010802042870号
京ICP备2023020795号-1
扫码关注我们
求助内容：
应助结果提醒方式：