Pub Date : 2017-11-22DOI: 10.1109/CLEOPR.2017.8119064
K. Komatsu, G. Hosoya, H. Yashima
We propose an ultrafast all optical NOR gate for 160 Gb/s return-to-zero Gaussian data signals using a single quantum-dot semiconductor optical amplifier (QD-SOA) and optical filter (OF). By conducting numerical simulations, we investigate and evaluate the impacts of probe wavelength and power of the involved signals on the extinction ratio (ER) and Q2-factor. Results show that the proposed NOR gate can be achieved both with logical correctness and high quality when the specified conditions are satisfied.
{"title":"Simulation of all-optical NOR gate using single quantum-dot SOA and optical filter","authors":"K. Komatsu, G. Hosoya, H. Yashima","doi":"10.1109/CLEOPR.2017.8119064","DOIUrl":"https://doi.org/10.1109/CLEOPR.2017.8119064","url":null,"abstract":"We propose an ultrafast all optical NOR gate for 160 Gb/s return-to-zero Gaussian data signals using a single quantum-dot semiconductor optical amplifier (QD-SOA) and optical filter (OF). By conducting numerical simulations, we investigate and evaluate the impacts of probe wavelength and power of the involved signals on the extinction ratio (ER) and Q2-factor. Results show that the proposed NOR gate can be achieved both with logical correctness and high quality when the specified conditions are satisfied.","PeriodicalId":6655,"journal":{"name":"2017 Conference on Lasers and Electro-Optics Pacific Rim (CLEO-PR)","volume":"81 1","pages":"1-4"},"PeriodicalIF":0.0,"publicationDate":"2017-11-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"83900887","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 : 2017-11-22DOI: 10.1109/CLEOPR.2017.8119080
Yunhe Zhao, Changle Wang, Guolu Yin, B. Jiang, K. Zhou, C. Mou, Yunqi Liu, Lin Zhan, Tingyun Wang
We demonstrate a fiber specklegram sensor based on the twist-induced effect in tilted two-mode fiber Bragg gratings (TM-FBGs). The measured LP21 mode specklegram rotates 4.73 (radm−1) with twist in the tilted TM-FBGs.
{"title":"Fiber specklegram sensor based on the twist-induced effect in tilted two-mode fiber Bragg gratings","authors":"Yunhe Zhao, Changle Wang, Guolu Yin, B. Jiang, K. Zhou, C. Mou, Yunqi Liu, Lin Zhan, Tingyun Wang","doi":"10.1109/CLEOPR.2017.8119080","DOIUrl":"https://doi.org/10.1109/CLEOPR.2017.8119080","url":null,"abstract":"We demonstrate a fiber specklegram sensor based on the twist-induced effect in tilted two-mode fiber Bragg gratings (TM-FBGs). The measured LP<inf>21</inf> mode specklegram rotates 4.73 (radm<sup>−1</sup>) with twist in the tilted TM-FBGs.","PeriodicalId":6655,"journal":{"name":"2017 Conference on Lasers and Electro-Optics Pacific Rim (CLEO-PR)","volume":"238 1","pages":"1-3"},"PeriodicalIF":0.0,"publicationDate":"2017-11-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"76943134","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 : 2017-11-22DOI: 10.1109/CLEOPR.2017.8118766
Fangcheng Shen, Kaiming Zho, Lin Zhang, X. Shu
Long period grating with a grating period of 15 μm is fabricated with a femtosecond laser. Such a small period grating enables coupling of fundamental core mode with high order cladding modes that have effective refractive index close to water, and exhibits an enhanced sensitivity in low refractive index region.
{"title":"Small period long period grating with enhanced sensitivity in low refractive index region","authors":"Fangcheng Shen, Kaiming Zho, Lin Zhang, X. Shu","doi":"10.1109/CLEOPR.2017.8118766","DOIUrl":"https://doi.org/10.1109/CLEOPR.2017.8118766","url":null,"abstract":"Long period grating with a grating period of 15 μm is fabricated with a femtosecond laser. Such a small period grating enables coupling of fundamental core mode with high order cladding modes that have effective refractive index close to water, and exhibits an enhanced sensitivity in low refractive index region.","PeriodicalId":6655,"journal":{"name":"2017 Conference on Lasers and Electro-Optics Pacific Rim (CLEO-PR)","volume":"51 1","pages":"1-2"},"PeriodicalIF":0.0,"publicationDate":"2017-11-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"89494909","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 : 2017-11-22DOI: 10.1109/CLEOPR.2017.8119006
Nurul Ashikin Binti Daud, Y. Ooka, T. Tabata, T. Tetsumoto, T. Tanabe
We describe the fabrication and a demonstration of passive and active photonic crystal nanocavity devices, namely an electro-optic modulator, an all-silicon photodetector and a DeMUX filter. This is the first demonstration of active and passive photonic crystal nanocavity devices fabricated with a photolithographic process that may lead to future mass production.
{"title":"SiO2 clad active and passive photonic crystal nanocavity devices fabricated with photolithography: Toward future mass production of photonic crystal nanocavity devices","authors":"Nurul Ashikin Binti Daud, Y. Ooka, T. Tabata, T. Tetsumoto, T. Tanabe","doi":"10.1109/CLEOPR.2017.8119006","DOIUrl":"https://doi.org/10.1109/CLEOPR.2017.8119006","url":null,"abstract":"We describe the fabrication and a demonstration of passive and active photonic crystal nanocavity devices, namely an electro-optic modulator, an all-silicon photodetector and a DeMUX filter. This is the first demonstration of active and passive photonic crystal nanocavity devices fabricated with a photolithographic process that may lead to future mass production.","PeriodicalId":6655,"journal":{"name":"2017 Conference on Lasers and Electro-Optics Pacific Rim (CLEO-PR)","volume":"2 1","pages":"1-2"},"PeriodicalIF":0.0,"publicationDate":"2017-11-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"89630672","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 : 2017-11-22DOI: 10.1109/CLEOPR.2017.8118693
Tianxing Wang, Zhijun Yan, C. Mou, K. Zhou, Lin Zhang
We generate a passively nanosecond Q-switching by inserting a Brewster fiber grating which induces the nonlinear polarization rotation (NPR) effect. In our experiment, Q-switched pulses with pulse width of 502 ns, repetition rate of 207.5 kHz, output power of 12.7 mW and single pulse energy of 61.2 nJ are achieved under the pump power of 450 mW.
{"title":"Passive Q-switching generation from an erbium-doped fiber laser using a Brewster fiber grating","authors":"Tianxing Wang, Zhijun Yan, C. Mou, K. Zhou, Lin Zhang","doi":"10.1109/CLEOPR.2017.8118693","DOIUrl":"https://doi.org/10.1109/CLEOPR.2017.8118693","url":null,"abstract":"We generate a passively nanosecond Q-switching by inserting a Brewster fiber grating which induces the nonlinear polarization rotation (NPR) effect. In our experiment, Q-switched pulses with pulse width of 502 ns, repetition rate of 207.5 kHz, output power of 12.7 mW and single pulse energy of 61.2 nJ are achieved under the pump power of 450 mW.","PeriodicalId":6655,"journal":{"name":"2017 Conference on Lasers and Electro-Optics Pacific Rim (CLEO-PR)","volume":"33 1","pages":"1-2"},"PeriodicalIF":0.0,"publicationDate":"2017-11-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"86651637","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 : 2017-11-22DOI: 10.1109/CLEOPR.2017.8118941
Tianxing Wang, Chuanhang Zou, Zhijun Yan, Qianqian Huang, C. Mou, K. Zhou, M. Alaraimi, A. Rozhin, Lin Zhang
We demonstrate a continuous tunable mode locked Erbium fiber laser using a tilted fiber grating based birefringent filter and carbon nanotube based saturable absorber. The central wavelength can be tuned from 1558 nm to 1564 nm while maintaining ultrashort pulse emission.
{"title":"Tunable mode locked Erbium-doped fiber laser based a tilted fiber grating and carbon nanotube saturable absorber","authors":"Tianxing Wang, Chuanhang Zou, Zhijun Yan, Qianqian Huang, C. Mou, K. Zhou, M. Alaraimi, A. Rozhin, Lin Zhang","doi":"10.1109/CLEOPR.2017.8118941","DOIUrl":"https://doi.org/10.1109/CLEOPR.2017.8118941","url":null,"abstract":"We demonstrate a continuous tunable mode locked Erbium fiber laser using a tilted fiber grating based birefringent filter and carbon nanotube based saturable absorber. The central wavelength can be tuned from 1558 nm to 1564 nm while maintaining ultrashort pulse emission.","PeriodicalId":6655,"journal":{"name":"2017 Conference on Lasers and Electro-Optics Pacific Rim (CLEO-PR)","volume":"79 1","pages":"1-2"},"PeriodicalIF":0.0,"publicationDate":"2017-11-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"88584890","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 : 2017-11-22DOI: 10.1109/CLEOPR.2017.8118970
S. Chua, N. Guo, ChingSeong Tan, K. Chew, S. Chang, Xin Wang
Despite the advances made in laser and sensor technology, setting up an accurate range gated imaging system remains a challenge. In this paper, we emphasise on the importance of system setup and its impacts to the performance of three-dimensional (3D) range gated reconstruction. Study is performed to analyse some of the system setup criteria and parameters involved in the laser and camera synchronisation, images acquisition and reconstruction, and illumination setup. It is hoped that the presented findings establish better understanding of the setup influences in range gated reconstruction and contribute to optimise the system performance.
{"title":"System setup consideration for range gated imaging","authors":"S. Chua, N. Guo, ChingSeong Tan, K. Chew, S. Chang, Xin Wang","doi":"10.1109/CLEOPR.2017.8118970","DOIUrl":"https://doi.org/10.1109/CLEOPR.2017.8118970","url":null,"abstract":"Despite the advances made in laser and sensor technology, setting up an accurate range gated imaging system remains a challenge. In this paper, we emphasise on the importance of system setup and its impacts to the performance of three-dimensional (3D) range gated reconstruction. Study is performed to analyse some of the system setup criteria and parameters involved in the laser and camera synchronisation, images acquisition and reconstruction, and illumination setup. It is hoped that the presented findings establish better understanding of the setup influences in range gated reconstruction and contribute to optimise the system performance.","PeriodicalId":6655,"journal":{"name":"2017 Conference on Lasers and Electro-Optics Pacific Rim (CLEO-PR)","volume":"41 5","pages":"1-5"},"PeriodicalIF":0.0,"publicationDate":"2017-11-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"72593911","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 : 2017-07-31DOI: 10.1109/CLEOPR.2017.8118864
Guangyuan Li, C. D. de Sterke, S. Palomba
An upper limit of achievable nonlinearities in term of the maximum nonlinear index change Awmax exists for any Kerr nonlinear material, because of optical damage, saturation, or high-order effects. Taking advantage of slow-light effects, a photonic-crystal waveguide can enhance nonlinear effects and achieve more effective nonlinearities than the bulk material, i.e., Δneff > Δwmax. However, this slow-light enhancement relies on a structural resonance and is thus narrowband. Here we report broadband slow-light enhancement of nonlinear effects using plasmonic metal-dielectric-metal (MDM) waveguides. We show that MDMs structure with a thin nonlinear dielectric layer can have strikingly large effective nonlinearity, more than ten times that of the material nonlinearity, over a large bandwidth. This is because MDM structures are uniquely capable of combining broadband slow-light effects and efficient use of the nonlinear material. We expect this work to advance the development of high performance Kerr nonlinear nanophotonic devices.
{"title":"Broadband slow-light enhancement of nonlinear effects with plasmonic structures","authors":"Guangyuan Li, C. D. de Sterke, S. Palomba","doi":"10.1109/CLEOPR.2017.8118864","DOIUrl":"https://doi.org/10.1109/CLEOPR.2017.8118864","url":null,"abstract":"An upper limit of achievable nonlinearities in term of the maximum nonlinear index change Awmax exists for any Kerr nonlinear material, because of optical damage, saturation, or high-order effects. Taking advantage of slow-light effects, a photonic-crystal waveguide can enhance nonlinear effects and achieve more effective nonlinearities than the bulk material, i.e., Δneff > Δwmax. However, this slow-light enhancement relies on a structural resonance and is thus narrowband. Here we report broadband slow-light enhancement of nonlinear effects using plasmonic metal-dielectric-metal (MDM) waveguides. We show that MDMs structure with a thin nonlinear dielectric layer can have strikingly large effective nonlinearity, more than ten times that of the material nonlinearity, over a large bandwidth. This is because MDM structures are uniquely capable of combining broadband slow-light effects and efficient use of the nonlinear material. We expect this work to advance the development of high performance Kerr nonlinear nanophotonic devices.","PeriodicalId":6655,"journal":{"name":"2017 Conference on Lasers and Electro-Optics Pacific Rim (CLEO-PR)","volume":"18 1","pages":"1-2"},"PeriodicalIF":0.0,"publicationDate":"2017-07-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"74418284","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 : 2017-07-31DOI: 10.1109/CLEOPR.2017.8118930
Boyu Liu, Yong Zhang, Yu He, Xinhong Jiang, Ciyuan Qiu, Yikai Su
We experimentally demonstrate a compact silicon contradirectional coupler with high sidelobe suppression by using apodized subwavelength grating waveguide. A suppression ratio of higher than 20 dB is achieved with a ∼100-pm coupling length.
{"title":"High-suppression-ratio silicon bandpass filter using apodized subwavelength grating coupler","authors":"Boyu Liu, Yong Zhang, Yu He, Xinhong Jiang, Ciyuan Qiu, Yikai Su","doi":"10.1109/CLEOPR.2017.8118930","DOIUrl":"https://doi.org/10.1109/CLEOPR.2017.8118930","url":null,"abstract":"We experimentally demonstrate a compact silicon contradirectional coupler with high sidelobe suppression by using apodized subwavelength grating waveguide. A suppression ratio of higher than 20 dB is achieved with a ∼100-pm coupling length.","PeriodicalId":6655,"journal":{"name":"2017 Conference on Lasers and Electro-Optics Pacific Rim (CLEO-PR)","volume":"24 1","pages":"1-2"},"PeriodicalIF":0.0,"publicationDate":"2017-07-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"72959970","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 : 2017-07-31DOI: 10.1109/CLEOPR.2017.8118963
Elizabeth Lee, Y. S. Chung, Xia Yu, Qijie Wang, F. Yu, J. Knight
Differential-pressured argon-filled negative curvature hollow-core fiber (NC-HCF) with an anomalous dispersion in the mid-infrared was studied for pulse compression. Preliminary simulation results show compression of 2-micron, 1.8-ps, 50 μJ pulse to 110 fs by using a negative-pressure-gradient argon-filled 8.2 m-long NC-HCF at a maximum pressure of 2.65 bar.
{"title":"2-micron Pulse compression using gas-filled negative curvature hollow-core fiber","authors":"Elizabeth Lee, Y. S. Chung, Xia Yu, Qijie Wang, F. Yu, J. Knight","doi":"10.1109/CLEOPR.2017.8118963","DOIUrl":"https://doi.org/10.1109/CLEOPR.2017.8118963","url":null,"abstract":"Differential-pressured argon-filled negative curvature hollow-core fiber (NC-HCF) with an anomalous dispersion in the mid-infrared was studied for pulse compression. Preliminary simulation results show compression of 2-micron, 1.8-ps, 50 μJ pulse to 110 fs by using a negative-pressure-gradient argon-filled 8.2 m-long NC-HCF at a maximum pressure of 2.65 bar.","PeriodicalId":6655,"journal":{"name":"2017 Conference on Lasers and Electro-Optics Pacific Rim (CLEO-PR)","volume":"161 1","pages":"1-2"},"PeriodicalIF":0.0,"publicationDate":"2017-07-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"73336138","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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