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TECHNICAL PROGRAM THURSDAY 27 SEPTEMBER<br />
GRAND BALLROOM F GRAND BALLROOM G HARBOUR ROOM A GRAND BALLROOM A<br />
resistance.<br />
quartz/hafnium dioxide system.<br />
ThM2 11:00 AM - 11:15 AM<br />
All-Fiber Wavelength Tunable Tm-Doped<br />
Fiber Laser Using FBG Tuning Methods,<br />
C. H. Tse, Nanyang Technological University,<br />
Singapore<br />
In this paper, we demonstrate experimentally a<br />
wavelength-tunable, CW Tm-doped all-fiber<br />
laser. The wavelength tunability is enabled by<br />
strain and temperature change of the FBG in the<br />
cavity. Tuning range of 1.7nm, 12nm are demonstrated.<br />
ThN2 11:00 AM - 11:15 AM<br />
Hybrid Photonic Crystal Fiber Selectively<br />
Infiltrated with Liquid Crystal, K. Milenko,<br />
Nanyang Technological University, Singapore,<br />
D. J. J. Hu, A*STAR Institute for Infocomm<br />
Research, Singapore, P. Shum, Nanyang<br />
Technological University, Singapore, J. L. Lim,<br />
Y. Wang, A*STAR Institute for Infocomm<br />
Research, Singapore and T. R. Wolinski, Warsaw<br />
University of Technology, Warszawa, Poland<br />
We present hybrid propagation in a photonic<br />
liquid crystal fiber (PLCF) fabricated by selective<br />
infiltration of photonic crystal fiber (PCF) air<br />
channels with a liquid crystal (LC). Temperature<br />
tuning of photonic bandgaps is demonstrated.<br />
ThO3 11:15 AM - 11:30 AM<br />
A Hybrid Silicon Colliding Pulse Modelocked<br />
Laser with Integrated Passive<br />
Waveguide Section, M. L. Davenport,<br />
University of California - Santa Barbara, Goleta,<br />
CA, USA<br />
A hybrid silicon colliding pulse mode-locked<br />
laser with an integrated passive waveguide<br />
section is shown. The laser operates at 18GHz<br />
with a 20dB RF bandwidth of 1.6MHz.<br />
ThP3 11:00 AM - 11:15 AM<br />
Optimizing Motheye Antireflective<br />
Structures for Maximum Coupling<br />
Through As2S3 Optical Fibers,<br />
R. J. Weiblen, University of Maryland Baltimore<br />
County, Baltimore, MD, USA, C. Florea, Sotera<br />
Defense Solutions, McLean, VA, USA,<br />
A. Docherty, C. R. Menyuk, University of<br />
Maryland Baltimore County, Baltimore, MD,<br />
USA, B. Shaw, US Naval Research Laboratory,<br />
Washington, DC, USA, J. S. Sanghera, Sotera<br />
Defense Solutions, Crofton, MD, USA, L. Busse<br />
and I. D. Aggarwal, US Naval Research<br />
Laboratory, Washington, DC, USA<br />
We study theoretically the transmissivity of As 2S 3<br />
chalcogenide optical fibers with motheye antireflective<br />
nanostructures. We show that it is<br />
possible to design structures giving greater than<br />
99% transmission from 2–5 µm.<br />
ThM3 11:15 AM - 11:30 AM<br />
Orthogonally Coded Frequency-Tagging<br />
for Active Coherent Beam Combination,<br />
A. Azarian, P. Bourdon, L. Lombard, ONERA,<br />
Palaiseau, France, Y. Jaouen, Telecom ParisTech,<br />
Paris, France and O. Vasseur, ONERA, Palaiseau,<br />
France<br />
We present active phase-locking of fiber amplifiers<br />
using Walsh coded modulations. Numerical<br />
simulations demonstrate the potential of this<br />
technique to tag multiple fibers with a single<br />
frequency and enhance power scaling capability.<br />
ThN3 11:15 AM - 11:30 AM<br />
A Directional Coupler based on Nematic<br />
Liquid Crystal Filled Photonic Crystal<br />
Fiber, D. J. J. Hu, J. L. Lim, A*STAR Institute<br />
for Infocomm Research, Singapore, Y. Cui,<br />
Nanyang Technological University, Singapore,<br />
K. Milenko, Y. Wang, A*STAR Institute for<br />
Infocomm Research, Singapore and<br />
T. R. Wolinski, Warsaw University of Technology,<br />
Warszawa, Poland<br />
A highly temperature sensitive directional coupler<br />
is demonstrated experimentally by selectively<br />
filling nematic liquid crystal into a single void of<br />
the photonic crystal fiber. The temperature<br />
response of the device exhibits good linearity.<br />
ThO4 11:30 AM - 11:45 AM<br />
GaInAsP/Si Hybrid Fabry-Perot Laser<br />
using N 2 Plasma Activated Low<br />
Temperature Bonding, Y. Hayashi, R. Osabe,<br />
K. Fukuda, Y. Atsumi, J. Kang, N. Nishiyama and<br />
S. Arai, Tokyo Institute of Technology, Meguroku,<br />
Tokyo, Japan<br />
A GaInAsP/Si hybrid Fabry-Perot laser, fabricated<br />
by low temperature N 2 plasma surface activated<br />
bonding on a Si substrate, was demonstrated.<br />
Lasing operation at room temperature was realized<br />
with a threshold current density of 0.85<br />
kA/cm 2.<br />
ThP4 11:15 AM - 11:30 AM<br />
2.78 µm Fluoride Glass Fiber Laser<br />
Using Guided Mode Resonance Filter as<br />
External Cavity Mirror, Y. Li, R. Woodward,<br />
A. Pung, M. Poutous, I. R. Srimathi, E. Johnson,<br />
Clemson University, Clemson, SC, USA and<br />
R. K. Shori, US Naval Air Warfare Center, China<br />
Lake, CA, USA<br />
A diode pumped CW Erbium (Er)-doped Zr-Ba-<br />
La-Al-Na (ZBLAN) fluoride glass fiber laser<br />
operating at 2.78 µm was demonstrated using a<br />
guided mode resonance filter (GMRF) as an<br />
external cavity mirror.<br />
ThM4 11:30 AM - 11:45 AM<br />
Passive Mode-Locking of Fiber Laser<br />
Based on Diamond Thin Film, T. Hu,<br />
H. Wan, W. Jiang and X. Sun, Southeast<br />
University, Nanjing, Jiangsu, China<br />
We demonstrate a novel saturable absorber<br />
based on diamond thin film directly synthesized<br />
on quartz substrates by microwave plasma<br />
chemical vapor deposition method. The function<br />
of mode-locking for the fiber laser is achieved.<br />
ThN4 11:30 AM - 11:45 AM<br />
Liquid Core Photonic Crystal Fiber with<br />
the Enhanced Light Coupling Efficiency,<br />
J. Park, J. Kim, B. Paulson and K. Oh, Yonsei<br />
University, Seoul, Korea<br />
We proposed a novel method to fabricate liquidcore<br />
photonic crystal fibers by utilizing a<br />
ring-core hollow optical fiber, which could overcome<br />
the previous structural limitation, enhance<br />
the light coupling efficiency, and prevent the<br />
liquid evaporation.<br />
ThO5 11:45 AM - 12:15 PM (Invited)<br />
III-V Quantum Dot Lasers on Si<br />
Substrates by Wafer Bonding, K. Tanabe<br />
and Y. Arakawa, University of Tokyo, Tokyo,<br />
Japan<br />
We present 1.3 µm InAs/GaAs quantum dot<br />
Fabry-Perot and photonic crystal nanocavity<br />
lasers on Si substrates fabricated by wafer<br />
bonding, with thresholds of 205 A/cm 2 and 2<br />
µW, respectively, the lowest of lasers on silicon.<br />
ThP5 11:30 AM - 11:45 AM<br />
Resolving Split Resonant Modes in<br />
Microrings, Y. M. Kang, A. Arbabi and<br />
L. L. Goddard, University of Illinois at Urbana-<br />
Champaign, Urbana, IL, USA<br />
A computational method for spectrally resolving<br />
closely spaced resonant modes of a high Q<br />
microring resonator is developed based on the<br />
modal expansion method. It can be used to<br />
obtain split degenerate mode complex eigenfrequencies.<br />
ThM5 11:45 AM - 12:00 PM<br />
Long Term Performance of NASA’s High<br />
Output Maximum Efficiency Resonator<br />
(HOMER) Laser for Earth and Planetary<br />
Altimetry, D. B. Coyle, NASA, Greenbelt, MD,<br />
USA, R. B. Kay, D. Poulios, American University,<br />
Washington, DC, USA, P. R. Stysley, NASA,<br />
Greenbelt, MD, USA, G. Clarke, American<br />
University, Washington, DC, USA, K. C. Cory<br />
and R. M. Frederickson, Sigma Space Corp.,<br />
Lanham, MD, USA<br />
We report the results of a 2 year life test of the<br />
HOMER laser flight- quality prototype, producing<br />
over 15 billion, 15 mJ, 10 ns Q-Switched laser<br />
ThN5 11:45 AM - 12:00 PM<br />
Thermal-Induced Refractive Index<br />
Change Effects on Distributed Modal<br />
Filtering Properties of Rod-Type Photonic<br />
Crystal Fibers, E. Coscelli, F. Poli, University<br />
of Parma, Parma, Italy, M. M. Joergensen,<br />
M. Laurila, J. Lægsgaard, Technical University of<br />
Denmark, Lyngby, Denmark, T. T. Alkeskjold,<br />
L. Leick, J. Broeng, NKT <strong>Photonics</strong> A/S,<br />
Birkerød, Denmark, A. Cucinotta and S. Selleri,<br />
University of Parma, Parma, Italy<br />
The effects of thermally-induced refractive index<br />
change on distributed modal filtering rod-type<br />
photonic crystal fibers are numerically investi-<br />
ThP6 11:45 AM - 12:00 PM<br />
High Spatial Resolution Subsurface<br />
Microscopy using Radially Polarized<br />
Beam, A. Yurt, M. D. W. Grogan, Y. Lu,<br />
E. Ramsay, M. Unlu, S. Ramachandran and<br />
B. B. Goldberg, Boston University, Boston, MA,<br />
USA<br />
We experimentally study spot size reduction by<br />
using radially polarized beam for subsurface<br />
silicon integrated circuit microscopy. Metallic<br />
lines fabricated on a silicon substrate with<br />
linewidth/spacing = ~130nm/70nm were<br />
resolved through the substrate at 0=1310nm.<br />
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