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Tumors of the central nervous system (CNS) are the leading cause of cancer-related mortality in children. Brain tumors account for approximately 25% of pediatric cancers. They rank second behind leukemia as the most common pediatric cancer diagnosed in the United States each year, and they are the most common form of solid tumor in children. Improvement in outcome for pediatric brain tumors has lagged...
Semiconductor ring lasers (SRL) have received growing interest because of their potential as compact and coherent light source. Although intensive effort has been invested into the bistability of SRL under continuous wave operation, very little research has been conducted on the direct modulation of SRL[1]. We report the direct modulation of SRL at bit rates up to 1.5Gb/s. The experimental results...
We experimentally demonstrate all-optical packet compression for a RZ payload up to 40 Gb/s and a label at 155 Mb/s, based on a recirculating buffer with one single optical crosspoint switch. The packet can be flexibly switched, dropped, time slot interchanged up to 9 time-slots and compressed up to 4 packets in one time slot. Back to back BER performance of the 4 times compressed packet is measured...
We experimentally demonstrate transmission over 100km SMF and transparent wavelength conversion based on a semiconductor optical amplifier for a 43 Gb/s return-to-zero frequency shift keying signal resulting in 4 dB over-all penalty.
We demonstrate the design and experimental implementation of an electro-optic control system that is used to detect the arrival of packets at the optical switch input, process the headers of the packets, and control switching according to the header content for both fixed and variable length packets. We also demonstrate the flexibility of the electro-optic crosspoint switch for implementation in a...
We experimentally show up to 10 ??s ms of optical buffering and wavelength conversion over 18nm, sustaining only 3.5dB of power penalty, in an optical node at 10 Gbit/s. The node is hence capable of time-space-and-wavelength domain contention resolution.
We experimentally demonstrate label encoding/erasure and transmission for an orthogonally labeled signal using a 40 Gbit/s DPSK payload and an IM label. The influence of the modulation depth and the label erasure are discussed.
We experimentally demonstrate all-optical broadcasting through simultaneous 8 /spl times/ 40 Gb/s wavelength conversion in the RZ format based on cross absorption modulation in an electroabsorption modulator. The original intensity-modulated information is successfully duplicated onto eight wavelengths that comply with the ITU-T proposal. The advantages of the proposed wavelength conversion scheme...
It is demonstrated experimentally that the frequency chirp of a data modulated signal can be reduced and the modulation bandwidth increased through wavelength conversion in an electroabsorption modulator.
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