Scaling the effective area of higher-order-mode erbium-doped fiber amplifiers.
Jeffrey W. Nicholson,John M. Fini,Anthony DeSantolo,Xiang Liu,K.S. Feder,Paul S. Westbrook,V. R. Supradeepa,Eric M. Monberg,F. V. Dimarcello,R. Ortiz,Clifford Headley,D. J. DiGiovanni +11 more
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TLDR
Scaling of the effective area of higher-order mode, Er-doped fiber amplifiers is demonstrated and Output beam profiles show clean higher order modes, and S(2) imaging measurements show low extraneous higher order mode content.Abstract:
We demonstrate scaling of the effective area of higher-order mode, Er-doped fiber amplifiers Two Er-doped higher-order mode fibers, one with 3800 μm2 Aeff in the LP0,11 mode, and one with 6000 μm2 effective area in the LP0,14 mode, are demonstrated Output beam profiles show clean higher order modes, and S2 imaging measurements show low extraneous higher order mode content CW and pulsed amplifier experiments are reported Nanosecond pulses are amplified to 05 mJ pulse energy with 05 MW peak powerread more
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Soliton self-mode conversion: revisiting Raman scattering of ultrashort pulses
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References
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Spatially and spectrally resolved imaging of modal content in large-mode-area fibers
TL;DR: A new measurement technique, capable of quantifying the number and type of modes propagating in large-mode-area fibers is both proposed and demonstrated, based on both spatially and spectrally resolving the image of the output of the fiber under test.
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High-power rod-type photonic crystal fiber laser.
Jens Limpert,N. Deguil-Robin,Inka Manek-Hönninger,François Salin,Fabian Röser,Andreas Liem,Thomas Schreiber,Stefan Nolte,Holger Zellmer,Andreas Tünnermann,Jes Broeng,A. Petersson,Christian Jakobsen +12 more
TL;DR: A novel ytterbium-doped fiber design that combines the advantages of rod and fiber gain media is reported that has significantly reduced nonlinearity, which allows for scalability in the performance of a high-peak-power fiber laser and amplifier system.
Journal ArticleDOI
Light propagation with ultralarge modal areas in optical fibers.
Siddharth Ramachandran,Jeffrey W. Nicholson,Samir Ghalmi,Man Yan,Patrick W. Wisk,Eric M. Monberg,F. V. Dimarcello +6 more
TL;DR: In this article, the authors demonstrate robust single-transverse-mode light propagation in higher-order modes of a fiber, with effective area Aeff ranging from 2100 to 3200 μm2.
Journal ArticleDOI
Secure Scan: A Design-for-Test Architecture for Crypto Chips
Bo Yang,Kaijie Wu,Ramesh Karri +2 more
TL;DR: The authors used a hardware implementation of the advanced encryption standard to show that the traditional scan DFT scheme can compromise the secret key, and showed that by using secure-scan DFT, neither thesecret key nor the testability of the AES implementation is compromised.
Journal ArticleDOI
Design and performance testing of a 2.29-GB/s Rijndael processor
TL;DR: This contribution describes the design and performance testing of an Advanced Encryption Standard (AES) compliant encryption chip that delivers 2.29 GB/s of encryption throughput at 56 mW of power consumption in a 0.18-/spl mu/m CMOS standard cell technology.