Pub Date : 2011-07-13DOI: 10.1109/WFOPC.2011.6089680
E. Mortazy, B. Le Drogoff, J. Azaña, M. Chaker, A. Tehranchi
Step-chirped gratings in silicon-based waveguide including two SiO2 layers as a core and cladding by considering limitations in fabrication process are designed as an integrated device. Coupled mode theory is used to analyze the waveguide step-chirped gratings. In the step-chirped grating structures, the grating is divided into a number of sections with a uniform grating. A matrix is obtained for each section. Then the resulted matrices for all sections are multiplied together to obtain the reflectivity and group delay of the whole gratings structure. Number of sections is optimized to minimize the ripples. Optimized 15-nm bandwidth and 50-ps group delay are achieved.
{"title":"Chirped Bragg grating in silicon based rib waveguide","authors":"E. Mortazy, B. Le Drogoff, J. Azaña, M. Chaker, A. Tehranchi","doi":"10.1109/WFOPC.2011.6089680","DOIUrl":"https://doi.org/10.1109/WFOPC.2011.6089680","url":null,"abstract":"Step-chirped gratings in silicon-based waveguide including two SiO2 layers as a core and cladding by considering limitations in fabrication process are designed as an integrated device. Coupled mode theory is used to analyze the waveguide step-chirped gratings. In the step-chirped grating structures, the grating is divided into a number of sections with a uniform grating. A matrix is obtained for each section. Then the resulted matrices for all sections are multiplied together to obtain the reflectivity and group delay of the whole gratings structure. Number of sections is optimized to minimize the ripples. Optimized 15-nm bandwidth and 50-ps group delay are achieved.","PeriodicalId":374957,"journal":{"name":"2011 7th International Workshop on Fibre and Optical Passive Components","volume":"44 7 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2011-07-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"115553604","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 : 2011-07-13DOI: 10.1109/WFOPC.2011.6089676
L. Hooper, P. Mosley, A. Muir, F. Yu, B. Mangan, W. Wadsworth, J. Knight, J. Dudley
We describe supercontinuum generation using photonic crystal fibres with all-normal group velocity dispersion profiles, pumped at 1064 nm and 800 nm wavelengths. Highly coherent and stable continua are demonstrated experimentally. We present pulse duration measurements obtained when spectrally filtering the all-normal dispersion supercontinuum, and show that this method is an excellent candidate for use as a compact, low-noise, tunable ultrafast laser source. Experimental spectral and temporal measurements are interpreted using numerical simulations, and experiment and modeling are shown to be in very good agreement.
{"title":"Coherent widely tunable source of sub-picosecond pulses using all-normal dispersion fiber supercontinuum","authors":"L. Hooper, P. Mosley, A. Muir, F. Yu, B. Mangan, W. Wadsworth, J. Knight, J. Dudley","doi":"10.1109/WFOPC.2011.6089676","DOIUrl":"https://doi.org/10.1109/WFOPC.2011.6089676","url":null,"abstract":"We describe supercontinuum generation using photonic crystal fibres with all-normal group velocity dispersion profiles, pumped at 1064 nm and 800 nm wavelengths. Highly coherent and stable continua are demonstrated experimentally. We present pulse duration measurements obtained when spectrally filtering the all-normal dispersion supercontinuum, and show that this method is an excellent candidate for use as a compact, low-noise, tunable ultrafast laser source. Experimental spectral and temporal measurements are interpreted using numerical simulations, and experiment and modeling are shown to be in very good agreement.","PeriodicalId":374957,"journal":{"name":"2011 7th International Workshop on Fibre and Optical Passive Components","volume":"8 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2011-07-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"127896902","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 : 2011-07-13DOI: 10.1109/WFOPC.2011.6089669
Ameneh Bostani, A. Tehranchi, R. Kashyap
Apodized chirped aperiodically poled lithium niobate is designed to generate smooth second harmonic of a pump wave over a wide bandwidth. The effect of different apodization functions and the ratio of apodization have been examined for the reduction of ripples in the efficiency response of APPLN.
{"title":"Study of apodization of aperiodically poled lithium niobate (APPLN) for second harmonic generation (SHG)","authors":"Ameneh Bostani, A. Tehranchi, R. Kashyap","doi":"10.1109/WFOPC.2011.6089669","DOIUrl":"https://doi.org/10.1109/WFOPC.2011.6089669","url":null,"abstract":"Apodized chirped aperiodically poled lithium niobate is designed to generate smooth second harmonic of a pump wave over a wide bandwidth. The effect of different apodization functions and the ratio of apodization have been examined for the reduction of ripples in the efficiency response of APPLN.","PeriodicalId":374957,"journal":{"name":"2011 7th International Workshop on Fibre and Optical Passive Components","volume":"71 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2011-07-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"130954533","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 : 2011-07-13DOI: 10.1109/WFOPC.2011.6089675
Elton Soares de Lima Filho, M. Gagn'e, G. Nemova, R. Kashyap, M. Saad, S. Bowman
The calibration of a novel scheme for direct contact and in-situ measurement of temperature in laser-induced cooling of solids is presented. The scheme demonstrates the advantages of fibre Bragg grating (FBG) sensors for measurements in typical laser cooling experiments, over traditional methods. In this paper these advantages are discussed and quantified. The paper presents the interrogation method utilized and the experimental results obtained with the setup.
{"title":"Sensing of laser cooling with optical fibres","authors":"Elton Soares de Lima Filho, M. Gagn'e, G. Nemova, R. Kashyap, M. Saad, S. Bowman","doi":"10.1109/WFOPC.2011.6089675","DOIUrl":"https://doi.org/10.1109/WFOPC.2011.6089675","url":null,"abstract":"The calibration of a novel scheme for direct contact and in-situ measurement of temperature in laser-induced cooling of solids is presented. The scheme demonstrates the advantages of fibre Bragg grating (FBG) sensors for measurements in typical laser cooling experiments, over traditional methods. In this paper these advantages are discussed and quantified. The paper presents the interrogation method utilized and the experimental results obtained with the setup.","PeriodicalId":374957,"journal":{"name":"2011 7th International Workshop on Fibre and Optical Passive Components","volume":"34 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2011-07-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"130082718","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 : 2011-07-13DOI: 10.1109/WFOPC.2011.6089677
Victor Lambin Iezzi, S. Loranger, A. Harhira, R. Kashyap, M. Saad, A. Gomes, S. Rehman
We present measurements and characterization of stimulated Brillouin scattering (SBS) in multi-mode fiber (MMF) in comparison with single-mode fiber (SMF). As can be expected, the threshold for SBS was measured to be much higher in MMF (105 mW) compared with SMF (15 mW). A difference of 525 MHz was observed in the SBS frequency shift between both types of fibers. An increase in the gain bandwidth, which was measured to be 17 MHz for MMF compared to 8 MHz in SMF and which is due to several modes present in the MMF. Temperature dependence of the frequency shift was also investigated and was shown to be the same (1 MHz/°C) for both types of fibers. Several applications are therefore proposed using SBS in multi-mode fiber.
{"title":"Stimulated Brillouin scattering in multi-mode fiber for sensing applications","authors":"Victor Lambin Iezzi, S. Loranger, A. Harhira, R. Kashyap, M. Saad, A. Gomes, S. Rehman","doi":"10.1109/WFOPC.2011.6089677","DOIUrl":"https://doi.org/10.1109/WFOPC.2011.6089677","url":null,"abstract":"We present measurements and characterization of stimulated Brillouin scattering (SBS) in multi-mode fiber (MMF) in comparison with single-mode fiber (SMF). As can be expected, the threshold for SBS was measured to be much higher in MMF (105 mW) compared with SMF (15 mW). A difference of 525 MHz was observed in the SBS frequency shift between both types of fibers. An increase in the gain bandwidth, which was measured to be 17 MHz for MMF compared to 8 MHz in SMF and which is due to several modes present in the MMF. Temperature dependence of the frequency shift was also investigated and was shown to be the same (1 MHz/°C) for both types of fibers. Several applications are therefore proposed using SBS in multi-mode fiber.","PeriodicalId":374957,"journal":{"name":"2011 7th International Workshop on Fibre and Optical Passive Components","volume":"105 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2011-07-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"126608290","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 : 2011-07-13DOI: 10.1109/WFOPC.2011.6089667
A. Al-kadry, M. Rochette
We propose an approach to design microwire waveguides that maximize wavelength-shift from 2.29 µm up to wavelengths in the mid infrared. The model is based on the optimization of soliton self-frequency shift and avoiding dispersive waves emission.
{"title":"Optimization of optical soliton self-frequency shifting towards the mid-infrared","authors":"A. Al-kadry, M. Rochette","doi":"10.1109/WFOPC.2011.6089667","DOIUrl":"https://doi.org/10.1109/WFOPC.2011.6089667","url":null,"abstract":"We propose an approach to design microwire waveguides that maximize wavelength-shift from 2.29 µm up to wavelengths in the mid infrared. The model is based on the optimization of soliton self-frequency shift and avoiding dispersive waves emission.","PeriodicalId":374957,"journal":{"name":"2011 7th International Workshop on Fibre and Optical Passive Components","volume":"69 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2011-07-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"130400241","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 : 2011-07-13DOI: 10.1109/WFOPC.2011.6089682
Q. Zheng, DeGui Sun, I. Hasan, S. Abdul-Majid, T. Hall
Silicon-on-insulator (SOI) photonic integrated circuits have recently become a research topic of great interest due to their compact confinements and compatibility with the modern micro-electronics. Low-loss SOI curved waveguides are attracting attention as they offer solutions to the dominant issue of integration density of planar lightwave circuits on a single SOI chip. Propagation loss and radiation loss rate of SOI curved waveguides are accurately measured by using Fabry-Perot interferometric method with the help of an optical vector analyzer (Luna system). The presented technique provides a universal solution for optical loss measurement of photonic integrated chips.
{"title":"An accurate measurement method for optical radiation loss of silicon-on-insulator curved waveguides","authors":"Q. Zheng, DeGui Sun, I. Hasan, S. Abdul-Majid, T. Hall","doi":"10.1109/WFOPC.2011.6089682","DOIUrl":"https://doi.org/10.1109/WFOPC.2011.6089682","url":null,"abstract":"Silicon-on-insulator (SOI) photonic integrated circuits have recently become a research topic of great interest due to their compact confinements and compatibility with the modern micro-electronics. Low-loss SOI curved waveguides are attracting attention as they offer solutions to the dominant issue of integration density of planar lightwave circuits on a single SOI chip. Propagation loss and radiation loss rate of SOI curved waveguides are accurately measured by using Fabry-Perot interferometric method with the help of an optical vector analyzer (Luna system). The presented technique provides a universal solution for optical loss measurement of photonic integrated chips.","PeriodicalId":374957,"journal":{"name":"2011 7th International Workshop on Fibre and Optical Passive Components","volume":"50 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2011-07-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"114600402","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 : 2011-07-13DOI: 10.1109/WFOPC.2011.6089679
Lucas Majeau, Jonathan Borduas, S. Loranger, Yahya El-Iraki, J. Lavoie, David Banville, V. Latendresse, Valerie Beland, Jonathan Daniel-Rivest, Amadou Thiaw, Hassan-David Bambara, Thierry P. Beausoleil, W. Trottier-Lapointe, J. Lapointe
Sensory gloves are promising technologies for human/machine interface and sign language translation. For theses applications, all degrees of freedom of the human hand have to be monitored with a good precision. For now, there is no sensory glove on the market meeting these requirements at low cost for widespread consumer applications. This paper describes a prototype of low cost sensory glove based on coupling loss fiber optics flexion sensors.
{"title":"Dataglove for consumer applications","authors":"Lucas Majeau, Jonathan Borduas, S. Loranger, Yahya El-Iraki, J. Lavoie, David Banville, V. Latendresse, Valerie Beland, Jonathan Daniel-Rivest, Amadou Thiaw, Hassan-David Bambara, Thierry P. Beausoleil, W. Trottier-Lapointe, J. Lapointe","doi":"10.1109/WFOPC.2011.6089679","DOIUrl":"https://doi.org/10.1109/WFOPC.2011.6089679","url":null,"abstract":"Sensory gloves are promising technologies for human/machine interface and sign language translation. For theses applications, all degrees of freedom of the human hand have to be monitored with a good precision. For now, there is no sensory glove on the market meeting these requirements at low cost for widespread consumer applications. This paper describes a prototype of low cost sensory glove based on coupling loss fiber optics flexion sensors.","PeriodicalId":374957,"journal":{"name":"2011 7th International Workshop on Fibre and Optical Passive Components","volume":"16 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2011-07-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"115415464","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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