Pub Date : 2007-06-24DOI: 10.1109/COINACOFT.2007.4519136
T. T. Le, L. Cahill
A new optical switch based on microring resonators (MRs) is proposed in this paper. By using the thermo-optic effect or electro-optic effect, the switching can be easily obtained at a very low switching power. The design, analysis and performance considerations of the proposed switch are given in detail.
{"title":"A Novel Proposal for Low Power Optical Switches Based on Microring Resonators","authors":"T. T. Le, L. Cahill","doi":"10.1109/COINACOFT.2007.4519136","DOIUrl":"https://doi.org/10.1109/COINACOFT.2007.4519136","url":null,"abstract":"A new optical switch based on microring resonators (MRs) is proposed in this paper. By using the thermo-optic effect or electro-optic effect, the switching can be easily obtained at a very low switching power. The design, analysis and performance considerations of the proposed switch are given in detail.","PeriodicalId":57196,"journal":{"name":"光通信研究","volume":"102 1","pages":"1-3"},"PeriodicalIF":0.0,"publicationDate":"2007-06-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"75882577","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 : 2007-06-24DOI: 10.1109/COINACOFT.2007.4519171
M. Åslund, S. Jackson
We introduce a method that alters the operating wavelength of a laser transition by using long period fibre gratings which couple from the core into an effective continuum of cladding modes. We shift the operating wavelength of an Nd3+- doped aluminosilicate fibre laser from 1057 nm to 1088 nm which represents dominant lasing from Nd3+ ions in Al3+ deficient sites.
{"title":"Long period gratings for wavelength specific loss in a fibre laser","authors":"M. Åslund, S. Jackson","doi":"10.1109/COINACOFT.2007.4519171","DOIUrl":"https://doi.org/10.1109/COINACOFT.2007.4519171","url":null,"abstract":"We introduce a method that alters the operating wavelength of a laser transition by using long period fibre gratings which couple from the core into an effective continuum of cladding modes. We shift the operating wavelength of an Nd3+- doped aluminosilicate fibre laser from 1057 nm to 1088 nm which represents dominant lasing from Nd3+ ions in Al3+ deficient sites.","PeriodicalId":57196,"journal":{"name":"光通信研究","volume":"96 1","pages":"1-3"},"PeriodicalIF":0.0,"publicationDate":"2007-06-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"82711405","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 : 2007-06-24DOI: 10.1109/COINACOFT.2007.4519172
Seungjin Lee, Namuk Kim, Tae-Yeon Kim, Minho Kang
In this paper, we discuss the architecture of WDM/TDM hybrid PON based on TLD. Also we address how to guarantee the fairness with high utilization of upstream data transmission between ONUs in reservation based architecture.
{"title":"Fairness of reservation based bandwidth allocation in WDM/TDM-PON","authors":"Seungjin Lee, Namuk Kim, Tae-Yeon Kim, Minho Kang","doi":"10.1109/COINACOFT.2007.4519172","DOIUrl":"https://doi.org/10.1109/COINACOFT.2007.4519172","url":null,"abstract":"In this paper, we discuss the architecture of WDM/TDM hybrid PON based on TLD. Also we address how to guarantee the fairness with high utilization of upstream data transmission between ONUs in reservation based architecture.","PeriodicalId":57196,"journal":{"name":"光通信研究","volume":"57 1","pages":"1-3"},"PeriodicalIF":0.0,"publicationDate":"2007-06-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"89837075","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 : 2007-06-24DOI: 10.1109/COINACOFT.2007.4519176
T. Iredale, M. Pelusi, B. Eggleton
We present a novel principle for all-optical monitoring of optical signal-to-noise ratio (OSNR) that exploits the effect of in-band noise on stimulated Brillouin scattering (SBS). It shown for NRZ signals it can resolve OSNRs above 40 dB.
{"title":"Highly-sensitive all-optical in-band OSNR monitor using stimulated Brillouin scattering","authors":"T. Iredale, M. Pelusi, B. Eggleton","doi":"10.1109/COINACOFT.2007.4519176","DOIUrl":"https://doi.org/10.1109/COINACOFT.2007.4519176","url":null,"abstract":"We present a novel principle for all-optical monitoring of optical signal-to-noise ratio (OSNR) that exploits the effect of in-band noise on stimulated Brillouin scattering (SBS). It shown for NRZ signals it can resolve OSNRs above 40 dB.","PeriodicalId":57196,"journal":{"name":"光通信研究","volume":"157 1","pages":"1-3"},"PeriodicalIF":0.0,"publicationDate":"2007-06-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"77744806","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 : 2007-06-24DOI: 10.1109/COINACOFT.2007.4519191
C. Martelli, P. Olivero, J. Canning, N. Groothoff, B. Gibson, S. Huntington
A focused ion beam is used to mill side access holes in two types of silica structured fibres: (1) a four-ring photonic crystal fibre and (2) a 6-hole single ring step index structured fibre.
{"title":"Air-Silica Structured Fibre Micromachining using Focused Ion Beam","authors":"C. Martelli, P. Olivero, J. Canning, N. Groothoff, B. Gibson, S. Huntington","doi":"10.1109/COINACOFT.2007.4519191","DOIUrl":"https://doi.org/10.1109/COINACOFT.2007.4519191","url":null,"abstract":"A focused ion beam is used to mill side access holes in two types of silica structured fibres: (1) a four-ring photonic crystal fibre and (2) a 6-hole single ring step index structured fibre.","PeriodicalId":57196,"journal":{"name":"光通信研究","volume":"8 1","pages":"1-3"},"PeriodicalIF":0.0,"publicationDate":"2007-06-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"75964193","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 : 2007-06-24DOI: 10.1109/COINACOFT.2007.4519205
C. Smith, S. Frederick, C. Grillet, C. Monat, D. Dalacu, J. Lapointe, P. Poole, G. Aers, R. Williams, D. Moss, B. Eggleton
We demonstrate the capability to post-tune a photonic crystal nanocavity resonance without affecting its quality factor via the presence of an evanescently coupling tapered optical fibre. A 3 nm shift is reported.
{"title":"Tuning of Photonic Crystal Nanocavity Resonances","authors":"C. Smith, S. Frederick, C. Grillet, C. Monat, D. Dalacu, J. Lapointe, P. Poole, G. Aers, R. Williams, D. Moss, B. Eggleton","doi":"10.1109/COINACOFT.2007.4519205","DOIUrl":"https://doi.org/10.1109/COINACOFT.2007.4519205","url":null,"abstract":"We demonstrate the capability to post-tune a photonic crystal nanocavity resonance without affecting its quality factor via the presence of an evanescently coupling tapered optical fibre. A 3 nm shift is reported.","PeriodicalId":57196,"journal":{"name":"光通信研究","volume":"1 1","pages":"1-3"},"PeriodicalIF":0.0,"publicationDate":"2007-06-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"72645753","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 : 2007-06-24DOI: 10.1109/COINACOFT.2007.4519203
B. Kouskousis, D. Kitcher, S. Collins, A. Roberts
A method to extract quantitative phase data from differential interference contrast (DIC) microscopic images is presented. This method in conjunction with the inverse Abel transform is used to obtain an accurate refractive index profile of a calibrated multi-step optical fibre (National Physical Laboratory). Results of the refractive index profile are compared with that determined by the calibration process.
{"title":"Refractive Index Profile of a Multi-Step Fibre Using Differential Interference Contrast Microscopy","authors":"B. Kouskousis, D. Kitcher, S. Collins, A. Roberts","doi":"10.1109/COINACOFT.2007.4519203","DOIUrl":"https://doi.org/10.1109/COINACOFT.2007.4519203","url":null,"abstract":"A method to extract quantitative phase data from differential interference contrast (DIC) microscopic images is presented. This method in conjunction with the inverse Abel transform is used to obtain an accurate refractive index profile of a calibrated multi-step optical fibre (National Physical Laboratory). Results of the refractive index profile are compared with that determined by the calibration process.","PeriodicalId":57196,"journal":{"name":"光通信研究","volume":"15 1","pages":"1-3"},"PeriodicalIF":0.0,"publicationDate":"2007-06-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"75308357","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 : 2007-06-24DOI: 10.1109/COINACOFT.2007.4519124
T. Huynh, T. Sivahumaran, L. N. Binh, K. K. Pang
We report that offset filtering in optical MSK narrowband frequency discrimination receiver offers significant improvement in receiver sensitivity. Detection of 40 Gb/s optical MSK signals is shown robust to a residual dispersion tolerance of up to plusmn595 ps/nm.
{"title":"Sensitivity Improvement with Offset Filtering in Optical MSK Narrowband Frequency Discrimination Receiver","authors":"T. Huynh, T. Sivahumaran, L. N. Binh, K. K. Pang","doi":"10.1109/COINACOFT.2007.4519124","DOIUrl":"https://doi.org/10.1109/COINACOFT.2007.4519124","url":null,"abstract":"We report that offset filtering in optical MSK narrowband frequency discrimination receiver offers significant improvement in receiver sensitivity. Detection of 40 Gb/s optical MSK signals is shown robust to a residual dispersion tolerance of up to plusmn595 ps/nm.","PeriodicalId":57196,"journal":{"name":"光通信研究","volume":"29 1","pages":"1-3"},"PeriodicalIF":0.0,"publicationDate":"2007-06-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"73802586","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 : 2007-06-24DOI: 10.1109/COINACOFT.2007.4519110
N. Sarkhosh, H. Emami, L. Bui, T. Nguyen, A. Mitchell
A technique to implement frequency measurement photonically using only low-cost DC photodetectors is proposed and a proof of concept implementation is practically demonstrated. Techniques to further reduce cost and extend bandwidth are proposed.
{"title":"Low-cost RF Frequency Measurement using Photonic Approach","authors":"N. Sarkhosh, H. Emami, L. Bui, T. Nguyen, A. Mitchell","doi":"10.1109/COINACOFT.2007.4519110","DOIUrl":"https://doi.org/10.1109/COINACOFT.2007.4519110","url":null,"abstract":"A technique to implement frequency measurement photonically using only low-cost DC photodetectors is proposed and a proof of concept implementation is practically demonstrated. Techniques to further reduce cost and extend bandwidth are proposed.","PeriodicalId":57196,"journal":{"name":"光通信研究","volume":"318 1","pages":"1-3"},"PeriodicalIF":0.0,"publicationDate":"2007-06-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"80166438","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 : 2007-06-24DOI: 10.1109/COINACOFT.2007.4519170
Bokrae Jung, Minho Kang
WDM/Ethernet-PON based on gain-saturated RSOA is proposed and verify extending splitting ratios employing time division duplex (TDD) shared MAC frame scheme. From the simulation results we expect great increase of subscribers at the expense of slight performance degradation.
{"title":"A Novel MAC Frame Scheme for Extending Capable Subscribers in WDM/Ethernet-PON","authors":"Bokrae Jung, Minho Kang","doi":"10.1109/COINACOFT.2007.4519170","DOIUrl":"https://doi.org/10.1109/COINACOFT.2007.4519170","url":null,"abstract":"WDM/Ethernet-PON based on gain-saturated RSOA is proposed and verify extending splitting ratios employing time division duplex (TDD) shared MAC frame scheme. From the simulation results we expect great increase of subscribers at the expense of slight performance degradation.","PeriodicalId":57196,"journal":{"name":"光通信研究","volume":"AES-11 1","pages":"1-3"},"PeriodicalIF":0.0,"publicationDate":"2007-06-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"84528693","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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