Pub Date : 2013-12-01DOI: 10.1109/WRAP.2013.6917625
G. Singh, D. Mehta
The manufacturing process of flexible substrates develops the residual stress which leads to the birefringence. This birefringence can affect the polarization of the light passing through substrate along with the spectral changes in LCDs. We report that the effect of the birefringence of flexible substrate on the polarization state of the light passing through it. We observed that by aligning the optics axis of the PET film in a particular plane will not affect the light polarization of the backlight source.
{"title":"Effect of birefringence of flexible substrate on the polarization state of backlight source for photonic devices","authors":"G. Singh, D. Mehta","doi":"10.1109/WRAP.2013.6917625","DOIUrl":"https://doi.org/10.1109/WRAP.2013.6917625","url":null,"abstract":"The manufacturing process of flexible substrates develops the residual stress which leads to the birefringence. This birefringence can affect the polarization of the light passing through substrate along with the spectral changes in LCDs. We report that the effect of the birefringence of flexible substrate on the polarization state of the light passing through it. We observed that by aligning the optics axis of the PET film in a particular plane will not affect the light polarization of the backlight source.","PeriodicalId":386455,"journal":{"name":"Workshop on Recent Advances in Photonics (WRAP)","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2013-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"127491470","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.2013.6917718
Preeta Sharan, R. Mulimani, Sandipta Roy
This paper investigates the influence of material and Structural properties on the performance of an optical fiber wound concentric composite fiber optic Mach-Zehnder interferometer by using the ANSYS Cad tool and MATLAB software.
{"title":"A finite element analysis for dynamic strain measurement with enhanced sensitivity","authors":"Preeta Sharan, R. Mulimani, Sandipta Roy","doi":"10.1109/WRAP.2013.6917718","DOIUrl":"https://doi.org/10.1109/WRAP.2013.6917718","url":null,"abstract":"This paper investigates the influence of material and Structural properties on the performance of an optical fiber wound concentric composite fiber optic Mach-Zehnder interferometer by using the ANSYS Cad tool and MATLAB software.","PeriodicalId":386455,"journal":{"name":"Workshop on Recent Advances in Photonics (WRAP)","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2013-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"134297534","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.2013.6917643
Niharika Kohli, E. Sharma, S. Srivastava
A unique methodology is presented for obtaining accurate orthogonal modal solutions for high index contrast Silicon on Insulator Waveguide Arrays. The Ritz GalerkinVariational procedure wherein the orthogonal basis set is obtained using the Gram Schmidt orthogonalization is presented.
{"title":"Orthogonal solutions for SOI Waveguide Arrays: a novel approach","authors":"Niharika Kohli, E. Sharma, S. Srivastava","doi":"10.1109/WRAP.2013.6917643","DOIUrl":"https://doi.org/10.1109/WRAP.2013.6917643","url":null,"abstract":"A unique methodology is presented for obtaining accurate orthogonal modal solutions for high index contrast Silicon on Insulator Waveguide Arrays. The Ritz GalerkinVariational procedure wherein the orthogonal basis set is obtained using the Gram Schmidt orthogonalization is presented.","PeriodicalId":386455,"journal":{"name":"Workshop on Recent Advances in Photonics (WRAP)","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2013-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"133304044","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.2013.6917654
Sudip K Chatterjee, Saba N. Khan, P. Chaudhuri
An efficient Supercontinuum generation in High-Index-Core Bragg Fiber under all-normal group velocity dispersion regime is demonstrated. The Full-vector-mode formulation is utilized to obtain ultra-flattened dispersion profile; a stable and spectrum-width of 400 nm is achieved.
{"title":"Smooth Supercontinuum generation in dispersion-flattened nonlinear High-Index-Core Bragg Fiber","authors":"Sudip K Chatterjee, Saba N. Khan, P. Chaudhuri","doi":"10.1109/WRAP.2013.6917654","DOIUrl":"https://doi.org/10.1109/WRAP.2013.6917654","url":null,"abstract":"An efficient Supercontinuum generation in High-Index-Core Bragg Fiber under all-normal group velocity dispersion regime is demonstrated. The Full-vector-mode formulation is utilized to obtain ultra-flattened dispersion profile; a stable and spectrum-width of 400 nm is achieved.","PeriodicalId":386455,"journal":{"name":"Workshop on Recent Advances in Photonics (WRAP)","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2013-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"133344787","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.2013.6917698
S. Pidishety, C. Prajapati, N. Viswanathan
The enhanced Goos-Hänchen (GH) shift due to surface plasmons excitation at the metal-dielectric interface is measured using Stokes polarimetry and is found to agree well with theoretical calculation and position-sensitive detector based measurement.
{"title":"Measurement of Goos-Hänchen shift using polarimetry","authors":"S. Pidishety, C. Prajapati, N. Viswanathan","doi":"10.1109/WRAP.2013.6917698","DOIUrl":"https://doi.org/10.1109/WRAP.2013.6917698","url":null,"abstract":"The enhanced Goos-Hänchen (GH) shift due to surface plasmons excitation at the metal-dielectric interface is measured using Stokes polarimetry and is found to agree well with theoretical calculation and position-sensitive detector based measurement.","PeriodicalId":386455,"journal":{"name":"Workshop on Recent Advances in Photonics (WRAP)","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2013-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"116306949","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.2013.6917685
B. N. Shivananju, Parama Pal, S. Yamdagni, M. Varma, S. Asokan
Multi-parameter sensing in the form of sensor arrays functionalized with multiple receptors, is an approach for attaining selectivity in sensing. We have demonstrated a novel fiber sensor based on an etched Bragg grating whose core is coated with materials such as polyelectrolytes, carbon nanotubes, and polyallylamine-amino-carbon nanotubes, and can be used for detecting gases, pH, humidity, refractive index, proteins and other biomolecules. In this approach, the target molecules interact with the functionalized core of the etched FBG resulting in a change in the effective refractive index of the fiber core leading to a subsequent shift in the Bragg wavelength. The experimental data shows that the wavelength shift varies linearly with the concentration of the target analyte. Besides being reproducible and repeatable, the technique is fast, compact, and highly sensitive.
{"title":"Nanomaterial-coated etched fiber Bragg grating sensors","authors":"B. N. Shivananju, Parama Pal, S. Yamdagni, M. Varma, S. Asokan","doi":"10.1109/WRAP.2013.6917685","DOIUrl":"https://doi.org/10.1109/WRAP.2013.6917685","url":null,"abstract":"Multi-parameter sensing in the form of sensor arrays functionalized with multiple receptors, is an approach for attaining selectivity in sensing. We have demonstrated a novel fiber sensor based on an etched Bragg grating whose core is coated with materials such as polyelectrolytes, carbon nanotubes, and polyallylamine-amino-carbon nanotubes, and can be used for detecting gases, pH, humidity, refractive index, proteins and other biomolecules. In this approach, the target molecules interact with the functionalized core of the etched FBG resulting in a change in the effective refractive index of the fiber core leading to a subsequent shift in the Bragg wavelength. The experimental data shows that the wavelength shift varies linearly with the concentration of the target analyte. Besides being reproducible and repeatable, the technique is fast, compact, and highly sensitive.","PeriodicalId":386455,"journal":{"name":"Workshop on Recent Advances in Photonics (WRAP)","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2013-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"128208897","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.2013.6917680
A. Agrawal, B. Tiwari, D. Chadha
We designed a 7 node Hybrid FSO mesh network using dynamic geographical routing. Performance parameters with and without RF activation are compared. Calculations at low data rate are utilized to identify the redundant links for energy saving.
{"title":"Performance of hybrid free space optic network","authors":"A. Agrawal, B. Tiwari, D. Chadha","doi":"10.1109/WRAP.2013.6917680","DOIUrl":"https://doi.org/10.1109/WRAP.2013.6917680","url":null,"abstract":"We designed a 7 node Hybrid FSO mesh network using dynamic geographical routing. Performance parameters with and without RF activation are compared. Calculations at low data rate are utilized to identify the redundant links for energy saving.","PeriodicalId":386455,"journal":{"name":"Workshop on Recent Advances in Photonics (WRAP)","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2013-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"129399169","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.2013.6917662
S. G. Reddy, S. Prabhakar, R. P. Singh, Ashok Kumar
We have studied the spatial intensity distribution of optical vortex beams both theoretically and experimentally. We show that the area of the bright ring present in optical vortex increases with its order along with the inner and outer radii of the vortex beams.
{"title":"Spatial intensity distribution of optical vortex beams","authors":"S. G. Reddy, S. Prabhakar, R. P. Singh, Ashok Kumar","doi":"10.1109/WRAP.2013.6917662","DOIUrl":"https://doi.org/10.1109/WRAP.2013.6917662","url":null,"abstract":"We have studied the spatial intensity distribution of optical vortex beams both theoretically and experimentally. We show that the area of the bright ring present in optical vortex increases with its order along with the inner and outer radii of the vortex beams.","PeriodicalId":386455,"journal":{"name":"Workshop on Recent Advances in Photonics (WRAP)","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2013-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"122005225","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.2013.6917693
K. Sharma, D. Venkitesh, S. Bhattacharya
A new technique for cavity ring down spectroscopy is demonstrated by utilising multipulsing in Q-switched fiber lasers. The ring down time is found to increase with absorption and the suggested scheme has improved detection sensitivity.
{"title":"Enhanced sensitivity in cavity ring down spectroscopy using Q-switched fiber lasers","authors":"K. Sharma, D. Venkitesh, S. Bhattacharya","doi":"10.1109/WRAP.2013.6917693","DOIUrl":"https://doi.org/10.1109/WRAP.2013.6917693","url":null,"abstract":"A new technique for cavity ring down spectroscopy is demonstrated by utilising multipulsing in Q-switched fiber lasers. The ring down time is found to increase with absorption and the suggested scheme has improved detection sensitivity.","PeriodicalId":386455,"journal":{"name":"Workshop on Recent Advances in Photonics (WRAP)","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2013-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"128832415","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.2013.6917639
G. Thavasi Raja, S. Varshney
Novel designs to achieve low bending and higher differential losses (>1000) in all-solid large-mode area leakage channel fibers with asymmetric-cladding structure for high-power applications are proposed. Superior characteristics are attained in comparison to existing structures.
{"title":"Large mode area leakage channel fibers with low bending and higher differential losses","authors":"G. Thavasi Raja, S. Varshney","doi":"10.1109/WRAP.2013.6917639","DOIUrl":"https://doi.org/10.1109/WRAP.2013.6917639","url":null,"abstract":"Novel designs to achieve low bending and higher differential losses (>1000) in all-solid large-mode area leakage channel fibers with asymmetric-cladding structure for high-power applications are proposed. Superior characteristics are attained in comparison to existing structures.","PeriodicalId":386455,"journal":{"name":"Workshop on Recent Advances in Photonics (WRAP)","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2013-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"129225270","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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