Pub Date : 2013-12-01DOI: 10.1109/WRAP.2013.6917634
Preeti Rani, Y. Kalra, R. Sinha, Himanshu Chauhan
A highly sensitive Micro-Displacement Sensor design consisting of 2D hexagonal PCWG arrangement of moving and fixed waveguides is created and its sensitivity is numerically simulated and estimated to be >1.5μm-1.
{"title":"Design of a highly sensitive Micro-Displacement Sensor based on photonic crystal waveguides","authors":"Preeti Rani, Y. Kalra, R. Sinha, Himanshu Chauhan","doi":"10.1109/WRAP.2013.6917634","DOIUrl":"https://doi.org/10.1109/WRAP.2013.6917634","url":null,"abstract":"A highly sensitive Micro-Displacement Sensor design consisting of 2D hexagonal PCWG arrangement of moving and fixed waveguides is created and its sensitivity is numerically simulated and estimated to be >1.5μm-1.","PeriodicalId":386455,"journal":{"name":"Workshop on Recent Advances in Photonics (WRAP)","volume":"35 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2013-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"122146961","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 : 2013-12-01DOI: 10.1109/WRAP.2013.6917632
A. Barh, R. Varshney, B. Pal, S. Ghosh
All-fiber design approach for temporal parabolic pulse (PP) generation through a very short length of tapered microstructured optical fiber (MOF) is proposed. A length of just ~ 20 cm of designed MOF is shown to yield PP for a Gaussian input at 2 μm wavelength.
{"title":"Exploiting microstructured optical fiber platform for generating temporal parabolic pulse","authors":"A. Barh, R. Varshney, B. Pal, S. Ghosh","doi":"10.1109/WRAP.2013.6917632","DOIUrl":"https://doi.org/10.1109/WRAP.2013.6917632","url":null,"abstract":"All-fiber design approach for temporal parabolic pulse (PP) generation through a very short length of tapered microstructured optical fiber (MOF) is proposed. A length of just ~ 20 cm of designed MOF is shown to yield PP for a Gaussian input at 2 μm wavelength.","PeriodicalId":386455,"journal":{"name":"Workshop on Recent Advances in Photonics (WRAP)","volume":"49 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2013-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"130107034","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 : 2013-12-01DOI: 10.1109/WRAP.2013.6917676
Samsheerali, K. Khare, J. Joseph
We demonstrate the feasibility of constrained optimization approach for quantitative phase profiling. A high quality phase recovery from a near on axis hologram is made possible with the method.
我们证明了约束优化方法用于定量相位分析的可行性。利用该方法可以从近轴全息图中获得高质量的相位恢复。
{"title":"Single shot digital holography for real-time phase profiling of transparent objects","authors":"Samsheerali, K. Khare, J. Joseph","doi":"10.1109/WRAP.2013.6917676","DOIUrl":"https://doi.org/10.1109/WRAP.2013.6917676","url":null,"abstract":"We demonstrate the feasibility of constrained optimization approach for quantitative phase profiling. A high quality phase recovery from a near on axis hologram is made possible with the method.","PeriodicalId":386455,"journal":{"name":"Workshop on Recent Advances in Photonics (WRAP)","volume":"3 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2013-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"129093165","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 : 2013-12-01DOI: 10.1109/WRAP.2013.6917710
S. Kher, S. Chaubey, J. Kishore, S. M. Oak
We have experimentally studied in real time the effect of gamma radiation on the characteristics of long period fibre gratings written in different types of fibres. The grating parameters and fibre composition have been optimized. Prototype packaged sensors have been developed for field application.
{"title":"Investigation of nuclear radiation sensing potential of fibre gratings with special reference to nuclear reactors and accelerators","authors":"S. Kher, S. Chaubey, J. Kishore, S. M. Oak","doi":"10.1109/WRAP.2013.6917710","DOIUrl":"https://doi.org/10.1109/WRAP.2013.6917710","url":null,"abstract":"We have experimentally studied in real time the effect of gamma radiation on the characteristics of long period fibre gratings written in different types of fibres. The grating parameters and fibre composition have been optimized. Prototype packaged sensors have been developed for field application.","PeriodicalId":386455,"journal":{"name":"Workshop on Recent Advances in Photonics (WRAP)","volume":"14 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2013-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"125354981","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 : 2013-12-01DOI: 10.1109/WRAP.2013.6917688
A. Pal, A. Dhar, R. Sen, M. Ams, T. Sun, K. Grattan
Radiation-resistant optical fibers have been fabricated through MCVD process. The low radiation-induced-absorption in the fiber and few picometer shifting of Bragg-wavelength of the FBG under γ-exposure indicate its potential application for sensing in radiation environment.
{"title":"Radiation resistant optical fiber for FBG based sensing","authors":"A. Pal, A. Dhar, R. Sen, M. Ams, T. Sun, K. Grattan","doi":"10.1109/WRAP.2013.6917688","DOIUrl":"https://doi.org/10.1109/WRAP.2013.6917688","url":null,"abstract":"Radiation-resistant optical fibers have been fabricated through MCVD process. The low radiation-induced-absorption in the fiber and few picometer shifting of Bragg-wavelength of the FBG under γ-exposure indicate its potential application for sensing in radiation environment.","PeriodicalId":386455,"journal":{"name":"Workshop on Recent Advances in Photonics (WRAP)","volume":"79 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2013-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"121350134","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 : 2013-12-01DOI: 10.1109/WRAP.2013.6917658
B. Sai Venkatesh, R. Ganapathy, K. Porsezian
A Radio-over fiber communication system operating at Terahertz frequency is designed, considering the underlying physics of nanoelectronic and nanophotonic devices, and performance of non-conventional soliton based carriers is evaluated, accounting for novelty of this work.
{"title":"Design of Terahertz Radio over Fiber - Beyond 4G","authors":"B. Sai Venkatesh, R. Ganapathy, K. Porsezian","doi":"10.1109/WRAP.2013.6917658","DOIUrl":"https://doi.org/10.1109/WRAP.2013.6917658","url":null,"abstract":"A Radio-over fiber communication system operating at Terahertz frequency is designed, considering the underlying physics of nanoelectronic and nanophotonic devices, and performance of non-conventional soliton based carriers is evaluated, accounting for novelty of this work.","PeriodicalId":386455,"journal":{"name":"Workshop on Recent Advances in Photonics (WRAP)","volume":"52 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2013-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"125065309","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 : 2013-12-01DOI: 10.1109/WRAP.2013.6917660
M. S. Aruna Gandhi, K. Senthilnathan, P. Ramesh Babu, S. Sivabalan, K. Nakkeeran
We propose a six fold solid-core photonic quasicrystal fiber for studying optical properties for wavelengths from 200 to 3000 nm and demonstrate a low dispersion and high nonlinearity at 1060 nm for few-cycle pulse generation.
{"title":"Low dispersion and high nonlinearity microstructured photonic quasicrystal fiber","authors":"M. S. Aruna Gandhi, K. Senthilnathan, P. Ramesh Babu, S. Sivabalan, K. Nakkeeran","doi":"10.1109/WRAP.2013.6917660","DOIUrl":"https://doi.org/10.1109/WRAP.2013.6917660","url":null,"abstract":"We propose a six fold solid-core photonic quasicrystal fiber for studying optical properties for wavelengths from 200 to 3000 nm and demonstrate a low dispersion and high nonlinearity at 1060 nm for few-cycle pulse generation.","PeriodicalId":386455,"journal":{"name":"Workshop on Recent Advances in Photonics (WRAP)","volume":"47 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2013-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"132357723","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 : 2013-12-01DOI: 10.1109/WRAP.2013.6917709
S. Rajput, N. Nishchal
We propose an image encryption scheme based on the double phase encoding in fractional Fourier transform domain for securing two gray-scale images. For encryption, an image to be encrypted is converted into a phase-only image using modified Gerchberg-Saxton algorithm, which serves as a fractional Fourier domain key for encrypting another image employing double random phase encoding framework. For decryption, original images are obtained using the concept of known-plaintext attack. The numerical simulation results are presented in support of the proposed scheme.
{"title":"Double image encryption scheme based on known-plaintext attack in fractional fourier transform domain","authors":"S. Rajput, N. Nishchal","doi":"10.1109/WRAP.2013.6917709","DOIUrl":"https://doi.org/10.1109/WRAP.2013.6917709","url":null,"abstract":"We propose an image encryption scheme based on the double phase encoding in fractional Fourier transform domain for securing two gray-scale images. For encryption, an image to be encrypted is converted into a phase-only image using modified Gerchberg-Saxton algorithm, which serves as a fractional Fourier domain key for encrypting another image employing double random phase encoding framework. For decryption, original images are obtained using the concept of known-plaintext attack. The numerical simulation results are presented in support of the proposed scheme.","PeriodicalId":386455,"journal":{"name":"Workshop on Recent Advances in Photonics (WRAP)","volume":"54 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2013-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"131719296","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 : 2013-12-01DOI: 10.1109/WRAP.2013.6917648
M. Tiwari, V. Janyani
We propose a lead silicate all-solid photonic crystal fiber which exhibits enhanced nonlinearity and very flat and near-zero dispersion in anomalous region and is suitable for broadband supercontinuum with 50fs-2kW pulses pumped at 1.55 micrometer.
{"title":"Supercontinuum generation in all-solid photonic crystal fiber","authors":"M. Tiwari, V. Janyani","doi":"10.1109/WRAP.2013.6917648","DOIUrl":"https://doi.org/10.1109/WRAP.2013.6917648","url":null,"abstract":"We propose a lead silicate all-solid photonic crystal fiber which exhibits enhanced nonlinearity and very flat and near-zero dispersion in anomalous region and is suitable for broadband supercontinuum with 50fs-2kW pulses pumped at 1.55 micrometer.","PeriodicalId":386455,"journal":{"name":"Workshop on Recent Advances in Photonics (WRAP)","volume":"68 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2013-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"116752435","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 : 2013-12-01DOI: 10.1109/WRAP.2013.6917668
A. Mishra, M. Thollabandi, A. Kakkar, Bikram Jyot, H. Sardesai, B. Gomatam
We report successful transmission of 80×128 Gbit/s coherent PDM-QPSK wavelength-division-multiplexing (WDM) signals spaced at 50 GHz over 23 spans of 80 km standard Sterlite OH-LITE fiber.
{"title":"80×128 Gbit/s PDM-QPSK signal transmission over 1840 km of standard Sterlite OH-LITE fiber","authors":"A. Mishra, M. Thollabandi, A. Kakkar, Bikram Jyot, H. Sardesai, B. Gomatam","doi":"10.1109/WRAP.2013.6917668","DOIUrl":"https://doi.org/10.1109/WRAP.2013.6917668","url":null,"abstract":"We report successful transmission of 80×128 Gbit/s coherent PDM-QPSK wavelength-division-multiplexing (WDM) signals spaced at 50 GHz over 23 spans of 80 km standard Sterlite OH-LITE fiber.","PeriodicalId":386455,"journal":{"name":"Workshop on Recent Advances in Photonics (WRAP)","volume":"98 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2013-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"121969435","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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