Pub Date : 2008-01-31DOI: 10.1109/LEOSWT.2008.4444459
A. Mussot, A. Kudlinski, J. Beugnot, T. Sylvestre, M. González-Herráez, G. Bouwmans
We report the generation of a broadband super- continuum with a CW Yb fiber laser and a PCF. The spectrum extends toward short wavelengths through efficient dispersive wave generation.
我们报道了用连续Yb光纤激光器和PCF产生宽带超连续介质。通过有效的色散波产生，光谱向短波长延伸。
{"title":"Extended blue side of flat supercontinuum generation in PCFs with a CW Yb fiber laser","authors":"A. Mussot, A. Kudlinski, J. Beugnot, T. Sylvestre, M. González-Herráez, G. Bouwmans","doi":"10.1109/LEOSWT.2008.4444459","DOIUrl":"https://doi.org/10.1109/LEOSWT.2008.4444459","url":null,"abstract":"We report the generation of a broadband super- continuum with a CW Yb fiber laser and a PCF. The spectrum extends toward short wavelengths through efficient dispersive wave generation.","PeriodicalId":114191,"journal":{"name":"2008 IEEE/LEOS Winter Topical Meeting Series","volume":"32 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2008-01-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"125449010","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 : 2008-01-31DOI: 10.1109/LEOSWT.2008.4444401
A. Vedadi, É. Lantz, H. Maillotte, T. Sylvestre
Using the four sidebands theory, we analyze a recent experimental demonstration of a broadband and flat two-pump fiber optical parametric amplifier and predict gain oscillations near the pump wavelength due to interference with modulation instability and Bragg scattering.
{"title":"Gain oscillations in two-pump fiber optical parametric amplifiers","authors":"A. Vedadi, É. Lantz, H. Maillotte, T. Sylvestre","doi":"10.1109/LEOSWT.2008.4444401","DOIUrl":"https://doi.org/10.1109/LEOSWT.2008.4444401","url":null,"abstract":"Using the four sidebands theory, we analyze a recent experimental demonstration of a broadband and flat two-pump fiber optical parametric amplifier and predict gain oscillations near the pump wavelength due to interference with modulation instability and Bragg scattering.","PeriodicalId":114191,"journal":{"name":"2008 IEEE/LEOS Winter Topical Meeting Series","volume":"19 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2008-01-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"126456318","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 : 2008-01-31DOI: 10.1109/LEOSWT.2008.4444398
B. Kuo, K. Shimizu, P. Chui, K. Wong
We demonstrate a novel technique to improve receiver sensitivity for ON-OFF keying format by adopting balanced detection with optical parametric amplifier (OPA) as pre-amplifier. Receiver sensitivity was improved by 1.9 dB compared to single-ended detection scheme.
{"title":"Receiver sensitivity improvement for ON-OFF keying signal by using optical parametric amplifier and balanced detection","authors":"B. Kuo, K. Shimizu, P. Chui, K. Wong","doi":"10.1109/LEOSWT.2008.4444398","DOIUrl":"https://doi.org/10.1109/LEOSWT.2008.4444398","url":null,"abstract":"We demonstrate a novel technique to improve receiver sensitivity for ON-OFF keying format by adopting balanced detection with optical parametric amplifier (OPA) as pre-amplifier. Receiver sensitivity was improved by 1.9 dB compared to single-ended detection scheme.","PeriodicalId":114191,"journal":{"name":"2008 IEEE/LEOS Winter Topical Meeting Series","volume":"5 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2008-01-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"125034255","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 : 2008-01-31DOI: 10.1109/LEOSWT.2008.4444442
A. Boucon, D. Alasia, J. Beugnot, H. Maillotte, J. Dudley, T. Sylvestre
We experimentally study supercontinuum generation in the nanosecond regime using a microstructured fiber with two zero dispersion wavelengths. Pumping at 1535 nm around the second zero-dispersion wavelength yields spectral broadening over 1350-1700 nm.
{"title":"Supercontinuum generation from 1350 to 1700 nm by nanosecond pumping near the second zero dispersion wavelength of a photonic crystal fiber","authors":"A. Boucon, D. Alasia, J. Beugnot, H. Maillotte, J. Dudley, T. Sylvestre","doi":"10.1109/LEOSWT.2008.4444442","DOIUrl":"https://doi.org/10.1109/LEOSWT.2008.4444442","url":null,"abstract":"We experimentally study supercontinuum generation in the nanosecond regime using a microstructured fiber with two zero dispersion wavelengths. Pumping at 1535 nm around the second zero-dispersion wavelength yields spectral broadening over 1350-1700 nm.","PeriodicalId":114191,"journal":{"name":"2008 IEEE/LEOS Winter Topical Meeting Series","volume":"51 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2008-01-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"126819199","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 : 2008-01-31DOI: 10.1109/LEOSWT.2008.4444474
A. Seddon, D. Furniss, L. Zheng, E. Bekker, T. Benson
Photonic crystal fibres (PCFs) offer unprecedented control over waveguide dispersion. Most development to date has centred upon silica glass PCFs. Here we review the state-of-the-art of PCFs made from novel glasses.
{"title":"Review of novel glass photonic crystal fibres.","authors":"A. Seddon, D. Furniss, L. Zheng, E. Bekker, T. Benson","doi":"10.1109/LEOSWT.2008.4444474","DOIUrl":"https://doi.org/10.1109/LEOSWT.2008.4444474","url":null,"abstract":"Photonic crystal fibres (PCFs) offer unprecedented control over waveguide dispersion. Most development to date has centred upon silica glass PCFs. Here we review the state-of-the-art of PCFs made from novel glasses.","PeriodicalId":114191,"journal":{"name":"2008 IEEE/LEOS Winter Topical Meeting Series","volume":"58 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2008-01-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"129642139","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 : 2008-01-31DOI: 10.1109/LEOSWT.2008.4444386
N. Baker, M. Roelens, S. Madden, B. Luther-Davies, C. D. de Sterke, B. Eggleton
The strong photosensitivity and nonlinearity of chalcogenide glass makes this material an ideal platform for Bragg soliton devices. We present the first nonlinear grating experiment in an integrated chalcogenide waveguide.
{"title":"Modulation-instability and pulse-train generation in a highly nonlinear Bragg grating","authors":"N. Baker, M. Roelens, S. Madden, B. Luther-Davies, C. D. de Sterke, B. Eggleton","doi":"10.1109/LEOSWT.2008.4444386","DOIUrl":"https://doi.org/10.1109/LEOSWT.2008.4444386","url":null,"abstract":"The strong photosensitivity and nonlinearity of chalcogenide glass makes this material an ideal platform for Bragg soliton devices. We present the first nonlinear grating experiment in an integrated chalcogenide waveguide.","PeriodicalId":114191,"journal":{"name":"2008 IEEE/LEOS Winter Topical Meeting Series","volume":"203 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2008-01-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"133183478","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 : 2008-01-14DOI: 10.1109/LEOSWT.2008.4444448
F. Smektala, J. Troles, P. Houizot, V. Nazabal, G. Boudebs, H. Zeghlache, Y. Quiquempois, G. Martinelli
Due to their intrinsic nature, chalcogenide glasses present attractive nonlinearities from third and second order, with values reaching between 10 and 1000 times those of silica. We present a study of their properties and their shaping with the purpose to reach efficient devices in the near-mid infrared.
{"title":"High third and second order non linearities of chalcogenide glasses and fibers for compact infrared non linear devices","authors":"F. Smektala, J. Troles, P. Houizot, V. Nazabal, G. Boudebs, H. Zeghlache, Y. Quiquempois, G. Martinelli","doi":"10.1109/LEOSWT.2008.4444448","DOIUrl":"https://doi.org/10.1109/LEOSWT.2008.4444448","url":null,"abstract":"Due to their intrinsic nature, chalcogenide glasses present attractive nonlinearities from third and second order, with values reaching between 10 and 1000 times those of silica. We present a study of their properties and their shaping with the purpose to reach efficient devices in the near-mid infrared.","PeriodicalId":114191,"journal":{"name":"2008 IEEE/LEOS Winter Topical Meeting Series","volume":"6 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2008-01-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"122412244","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 : 2007-11-12DOI: 10.1109/LEOSWT.2008.4444388
I. Hsieh, Xiaogang Chen, Xiaoping Liu, J. Dadap, N. Panoiu, C. Chou, F. Xia, William M. J. Green, Y. Vlasov, R. Osgood
We observe spectral broadening of more than 350 nm upon propagation of ultrashort pulses in a 4.7-mm-long silicon-photonic-wire waveguide. The output spectral characteristics are shown to be consistent, in part, with higher-order soliton radiative effects.
{"title":"Supercontinuum generation in silicon photonic wires","authors":"I. Hsieh, Xiaogang Chen, Xiaoping Liu, J. Dadap, N. Panoiu, C. Chou, F. Xia, William M. J. Green, Y. Vlasov, R. Osgood","doi":"10.1109/LEOSWT.2008.4444388","DOIUrl":"https://doi.org/10.1109/LEOSWT.2008.4444388","url":null,"abstract":"We observe spectral broadening of more than 350 nm upon propagation of ultrashort pulses in a 4.7-mm-long silicon-photonic-wire waveguide. The output spectral characteristics are shown to be consistent, in part, with higher-order soliton radiative effects.","PeriodicalId":114191,"journal":{"name":"2008 IEEE/LEOS Winter Topical Meeting Series","volume":"31 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2007-11-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"122147081","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}
W. Urbanczyk, T. Martynkien, G. Statkiewicz, A. Anuszkiewicz, J. Olszewski, G. Golojuch, M. Szczurowski, J. Wójcik, M. Makara, T. Nasilowski, F. Berghmans, H. Thienpont
This paper discusses the sensing capabilities of the highly birefringent index-guided photonic crystal fibers (PCFs) such as dispersion characteristics of phase and group modal birefringence, polarization characteristics, sensitivity to hydrostatic pressures, temperature, and strain. Different types of applications including interferometric and polarimetric sensors of different physical parameters as well as evanescent field sensors for monitoring specific chemical compounds in gases and liquids are reported.
{"title":"Photonic crystal fibers for sensing applications","authors":"W. Urbanczyk, T. Martynkien, G. Statkiewicz, A. Anuszkiewicz, J. Olszewski, G. Golojuch, M. Szczurowski, J. Wójcik, M. Makara, T. Nasilowski, F. Berghmans, H. Thienpont","doi":"10.1117/12.625947","DOIUrl":"https://doi.org/10.1117/12.625947","url":null,"abstract":"This paper discusses the sensing capabilities of the highly birefringent index-guided photonic crystal fibers (PCFs) such as dispersion characteristics of phase and group modal birefringence, polarization characteristics, sensitivity to hydrostatic pressures, temperature, and strain. Different types of applications including interferometric and polarimetric sensors of different physical parameters as well as evanescent field sensors for monitoring specific chemical compounds in gases and liquids are reported.","PeriodicalId":114191,"journal":{"name":"2008 IEEE/LEOS Winter Topical Meeting Series","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2005-09-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"125833060","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 : 1900-01-01DOI: 10.1109/leoswt.2008.4444422
coherent microscopic light sources. Chiral nematic, N*, (or cholesteric) liquid crystals spontaneously form a 1-dimensional photonic band gap for light due to the anisotropic nature of the molecules and their selforganizing supra-molecular structure. Through an intricate interaction of double twist cylinders Blue Phases I & II self assemble to form a disclination network that leads to a 3dimensional photonic band gap. We have studied the performance of such microscopic PBE lasers in both the chiral nematic phase and the recently discovered wide temperature range BP I. In this paper we will briefly describe the background to such lasers and then consider the key properties of the liquid crystal host that lead to high slope efficiency (~40%), low laser thresholds (~nJ/pulse), narrow line widths (<0.01nm) and quasicontinuous working (100Hz). We have studied a range of mesogens, mixtures and specifically bimesogenic liquid crystals [1-5]. The latter have been shown to dramatically improve the performance of PBE liquid crystal lasers. We have found that the birefringence and the orientation order parameter of the liquid crystals and the dye (as well as the spectral absorption coefficient and peak absorption wavelength), and the order parameter of the transition dipole moment of the guest dye, along with the elastic constants, were the key parameters that influenced markedly the performance of such PBE lasers [6-9]. Further, through cavity design/construction we can optimize the gain to give quasicontinuous working laser output. We will show how the narrow band output from these lasers may be wavelength tuned through the Flexoelectro-optic effect, Electrostriction or as a function of temperature. Laser output may be varied from the near ultra-violet to the near infra-red through materials composition and to some extent external field tuning. Specifically we will discuss how the use of electrically controlled “command” surfaces on the N* phase, and in the BP I phase, maybe used to tune the photonic band gap and therefore laser output wavelengths over, typically 100nm. The wavelengths are variable in an analogue and reversible manner with applied field. We will also describe emission in 2-D using lens let arrays and large area (0.5 x 0.5 cm), short cavity (15micron) lasers that allow us to further increase the energy densities available in such lasers. We describe wide temperature range new bimesogenic nematic liquid crystals with high Flexoelectro-optic coefficients (e/K), of the order of 2 CN m, high switching angles, up to 170o and microsecond response times which may be used to give the analogue tuning of the photonic band gap in both the Uniform Lying
相干显微光源。手性向列、N*、(或胆甾相)液晶由于分子的各向异性及其自组织的超分子结构而自发地形成一维光子带隙。通过双扭圆柱体的复杂相互作用，蓝相I和蓝相II自组装形成一个折射网络，导致三维光子带隙。我们研究了这种微型PBE激光器在手性向列相和最近发现的宽温度范围BP i中的性能。在本文中，我们将简要介绍这种激光器的背景，然后考虑液晶主机的关键特性，这些特性导致高斜率效率(~40%)，低激光阈值(~nJ/脉冲)，窄线宽(<0.01nm)和准连续工作(100Hz)。我们已经研究了一系列中胚层、混合物，特别是双胚层液晶[1-5]。后者已被证明可以显着改善PBE液晶激光器的性能。我们发现，液晶和染料的双折射和取向序参数(以及光谱吸收系数和峰值吸收波长)、客体染料的跃迁偶极矩序参数以及弹性常数是显著影响PBE激光器性能的关键参数[6-9]。此外，通过腔体设计/构造，我们可以优化增益，以提供准连续的工作激光输出。我们将展示这些激光器的窄带输出如何通过挠曲电光效应、电致伸缩或温度函数进行波长调谐。通过材料组成和一定程度的外场调谐，激光输出可以从近紫外变化到近红外。具体来说，我们将讨论如何在N*相位和BP I相位上使用电控“命令”表面，可能用于调整光子带隙，从而使激光输出波长超过，通常为100nm。波长随外加磁场以模拟和可逆的方式变化。我们还将描述使用透镜阵列和大面积(0.5 x 0.5 cm)，短腔(15微米)激光器的二维发射，这使我们能够进一步提高此类激光器中的可用能量密度。我们描述了宽温度范围的新型双致向列液晶，具有2 CN m量级的高挠曲电光系数(e/K)，高开关角，高达170°和微秒级的响应时间，可用于在均匀层和均匀层中进行光子带隙的模拟调谐
{"title":"High slope efficiency, low threshold and wavelength tunable liquid crystal lasers using bimesogenic materials: a route to quasi-continuous working and incoherent optical pumping?","authors":"","doi":"10.1109/leoswt.2008.4444422","DOIUrl":"https://doi.org/10.1109/leoswt.2008.4444422","url":null,"abstract":"coherent microscopic light sources. Chiral nematic, N*, (or cholesteric) liquid crystals spontaneously form a 1-dimensional photonic band gap for light due to the anisotropic nature of the molecules and their selforganizing supra-molecular structure. Through an intricate interaction of double twist cylinders Blue Phases I & II self assemble to form a disclination network that leads to a 3dimensional photonic band gap. We have studied the performance of such microscopic PBE lasers in both the chiral nematic phase and the recently discovered wide temperature range BP I. In this paper we will briefly describe the background to such lasers and then consider the key properties of the liquid crystal host that lead to high slope efficiency (~40%), low laser thresholds (~nJ/pulse), narrow line widths (<0.01nm) and quasicontinuous working (100Hz). We have studied a range of mesogens, mixtures and specifically bimesogenic liquid crystals [1-5]. The latter have been shown to dramatically improve the performance of PBE liquid crystal lasers. We have found that the birefringence and the orientation order parameter of the liquid crystals and the dye (as well as the spectral absorption coefficient and peak absorption wavelength), and the order parameter of the transition dipole moment of the guest dye, along with the elastic constants, were the key parameters that influenced markedly the performance of such PBE lasers [6-9]. Further, through cavity design/construction we can optimize the gain to give quasicontinuous working laser output. We will show how the narrow band output from these lasers may be wavelength tuned through the Flexoelectro-optic effect, Electrostriction or as a function of temperature. Laser output may be varied from the near ultra-violet to the near infra-red through materials composition and to some extent external field tuning. Specifically we will discuss how the use of electrically controlled “command” surfaces on the N* phase, and in the BP I phase, maybe used to tune the photonic band gap and therefore laser output wavelengths over, typically 100nm. The wavelengths are variable in an analogue and reversible manner with applied field. We will also describe emission in 2-D using lens let arrays and large area (0.5 x 0.5 cm), short cavity (15micron) lasers that allow us to further increase the energy densities available in such lasers. We describe wide temperature range new bimesogenic nematic liquid crystals with high Flexoelectro-optic coefficients (e/K), of the order of 2 CN m, high switching angles, up to 170o and microsecond response times which may be used to give the analogue tuning of the photonic band gap in both the Uniform Lying","PeriodicalId":114191,"journal":{"name":"2008 IEEE/LEOS Winter Topical Meeting Series","volume":"123 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":"133546267","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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