Session Index

Optical Waveguides and Communications

Poster Session Ⅱ
Saturday, Dec. 5, 2015  17:10-18:00
Chair:
Room:
Notes:
Paper No.  2015-SAT-P0202-P001
CHEN JHIH YU Employing Erbium-Doped Fiber Laser Architecture for FBG-Based Remote Temperature Sensing


In this paper, we use an erbium-doped fiber ring laser and FBGs for remote temperature sensing in a 50 km fiber long. Here, the maximum 0.84 nm wavelength shift of FBG sensor is measured in the temperature range of 20 to 82 C

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Paper No.  2015-SAT-P0202-P002
Nai-Hsiang Sun Manufacture high order Bragg gratings for fibers using high power femtosecond laser system


In this paper, a femtosecond laser is used to fabricate high-order fiber Bragg gratings (FBGs). The high order fiber gratings with grating periods of 21μm and 22μm are fabricated in this paper. The resonant regions can be measured in the reflection spectrum.

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Paper No.  2015-SAT-P0202-P003
Sally Fahdarina Flat Top Response Simulation Design of Simple Rowland Echelle Grating


This paper presents the design and simulation of a simple Rowland echelle grating using silicon-on-insulator (SOI) material to observe what kind of parameters that affect the flat top transmission spectra response. The simulation was done by tuning the width parameter of the output waveguide or the output cladding.

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Paper No.  2015-SAT-P0202-P004
Kun-Lin Hsieh Characteristic Investigation of DSB-to-SSB Conversion for Radio-over-Fiber Links Using Semiconductor Lasers at Stable Locking Dynamic


Stable locking dynamics of semiconductor lasers was proposed for DSB-to-SSB conversion. In this study, the characteristics will be investigated for the tunability of operating microwave frequency. The adaptability to the fluctuations of operating conditions will be discussed as well by measuring the phase noises.

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Paper No.  2015-SAT-P0202-P005
Wei-Ming Chen Acousto-optic coupling in an one dimensional fishbone nanocavity


We demonstrate the acousto-optical (AO) interaction in a phoxonic crystal nanobeam cavity with both optical resonant mode and acoustic resonant mode. The optical wavelength of the designed structure is in the optical communication band, while the acoustic frequency is in the GHz frequency range. Confining phonon and photon within cavity could enhance AO interaction. The strength of the AO interaction can be estimated by calculating the coupling rate, based on photo-elastic effect and moving boundary effect.

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Paper No.  2015-SAT-P0202-P006
Li-Ting Gao Generation and Transmission of Gaussian Derivative Pulses with SOA-Based and Er-Doped Fiber Lasers


Gaussian derivative pulses are generated in SOA-based and erbium-doped fiber lasers using passive optical technology. The RF spectra of SOA-based fiber laser can be tuned to comply with the ultrawideband spectral mask. For both lasers, temporal and spectral evolutions of the monocycle pulses in single-mode fibers have been studied.

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Paper No.  2015-SAT-P0202-P007
Chen Yen Cheng Design of 10-Gb/s CMOS Transimpedance Amplifier with Single-to-Differential Circuit


In this paper, a 10-Gb/s Transimpedance Amplifier(TIA) is realized in 0.18-μm CMOS technology. The bandwidth of this circuit is about 7-GHz and its data transmission rate can be 10-Gb/s. The power dissipation of the chip is about 57.228 mW, and the area of full chip is 561.035um×559.995 μm2.

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Paper No.  2015-SAT-P0202-P008
Pei-Xian Xu Symmetry of Fiber Index Profiling with Varying Light Coherency


Two-dimensional refractive index profile of a single-mode fiber operated at 633nm is reconstructed from measured guiding mode profile and its spatial derivatives by a modified end-fire coupling method. Symmetry of index profile is estimated under varying light coherency, controlled by moving a diffuser away from the focal plane.

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Paper No.  2015-SAT-P0202-P009
Hsi-Yang Hsu Diffusion and photoluminescence properties of ytterbium-doped lithium niobate


Ytterbium ions are diffused into lithium niobate and their diffusion/photoluminescence characteristics are studied. The concentration distributions of the ytterbium ions are measured by secondary ion mass spectroscopy and the calculated diffusion coefficient is 2.809×10-13(cm2/sec). For the excitation wavelength of 532nm, the main light emission wavelength is around 980nm.

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Paper No.  2015-SAT-P0202-P010
Yong-Hang Wu Surface-Plasmon of Metallic Grating in PCF Sensor


We analyze the surface-plasmon PCF sensor with metallic grating by numerical modeling. The fiber sensor can be manufactory by side-polishing a photonic crystal fiber and sputtering the metal thin-film on polished plane with grating structure. We evaluate the performance of the fiber sensor and find the operation wavelength shifted.

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Paper No.  2015-SAT-P0202-P011
Tsu Te Kung Pump and Signal Four Wave Mixing in the Forward Pump Raman Amplifier through Large Effective Area


Maximum four wave mixing (FWM) for reproduction of Fabry-Perot (FP) spectra to the singlewavelength probe signal is the consequence of minimum phase mismatch with equal group delay or group index for the pump and signal. Less FWM efficiency and less number of FP wavelengths generated with unequal group index.

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Paper No.  2015-SAT-P0202-P012
Meng-Zhu Zhang All-fiber Mach-Zehnder interferometer for sensing applications.


All fiber Mach–Zehnder interferometer (MZI) device is fabricated by cascading a short section of liquid crystal (LC)-filled hollow-optic fiber (HOF) between two single mode fibers by using automatically splicing technique). Since the LC material inside HOF has high sensitivity characteristics, the MZI is highly sensitive to external refractive index (RI) changes. In this work, the all fiber LC-MZI is proposed as a refractive index sensor. The experimental results show that wavelength shift of MZIs induced by external RI is function of the aqueous solution concentration. We find the wavelength red shift 16.4nm and 13.4nm are achieved for the concentrations of glucose and sodium benzoate solution from 0% to 80% and 0% to 50%, respectively.

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Paper No.  2015-SAT-P0202-P013
Ching-Hung Chang Investigation of employing a semiconductor laser as an optical band-pass filter


A semiconductor laser vertical-cavity surface-emitting laser (VCSEL) composed tunable optical band-pass filter (TOBPF). By changing the VCSEL driving current, the pass-band window of TOBPF can be shifted to align with any interesting injected lightwave and to block the others.

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Paper No.  2015-SAT-P0202-P014
Ying-Chun Chen DWDM Transceivers for 120-km Long-Reach TWDM-PON


We propose and demonstrate an aggregated 160 Gb/s 120 km long-reach time-and-wavelength division multiplexed passive optical network (LR-TWDM-PON) using existing Gigabit-Ethernet (GbE) transceiver (TRx). Error-free transmission is achieved in the 120 km LR-TWDM-PON without dispersion compensation and optical amplifier.

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Paper No.  2015-SAT-P0202-P015
Chun-Ting Li Radio-on-Fiber Transmissions with Stuffed Quadratic Congruence Coding over OCDMA Network


A Radio over fiber (RoF) network based on optical code division multiple access (OCDMA) with spectral amplitude coding (SAC) is proposed to provide transmissions between central office (CO) and base stations (BSs). Stuffed quadratic congruence (SQC) code are used to identify the desired user and suppress the noise effect.

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Paper No.  2015-SAT-P0202-P016
I-Chun Lien Design and Fabrication of Near Infrared Germanium Photodetectors


In this investigation, an interdigitated pattern was designed as the electrodes on Ge devices with a relative easy process for high-speed devices. There were three different substrates applied to fabricate the near infrared Ge photodetectors including n-Si, p-Ge and i-Ge/n-Si. Responsivity and frequency response are measured and analyzed with good results.

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Paper No.  2015-SAT-P0202-P017
Kai-Jie You Erbium ion diffusion in LiNbO3 and its photoluminescence characteristics


LiNbO3 is doped with erbium(Er) ions by thermal diffusion. The ion concentration distributions for different diffusion times are measured by SIMS and the diffusion coefficient is calculated. The measured photoluminescence characteristics show that for the excitation wavelength of 532nm, the main light emission wavelength is around 550nm.

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Paper No.  2015-SAT-P0202-P018
Liao Chen Hong Optical single sideband modulation Using Fiber Nonlinearity and Injection Locked Technique


We propose a novel bidirectional transmission system based on stimulated Brillouin scattering (SBS) effect and injection locked distributed-feedback (DFB) laser to achieve optical single sideband (OSSB) modulation for downlink transmission. For uplink transmission, we reuse transmitting light by 10.8 GHZ and 8 GHZ in an Mach-Zehnder modulator (MZM) to reduce signal interference each other in bidirectional transport. After 25 km single mode fiber (SMF) transmission, we can observe the sideband power ratio (SBPR) > 15 dB for downlink transmission and system’s power penalty is < 5 dB. Good performances for bit error rate (BER) analysis are observed in our proposed bidirectional transmission system.

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Paper No.  2015-SAT-P0202-P019
Kevin Liang Smartphone-based Visible Light Communication


We demonstrate using smartphone with embedded CMOS sensor as optical receiver for visible light communication (VLC). By using the rolling shutter effect of the CMOS sensor, smartphone camera can receive signals higher than the frame rate. We also present synchronous scheme for clock recovery.

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Paper No.  2015-SAT-P0202-P020
Ruey-Ching Twu Nonlinear Birefringent Plate for Optical Angle Measurements


The nonlinear birefringent plates for optical angle measurements have been studied by theoretical analysis and experimental measurement. The results indicate that the BBO sensor has better phase stability and higher sensitivity than the KTP one.

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Paper No.  2015-SAT-P0202-P021
Chen-Tai Cheng Design and Application of Fruit Brix Fiber Sensors


In this paper, a fiber-optic sensor based on long-period fiber grating (LPG) is employed to measure the Brix of fruit. Experimental results shows that the proposed sensor for fruit juice could be successfully detected.

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Paper No.  2015-SAT-P0202-P022
Li-Ting Gao Experimental Observation of Vector Pulse Shaping in an SOA-Based Fiber Laser


Vector pulses are experimentally observed in an SOA-based fiber laser, in which the rectangular, sinusoidal, triangular, staircase, high-repetition, and ultrawideband Gaussian derivative states can be obtained by using passive optical technology. Polarization-splitting measurements of waveforms, optical spectra, and RF spectra are conducted to confirm the vector nature of observed pulses.

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Paper No.  2015-SAT-P0202-P023
Wang Po-Yun High speed electroabsorption modulator–integrated DFB laser with semiconductor optical amplifier


Semiconductor optical amplifier (SOA) is integrated with electroabsorption modulator (EAM) and DFB laser. Not only high speed but also the amplification has been realized in photonic integration, enabling long distance and chirp control function of optical signal transmission.

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Paper No.  2015-SAT-P0202-P024
Wen-Zhong Zhang A Study of Optical Steganography Transmission of Optical CDMA Signals


Optical steganography is applied to a public optical binary phase-shift keying (BPSK) by transmitting a stealth optical code-division multiple-access (OCDMA) signal through a BPSK link. The proposed optical steganography increases an eavesdropper’s difficulty of detecting and intercepting of the hidden stealth channel under public transmission, even using dispersion compensation scheme.

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Paper No.  2015-SAT-P0202-P025
Tsu Te Kung Four-wave Mixing Efficiency between Different Pump and Signal Wavelengths in Forward Pump Raman Amplifier


Four wave mixing between 14xx nm pump and 15xx nm signal in a forward-pumped Raman amplifier was experimentally observed in 25 km of LEAF fiber. The FWM efficiency which is determined by the fiber group delay or dispersion characteristics will be investigated in this work.

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Paper No.  2015-SAT-P0202-P026
JerShien Chen Hybrid Monopoly Estimation Model of Clock Source Selection in All Optical Networks


We propose an evaluation model of establishing all optical network element with monopoly advantage from the practical point view of intellectual property protection. Evaluation of investment budge or invention cost and patent potential advantage are critical in setting all optical network clock source.

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Paper No.  2015-SAT-P0202-P027
Lin Bo-Jyun W-band OFDM RoF System with Square-Law Power Detector


This article proposes W-band OFDM RoF system at 103.5 GHz employing Power Detector down-conversion. It can support vector signal down-conversion and doesn’t need the LO in BS. The data rate of W-band OFDM signals with 10-GHz bandwidth can achieve 40 Gbps over 25-km fiber and 2-m wireless transmission.

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Paper No.  2015-SAT-P0202-P028
HUANG YAO LUN W-band OFDM RoF Systems Enabling Low-Sampling-Rate ADCs and Digital Preprocess


A simple low-sampling-rate receiving scheme is proposed for W-band OFDM-RoF systems. Using the proposed preprocess, aliasing-free subcarriers can be received, and employing the optimized delays to ADCs can achieve the performance insensitive to sampling rate.

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Paper No.  2015-SAT-P0202-P029
Heng-Jia Liu Concentric-circle scanning algorithm of active alignment for waveguide coupler


We developed the concentric-circle scanning algorithm to improve the speed and accuracy of active alignment. Our algorithm has a prediction system that can feedback direction information, so the searching path and time can be significantly reduced. In experiments, the coupling efficiency is 8% more than conventional method in 10 minutes.

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Paper No.  2015-SAT-P0202-P030
Andrew Fernando Pakpahan Software-Defined Multi-PON: Architecture and Operation


Softwared-defined networking (SDN) brings hopes in providing better approach solutions in managing growing PON complexity, and can convey new flexible services faster to users. In this paper an architecture which added OpenFlow functionality to Multi-PON system and Sofware-Defined OLT and Software-Defined ONU are proposed.

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Paper No.  2015-SAT-P0202-P031
Yi-Ting Hsieh Design and Fabrication of Optical Fiber Weight Sensors


This study proposes an optical fiber weight sensors. The optical fiber sensor was designed by utilizing the bending loss mechanism of single-mode fiber. Using mold silicone (SC-877) as sensing medium and measuring the optical power loss. Results show that weight sensors in the measuring range of 0 to 125 kg.

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Paper No.  2015-SAT-P0202-P032
Rei-Shin Chen Design of High-Efficiency 1x3 Photonic Crystal Power Divider with a Capsule-Shaped Air Hole


High-transmission 1x3 photonic crystal power divider with a capsule-shaped air hole is proposed and simulated. The capsule-shaped air hole is employed to tune power splitting ratio and to improve impedance matching at the junction. Equal-power splitting with normalized total transmission 0.983 is achieved at 1552 nm wavelength.

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Paper No.  2015-SAT-P0202-P033
Rei-Shin Chen Design of High-Efficiency Photonic Crystal Wavelength Filter with a Ring Resonator


High-efficiency photonic crystal wavelength filter with a ring resonator is proposed and simulated. Radius or refractive index of the 5x5 rods in the ring resonator can be varied to tune its transmission spectrum. Wavelength filters with channel spacing of 0.8 nm and extinction ratio of 20 dB are also designed.

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Paper No.  2015-SAT-P0202-P034
Yi-Cheng Hsu The effect of different taper manufacturing process on tapered fiber sensor employed fiber loop mirror interferometer


In this study, the taper fibers of the fiber loop mirror interferometer (FLMI) was fabricated in two different ways, single fusion-stretching (SFS) and multiple fusions with single stretching (MFSS). Experiment results shows the FLMI with taper fiber fabricated by SFS performs better sensing sensitivity.

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Paper No.  2015-SAT-P0202-P035
Rei-Shin Chen Study of Photonic Crystal Directional Couplers with Symmetric or Point-Symmetric Coupling Structures


Photonic crystal directional couplers with symmetric or point-symmetric structures are studied. Power transfer in the coupling region is not obvious but can be enhanced by decreasing the radius of separating air holes or by tilting the incident phase front. Point-symmetric directional coupler results in reduced coupling and flattened spectrum.

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Paper No.  2015-SAT-P0202-P036
Guang Jhan Wang Study of surface plasma effects on a periodic array of silver nano bead stick


We investigate the optical proporities on a periodic array of silver nano bead stick which is connected by a nonobar and is filled with the different dielectric media inside the nanobead. Simulation results can help us to know the physical mechanism of different near field intensities on the metallic nanoparticles. The surface plasmon effects between the metallic nanoparticles and the incident field have been studied as well in this paper.

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Paper No.  2015-SAT-P0202-P037
Rei-Shin Chen High-Transmission Broadband Photonic Crystal Waveguide Bends by Radial Air Holes at the Bending Corner


High-transmission photonic crystal 60o and 120o waveguide bends with broad bandwidths are proposed by introducing defect air holes along a circular arc at the bending corner. Normalized bandwidths of 74.4% and 83.1% can be achieved for 60o and 120o bends, respectively, by tuning the radii of defect holes.

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Paper No.  2015-SAT-P0202-P038
Zhu Qing-Song The research of fabricating sub-wavelength grating structure on planar waveguide


In this study,laser interference lithography is used to make sub-wavelength grating on planar waveguide which will be a coupling device on glass substrate. The purpose is to reduce device size and enhance coupling efficiency. We developed this device and designed the device using the Finite-Difference Time-Domain(FDTD) method. The grating period, depth, fill factor, film thickness and different grating structure will be discussed to enhance coupling efficiency and reduced coupling angle. According to the simulation results, when the wavelength is 532 nm , the grating period is 300 nm and the ta2o5 film is 100 nm which had the optimum coupling efficiency and minimum coupling angle.

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Paper No.  2015-SAT-P0202-P039
Yo Chuan Lee Investigation of surface plasmon effects on gold/gold-shell nanobar by using the finite element method


We investigate the surface plasmon effects on gold/gold-shell nanobar by using the finite element method in a three-dimensional mod el. Results from the near-field optical images show spatially oscillatory patterns (nodal fields) on the surface, and these are attributable to plasmon-mode wave functions.

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Paper No.  2015-SAT-P0202-P040
Cyuan Jhih Jiang Surface plasmon effects on the periodic array of trapezium outline with cavity plasmonic nanoantenna


In this paper, we investigate the surface plasmon effects on the periodic array of trapezium outline with cavity plasmonic nanoantenna by mean of finite element method. Simulation results show that the performance of surface plasmon effects can be significantly enhanced as the outline shell thickness of the plasmonic nanoantenna are t=5nm,10nm and 5nm, respectively.

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Paper No.  2015-SAT-P0202-P041
Tsu Te Kung Raman Gain in Forward and Backward Pumped Schemes through Optical Fibers with Different Effective Core Areas and Gain Coefficients


In order to obtain the larger Raman gain, one can choose the larger Raman gain coefficient and smaller effective core area. Maximum FWM for generation of Raman gain dip is the consequence of minimum phase mismatch due to equal group delay for the pump and its corresponding signal wavelength.

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Paper No.  2015-SAT-P0202-P042
Ting-Yi Lin The study of fiber planar waveguide coupling


Well know for the connection of planar silicon waveguide with optical fiber, belonging to the butt-coupled . We attempt to study the fiber-planar waveguide coupling in order to develop a new type of specialty optical fiber for fiber and planar waveguide integration device. Integration of the characteristics of waveguides and semiconductor components

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Paper No.  2015-SAT-P0202-P043
Jhih Yu Syu Investigation of surface plasmon effects on cross patern of silver/silver-shell nanorod


We investigate the surface plasmon effects on the cross pattern of silver/silver-shell nanorod by using the finite element method in a three-dimensional model. The optical properties related to the interaction between the incident light and the nanorod are discussed in detail in this paper.

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Paper No.  2015-SAT-P0202-P044
Yu Jhih Rao Analysis of the optical properties of a periodic array of multi-pairs cavity bow-tie plasmonic nanoantenna by using finite element method


Abstract— In this paper, we numerically investigate the optical properties of a periodic array of plasmonis nanoantenna by using finite element method in three dimensional calculations. We compare the discrepancy between the solid and outline cases Numerical results show that the proposed structure is better than that of solid counterpart.

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