{"title":"Light Amplification in Polymer Optical Fibers","authors":"Takeyuki Kobayashi, E. Nihei, K. Sasaki, Y. Koike","doi":"10.1364/otfa.1997.wd.2","DOIUrl":"https://doi.org/10.1364/otfa.1997.wd.2","url":null,"abstract":"Polymer optical fibers (POF) have attracted increasing attention because of their clear technical advantages over glass fibers, such as flexibility and a large core diameter, which enable efficient coupling and connection. Recently, we developed low-loss (100 dB/km) high-bandwidth (5.12 GHz for 100-m transmisson) graded index POF1. Polymer optical fibers that regenerate signal light in the visible and infrared are potentially important because of their adaptability for POF-based short span optical local distribution networks such as premise wiring and LAN.","PeriodicalId":378320,"journal":{"name":"Organic Thin Films for Photonics Applications","volume":"82 2","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1900-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"134162548","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}
{"title":"Polymer Thin Film Overlays for Passive Side Polished Fiber Devices","authors":"S. G. Lee, J. P. Sokoloff, H. Sasabe","doi":"10.1364/otfa.1997.thb.3","DOIUrl":"https://doi.org/10.1364/otfa.1997.thb.3","url":null,"abstract":"Side polished fibers (SPF) are interesting devices because they represent a method of altering a light wave's amplitude or phase as it travels in an optical fiber. This eliminates many of the practical problems associated with fiber-optic devices made up of components, such as the optical mode-mismatches and losses resulting from \"pigtailing\" an optical fiber to a non-fiber device component. In SPFs a portion (~1 mm in length) of the fiber clad is polished away permitting the light wave to interact with an overlay material placed on the polished area. A variety of overlays have been used with SPFs to make both passive and active SPF devices.1","PeriodicalId":378320,"journal":{"name":"Organic Thin Films for Photonics Applications","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1900-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"134283653","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}
{"title":"Laser Emission from A Monolithic Organic Single Crystal","authors":"D. Fichou, S. Delysse, J. Nunzi","doi":"10.1364/otfa.1997.wc.1","DOIUrl":"https://doi.org/10.1364/otfa.1997.wc.1","url":null,"abstract":"Recently, the possibility to realize a polymer laser diode has been investigated and it has been shown that optically pumped conjugated polymers generate stimulated emission in solution [1,2] and thin films [3-5]. In the latter case, it is necessary to build a microcavity around the polymer film in order to induce lasing. We demonstrate here that ultra thin (a few microns) single crystals of octithiophene (8T) naturally behave as luminescent optical resonators and are adapted to produce optically driven laser emission.","PeriodicalId":378320,"journal":{"name":"Organic Thin Films for Photonics Applications","volume":"39 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1900-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"124616554","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}
B. Kippelen, B. Volodin, E. Hendrickx, D. Steele, Sandalphon, Y. Enami, J. Wang, H. Röckel, F. Meyers, S. Marder, N. Peyghambarian
{"title":"High performance photorefractive polymers and their applications","authors":"B. Kippelen, B. Volodin, E. Hendrickx, D. Steele, Sandalphon, Y. Enami, J. Wang, H. Röckel, F. Meyers, S. Marder, N. Peyghambarian","doi":"10.1364/otfa.1997.fd.1","DOIUrl":"https://doi.org/10.1364/otfa.1997.fd.1","url":null,"abstract":"Within the past years, photorefractive polymers have gained in maturity and are emerging as a promising new class of materials for photonic applications.1,2 Several applications ranging from holographic storage to real-time optical processing3 have been demonstrated with highly efficient photorefractive polymers. In polymers with a low glass transition temperature, orientational effects were identified4 and were found to have the strongest contribution to the overall refractive index modulation amplitude.5 Due to these orientational effects, the design criteria or figure of merit of chromophores for photorefractive applications differ from those of purely electro-optic applications.","PeriodicalId":378320,"journal":{"name":"Organic Thin Films for Photonics Applications","volume":"22 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1900-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"127261111","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}
{"title":"Preparation and Characterization of Single Crystal PTS Waveguide Film","authors":"M. Liu, C. Hwangbo, L. Friedrich, G. Stegeman","doi":"10.1364/otfa.1997.wc.2","DOIUrl":"https://doi.org/10.1364/otfa.1997.wc.2","url":null,"abstract":"Spatial optical solitons have been receiving an increasing amount of attention due to their potential application for all-optical interconnects. Bright solitons arise as a compensation of natural diffraction of an optical beam by a self-focus nonlinearity. They have been observed in semiconductor, glass and CS2 waveguides at powers of 500W, 400KW and 500KW [1,2,3]. Recently, conjugated polymer poly[2,4-hexadiyn-1, 6-diol-bis(p-toluenesulfonate)] (PTS) was reported to have large positive nonlinearity (2.2×10-12W/cm2) and a very small two-photo absorption at around 1.6μm [4]. The large off-resonant positive nonlinearity would allow the one dimensional (ID) spatial soliton at a practical power level on PTS slab waveguide. We now report the preparation and waveguiding of PTS films.","PeriodicalId":378320,"journal":{"name":"Organic Thin Films for Photonics Applications","volume":"271 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1900-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"125726562","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}
JD Shakos, A. Cox, D. West, KS West, TA King, RD Blackburn
{"title":"Organic photorefractive composite dynamics","authors":"JD Shakos, A. Cox, D. West, KS West, TA King, RD Blackburn","doi":"10.1364/otfa.1997.fd.2","DOIUrl":"https://doi.org/10.1364/otfa.1997.fd.2","url":null,"abstract":"Several devices such as holographic memory elements and adaptive optical components benefit from a rapid rate of recording of diffraction gratings. In reorientationally-enhanced photorefractive materials1'1, the total electro-optic response is due to a combination of the electronic electro-optic effect (or Pockels effect) and the reorientation of polar birefringent molecules in the presence of the local electric field. This reorientational effect can be significantly larger than the Pockels effect in these materials, but may be slow due to the characteristic reorientation times of these polar molecules. This effect depends largely on the reorientational mobility of the molecules, which correlates with the material viscosity.","PeriodicalId":378320,"journal":{"name":"Organic Thin Films for Photonics Applications","volume":"5 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1900-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"126796374","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}
Antao Chen, V. Chuyanov, F. I. Marti-Carrera, S. Garner, W. Steier, Jinghong Chen, Shajing Sun, S. Mao, Younsoo Ra, L. Dalton
{"title":"Vertical tapered mode size transformer in polymer waveguides for efficient fiber coupling","authors":"Antao Chen, V. Chuyanov, F. I. Marti-Carrera, S. Garner, W. Steier, Jinghong Chen, Shajing Sun, S. Mao, Younsoo Ra, L. Dalton","doi":"10.1364/otfa.1997.wa.3","DOIUrl":"https://doi.org/10.1364/otfa.1997.wa.3","url":null,"abstract":"Recent years have seen significant progress in photonic devices based on electrooptic (EO) and passive polymers. Recently an EO polymer modulator that works at a record high speed of 113 GHz has been reported(1), and a system demonstration incorporating EO polymer modulators has also been made(2). As polymer waveguide devices are entering fiber optic telecommunication and data communication systems, practical issues concerned by system designers have become increasingly important. One of such issues is the insertion loss of the polymer device.","PeriodicalId":378320,"journal":{"name":"Organic Thin Films for Photonics Applications","volume":"30 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1900-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"125872061","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}
F. J. Bartoli, J. Lindle, S. Flom, B. Ratna, R. Shashidhar
{"title":"Field-Induced Spatial Deformations in Chiral Smectic A Liquid Crystals","authors":"F. J. Bartoli, J. Lindle, S. Flom, B. Ratna, R. Shashidhar","doi":"10.1364/otfa.1997.the.13","DOIUrl":"https://doi.org/10.1364/otfa.1997.the.13","url":null,"abstract":"The application of an electric field to an electroclinic liquid crystal (ELC) causes the molecules to tilt, permitting efficient modulation of an optical signal. This electroclinic tilt also leads to a reduction of the smectic layer thickness, thus introducing strain and causing the planes to deform in order to accommodate the change in the layer thickness. When the ELC is viewed under a polarizing microscope, a spatial modulation of the transmission is observed.1-5 The resulting stripe texture is generally depicted as a triangular deformation of the smectic layer, where a deformation angle equal to the electroclinic (EC) tilt angle preserves the interlayer spacing.5 In this paper, the relationship of the deformation angle and the EC tilt angle is investigated by measuring the field dependence of the transmission of an ELC placed between crossed polarizers. The measured extinction is sensitive to the molecular alignment and is therefore a useful probe of the field induced deformation.","PeriodicalId":378320,"journal":{"name":"Organic Thin Films for Photonics Applications","volume":"29 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1900-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"121493083","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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