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IEEE Photonics Conference 2012

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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 />

Page 71

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