Student Paper Award Announced!!

Session Index

Optical Waveguides and Communications

Oral Session 5 - Sensors and Waveguides
Friday, Dec. 5, 2014  11:10-12:10
Chair: Chi-Hung Lee
Room: F6
Notes: N/A
11:10 - 11:25 Paper No.  2014-FRI-S0207-O001
Chun-Sheng Shin Temperature-insensitive Refractive Index Fiber Laser Sensor Based on PCF-based Mach-Zehnder Interferometers Formed by Misaligned Splicing
Chun-Sheng Shin,Chin-Ping Yu,

A PCF-based Mach-Zehnder interferometer formed by misaligned splicing a PCF between two SMFs is inserted into an EDF ring laser for refractive index (RI) sensing. The measurement accuracy is highly enhanced, and the measured RI sensitivity is 59.43 nm/RIU with a very low temperature sensitivity of 7.5 pm/℃.

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11:25 - 11:40 Paper No.  2014-FRI-S0207-O002
Chih-Wei Wu Tunable and multi-stable variable optical attenuator fabricated by infiltrating a photonic crystal fiber with a liquid crystal gel
Chih-Wei Wu,Chun-Hong Lee,Chun-Wei Chen,Hung-Chang Jau,Tsung-Hsien Lin,

Tunable and Multi-stable variable optical attenuator(VOA) based on a liquid crystal (LC)gel-filled photonic crystal fiber(PCF) is demonstrated. Varying the cooling rate or biasing the electric field during gelation yields various degrees of scattering. At 1550 nm, an attenuation rate of −33.4 dB ∕cm is obtained at a cooling rate of 30°C/min and a applying 400 V during gelation.

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11:40 - 11:55 Paper No.  2014-FRI-S0207-O003
Cheng-Pu Ho Analysis of Coupled Optical Wavequides using Shortcuts to Adiabaticity
Tien-Chien Lin,Cheng-Pu Ho,Shuo-Yen Tseng,

We discuss shortcuts to adiabaticity in coupled optical waveguides using counter-diabatic and non-Hermitian shortcuts in sinusoidal model. We compare the tolerance of parameters of these shortcuts by fidelity. The analysis shows that adiabatic passage can be sped up by using shortcuts, and non-Hermitian shortcut has the advantage larger tolerance.

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11:55 - 12:10 Paper No.  2014-FRI-S0207-O004
Bai-Ci Chen Low-Temperature Direct Wafer Bonding for III–V Compound Semiconductors to Nanometer-scale Grating Arrays
Bai-Ci Chen,Yu-Chang Wu,Jen-Hung Huang,Hao-Chung Kuo,Chien-Chung Lin,

In this paper, we designed the grating with different periodicities on silicon. Aluminum or silicon dioxide would be filled in the inter-space of grating. Besides, the surface reflectivity of different structures was measured and the theoretical calculation was performed. By Oxygen plasma-enhanced, we successfully present the results of a low-temperature process for direct bonding of InP epitaxial layers on a silicon wafer.

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