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Session Index

Optical Waveguides and Communications

Poster Session 2
Thursday, Dec. 4, 2014  16:40-17:50
Chair:
Room:
Notes:
17:00 - 17:50 Paper No.  2014-Thu-P0202-P002
Yi-Siang Yeh Analysis of Optimal Core Diameter for Terahertz Pipe waveguide
Yi-Siang Yeh,Chih-Hsien Lai,

Optimal core diameter of terahertz (THz) pipe waveguide, when the bent condition is taken into account, is investigated. Numerical results show that the small bending radius the pipe waveguide suffers, the small optimal core diameter it will have. Moreover, the optimal core diameter increases slightly with the bending length.

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17:00 - 17:50 Paper No.  2014-Thu-P0202-P005
Tu Duc Vu Guided-mode resonance enhanced near-infrared-to-visible upconversion fluorescence in a resonant waveguide grating
TuDuc Vu,HsuChen Chia,

Guided mode resonance (GMR) enhanced near-infrared (near-IR)-to-visible upconversion fluorescence (UCF) from a rare-earth doped polymer resonant waveguide grating (RWG), comprised of a NaYF4:Yb/Tm nanocrystals doped poly-methyl-methacrylate (NaYF4:Yb/Tm-PMMA) thin layer. The intensity of the UCF can be enhanced compared with that from a flat area by matching either incoming near-IR excitation or out-going UCF extraction to the GMR wavelengths

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17:00 - 17:50 Paper No.  2014-Thu-P0202-P008
Hsin-Feng Hsu Design, Fabrication, and Characterization of the Si-based ARROW-B Microring Resonators for WDM Applications
Hsin-Feng Hsu,Cheng-Hsiang Chang,Yang-Tung Huang,Meng-Feng Lu,Chyong-Hua Chen,

In this study, design, fabrication and characterization of the Si-based ARROW-B microring resonators for WDM applications were presented. The simulation results showed that the resonant wavelengths of these resonators were 1552.55 nm, 1556.74 nm, 1560.94 nm and 1565.13 nm, respectively. Compared with our measured drop wavelengths of 1553.35 nm, 1556.77 nm, 1559.31 nm and 1563.03 nm at through port, the deviations of resonant wavelengths were less than 0.1%.

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17:00 - 17:50 Paper No.  2014-Thu-P0202-P011
Wun-Hao Siao Faraday Rotator Mirror Based Single-longitudinal-mode Tunable Fiber Laser Using Saturable Absorber
Wun-Hao Siao,Shien-Kuei Liaw,

A single-longitudinal-mode selection is realised in a linear-cavity tunable fiber laser constructed using a Faraday rotator mirror and a fiber Bragg grating as the cavity ends. The measured optical signal-to-noise-ratio is larger than 40 dB with linewidth less than 1 MHz obtained using a saturable absorber asmode filter.

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17:00 - 17:50 Paper No.  2014-Thu-P0202-P014
Yi-Han Li Coupling Behaviors of Gain-Guided Index-Antiguided Slab Waveguides
Yi-Han Li,Sin-Jhe Huang,Chih-Hsien Lai,

We investigate the coupling behaviors of the slab type gain-guided index-antiguided (GGIAG) waveguides. It is found that the distance where one waveguide obtains maximum power and the distance where another waveguide has minimum power are different. The coupling length will be affected by the introduced gain in the core region.

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17:00 - 17:50 Paper No.  2014-Thu-P0202-P017
Chia-Lu Lin Bidirectional C+L band EDFA Using Pump Reflector for Recycling the Residual Pumping Power
Chia-Lu Lin,Shien-Kuei Liaw,

A bidirectional C+L band Erbium-doped fiber amplifier is proposed and demonstrated. Using 200 mW pump power at 1480 nm, the average gain is 15.4 dB and the average noise figure is 5.1 dB, respectively. The power penalty is less than 0.81 dB for a 75 km bidirectional transmission.

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17:00 - 17:50 Paper No.  2014-Thu-P0202-P020
Yu-Chu Lai Tunable Ytterbium Doped Fiber Lasers with Near Single Longitudinal Mode (SLM) Operation
Yi-Lin Yu,Yu-Chu Lai,W.C. Hsu,M.H. Shih,N.K. Chen,S.K. Liaw,

1064 nm band Yb doped fiber laser is investigated using fiber Bragg grating as cavity end. High slope efficiency of 50% and low threshold power are obtained. The power variation is less than 0.1 dB in 13 nm tuning span. Single frequency lasing is realized with 2 dBm output power.

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17:00 - 17:50 Paper No.  2014-Thu-P0202-P023
Zong-Sheng Xu Highly Birefringent THz Subwavelength Structure
Zong-Sheng Xu,Chih-Hsien Lai,

We propose a highly birefringent structure operating at terahertz frequencies, which is composed of two identical subwavelength dielectric wires placed in parallel. Numerical simulations show that high birefringence can be achieved with a magnitude up to 0.0512.

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17:00 - 17:50 Paper No.  2014-Thu-P0202-P026
Chun-Hao Lin Metal Strip Plasmonic Waveguides with Propagation-Length Improved Leaky Modes
Chun-Hao Lin,Hung-chun Chang,

The modes on the metal strip plasmonic waveguide are analyzed using with the finite element method. The leaky mode has lower propagation loss than the bound mode. An etched-substrate structure is proposed to improve both the confinement of modal fields and the propagation length of the leaky mode.

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17:00 - 17:50 Paper No.  2014-Thu-P0202-P029
Pin-Shao Chen Photonic Crystals on Printed Circuit Board
Pin-Shao Chen,Fu-Li Hsiao,

We design and simulate various One-dimensional photonic crystals on printed circuit board. In this report,we discuss the band structure, distribution of the electric field and slow light effect.

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17:00 - 17:50 Paper No.  2014-Thu-P0202-P031
Kuen-Wei Sung Acousto-optic interaction in one-dimensional photonic crystal fishbone nanocavity
Kuen-Wei Sung,Fu-Li Hsiao,

We investigate the acousto-optic coupling in 1-D fishbone nanocavity with simultaneous photonic and phononic bandgaps. The strength of the acousto-optic interaction can be estimated by coupling rate calculation, based on both photo-elastic and moving-boundary effects. Both contributions can be in phase or out of phase in the total acousto-optic coupling.

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17:00 - 17:50 Paper No.  2014-Thu-P0202-P034
Jhan-Guang Wang High birefringence photonic crystal fiber using rotational air hole in the fiber core
Jhan-Guang Wang,Yuh-Sien Sun,Gung-Jing He,Yuan-Fong Chau,

A high birefringence photonic crystal fiber with ultra-low confinement loss is proposed. An endlessly single mode, high birefringence 7.535×10-3, is found at the excitation wavelength at λ=1550 nm.

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17:00 - 17:50 Paper No.  2014-Thu-P0202-P035
Syuan Ruei Siao Analysis of the per-equalization circuit in LED module for visible light communication
SyuanRuei Siao,HisChao Chen,KuoTing Huang,GuanShyun Chen,IJu Liu,JuiTing Chi,

The purpose of this research is combined with white light illumination and visible light communication on a LED array. A pre-equalization circuit used to improve the sign of communication, such as the back-end processing circuitry could allow the transport frequencies up to 1MHz.

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17:00 - 17:50 Paper No.  2014-Thu-P0202-P038
Jia-Hao Tseng Bending Loss Analysis for Index Antiguided Fibers
Jia-Hao Tseng,Chih-Hsien Lai,

We numerically investigate the bending loss for index antiguided (IAG) fibers, in which the refractive index of the core is lower than that of the cladding. Numerical results show that, when the core diameter of the bent IAG fiber exceeds some critical value, the loss becomes core-independent.

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17:00 - 17:50 Paper No.  2014-Thu-P0202-P039
Jia Hao Yu 2X2 60-degree multimode waveguide turning Mirror coupler with an inverse power splitter
Chien Liang Chiu,Jia Hao Yu,

A novel inverse power splitter design is used by the 60 crossing as a fold plane. The 60-degree center-fold plane used by the self-image as the turning mirror is achieved to 2X2 60-degree multimode waveguide turning mirror coupler with inverse power splitter.

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17:00 - 17:50 Paper No.  2014-Thu-P0202-P042
Chan-You Li Standing wave patterns on the surface of an Au nanobar
Chan-You Li,Yuh-Sien Sun,Wayne Yang,Jia Shiuan Wu,Gung-Jing He,Yuan-Fong Chau,

We investigate the surface optical properties of a gold (Au) nanorod by using the finite-element method. We find that the near-field optical images show spatially oscillatory patterns on the surface of Au nanorod, and these phenomena are attributable to plasmon-mode wave functions.

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17:00 - 17:50 Paper No.  2014-Thu-P0202-P043
Hsuan-Yu Chen ARROW-Based Gain-Guided Index-Antiguided Fiber
Hsuan-Yu Chen,Chih-Hsien Lai,Cheng-Han Du,Yih-Peng Chiou,

An improved gain-guided index-antiguided (GGIAG) fiber is proposed, in that a dielectric layer is introduced between the low-index core and the high-index cladding. Numerical results show that the pump is well-confined by antiresonant reflection, so that the end-pumping efficiency can be enhanced significantly.

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17:00 - 17:50 Paper No.  2014-Thu-P0202-P046
Jheng-Hao Chen Design of Polarization Splitter in Two-Dimensional Honeycomb Photonic Crystal
Rei-Shin Chen,Jheng-Hao Chen,Yih-Bin Lin,Han-Bin Lin,

A compact waveguide polarization splitter in two-dimensional honeycomb photonic crystal is proposed. Both transverse electric and transverse magnetic wave are confined in the input waveguide. And the transverse electric wave is separated by the reflection effect, resulting in high polarization extinction ratio.

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Paper No.  2014-Thu-P0202-P047
Kai-Ting Hu Index Sensor Based on Tilted and Etched Fiber Bragg Grating
Kai-Ting Hu,Li-Wei Chen,Kuan-Ting Li,Hung-Ying Chang,Wen-Fung Liu,

An index sensor based on the cladding mode wavelength shift by using the tilted fiber Bragg grating (TFBG) is proposed to measure the liquid index variation and to observe the sensitivity effect in different cladding-thicknesses.

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