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IEEE Photonics Conference 2012

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TECHNICAL PROGRAM MONDAY 24 SEPTEMBER <strong>2012</strong><br />

GRAND BALLROOM F GRAND BALLROOM G HARBOUR ROOM A GRAND BALLROOM A<br />

efficiencies of 1.5, 2.0, and 3.8 pJ/b are achieved<br />

at 22.5, 25, and 28.5 Gb/s, respectively.<br />

MM3 11:15 AM - 11:30 AM<br />

All-Optical Modulation Format<br />

Conversion from 4-channels NRZ-OOK to<br />

RZ-16QAM using SOA-MZI Wavelength<br />

Converters, D. Hisano, A. Maruta and<br />

K.-I. Kitayama, Osaka University, Suita, Osaka,<br />

Japan<br />

We propose an all-optical modulation format<br />

converter in which 4-channels NRZ-OOK signals<br />

can be converted to RZ-16QAM. The converter<br />

consists of two SOA-MZI based OOK to 4ASK<br />

converters and a single SOA for offset compensation.<br />

MN3 11:15 AM - 11:30 AM<br />

Ultra-Compact Intra-Cavity Contacts for<br />

Multi-Terminal VCSEL Power<br />

Enhancement, C.-H. Lin, B. Thibeault,<br />

Y. Zheng, J. S. Parker, M. J. W. Rodwell and<br />

L. A. Coldren, University of California - Santa<br />

Barbara, Santa Barbara, CA, USA<br />

We demonstrate ultra-compact intra-cavity<br />

contacts fabricated with an embedded Al 2O 3 etchstop,<br />

which effectively shorten the cavity length<br />

and enhance the output power of a multi-terminal<br />

VCSEL.<br />

MO3 11:15 AM - 11:45 AM (Invited)<br />

Light Trapping and Solar Energy<br />

Harvesting with 3D Photonic Crystals,<br />

S. John, University of Toronto, Toronto, ON,<br />

Canada<br />

We describe designs of 3D photonic crystal<br />

silicon-based solar cells using architectures<br />

consisting of less than 1 micron of silicon,<br />

absorbing roughly 75% of all sunlight, with<br />

power efficiencies in the 15-20% range.<br />

MP3 11:15 AM - 11:30 AM<br />

P-Type D-Doping of Highly-Strained<br />

VCSELs for 25 Gbps Operation, A. V. Barve<br />

and Y. Zheng, University of California - Santa<br />

Barbara, Santa Barbara, CA, USA<br />

We present the utilization of d-doping to mitigate<br />

the rise in nonlinear gain compression in highlystrained<br />

InGaAs VCSELs and compare it with<br />

unstrained and undoped active region designs.<br />

High-speed 25 Gbps operation is also<br />

demonstrated.<br />

MM4 11:30 AM - 11:45 AM<br />

All-Optical 2R Regeneration of a 160-<br />

Gbit/s RZ- OOK Serial Data Signal Using<br />

a FOPA, J. Wang, H. Ji, H. Hu,<br />

H. C. H. Mulvad, M. Galili, E. Palushani,<br />

P. Jeppesen, Technical University of Denmark,<br />

Lyngby, Denmark, J. Yu, Tianjin University,<br />

Tianjin, China and L. K. Oxenløwe, Technical<br />

University of Denmark, Lyngby, Denmark<br />

All-optical 2R regeneration of a 160-Gbit/s RZ-<br />

OOK signal is demonstrated in a fiber optical<br />

parametric amplifier using a highly nonlinear<br />

fiber with the data as pump. Bit error rate bathtub<br />

curves validate the regeneration performance.<br />

MN4 11:30 AM - 11:45 AM<br />

Measurement of Optical Loss in Oxide-<br />

Confined VCSELs, S. T. M. Fryslie,<br />

D. F. Siriani and K. D. Choquette, University of<br />

Illinois at Urbana-Champaign, Urbana, IL, USA<br />

Cold-cavity spectral characteristics are used to<br />

extract the size dependent optical loss for small<br />

diameter oxide-confined VCSELs. For aperture<br />

diameters < 2 µm, the oxide scattering loss can<br />

be as large as 10 cm -1 .<br />

MO4 11:45 AM - 12:00 PM<br />

Low-Cost Approach for Broadband<br />

Enhancement of Ultraviolet to Visible<br />

Light Downconversion in Fluorescent<br />

Media, R. Mupparapu, K. Vynck, I. Malfanti,<br />

University of Florence, Sesto Fiorentino<br />

(Florence), Italy, S. Vignolini, University of<br />

Cambridge, Cambridge UK, M. Burresi,<br />

University of Florence, Sesto Fiorentino<br />

(Florence), Italy, P. Scudo, R. Fusco, ENI<br />

Donegani Institute, Novara, Italy and<br />

D. S. Wiersma, University of Florence, Sesto<br />

Fiorentino (Florence), Italy<br />

The addition of a tiny amount of Aluminum<br />

nanoparticles in dye solutions is shown to yield<br />

a significant enhancement of the down conversion<br />

of ultraviolet light while maintaining a high<br />

transparency at visible wavelengths.<br />

MP4 11:30 AM - 11:45 AM<br />

Low Loss and Flatband Si-wire Optical<br />

MUX/DeMUX based on Microring<br />

Resonator assisted Delayed Mach-<br />

Zehnder Interferometers, S.-H. Jeong,<br />

S. Tanaka, T. Akiyama, S. Sekiguchi, Y. Tanaka<br />

and K. Morito, Fujitsu Laboratories Ltd., Atsugi,<br />

Kanagawa, Japan<br />

Novel Si-wire optical MUX/DeMUX employing<br />

microring resonator assisted delayed Mach-<br />

Zehnder interferometers is experimentally<br />

demonstrated. The fabricated device shows<br />

1×4Ch demultiplexing with low excess loss<br />

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