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Erbium-doped mid-infrared fiber lasers
2016 Edition, June 1, 2016 - Optical Society (The) (OSA)

The performance of mid-infrared fiber lasers based on erbium has improved dramatically during the last few years. In this paper we will discuss the progress of a fiber laser that can operate on both the 3.5 μm transition and/or the more common...

Recent Advances in 3.5 μ m Erbium-Doped Mid-Infrared Fiber Lasers
2017 Edition, Volume 23, May 1, 2017 - IEEE - Institute of Electrical and Electronics Engineers, Inc.

The performance of mid-infrared Er3+-doped fiber lasers has dramatically improved in the last few years. In this paper, we present an overview of the progress in 3.5 μm fiber lasers based on the dual-wavelength pumping approach....

Numerical Modeling of $3.5~ {\mu }\text{m}$ Dual-Wavelength Pumped Erbium-Doped Mid-Infrared Fiber Lasers
2016 Edition, Volume 52, November 1, 2016 - IEEE - Institute of Electrical and Electronics Engineers, Inc.

The performance of mid-infrared Er3+-doped fiber lasers has dramatically improved in the last few years. In this paper, we present a numerical model that provides valuable insight into the dynamics of a dual-wavelength pumped fiber...

Recent advances in thermoelectrics
2011 Edition, December 1, 2011 - IEEE - Institute of Electrical and Electronics Engineers, Inc.

The thermoelectric field keeps going strong. Material figure of merit has been increased to values well above one, in nanostructured bulk thermoelectrics. To improve the materials' properties further, we need a clear understanding of charge and heat carrier transport. In parallel, we...

Recent Advances of TWTCAD
2007 Edition, April 1, 2007 - IEEE - Institute of Electrical and Electronics Engineers, Inc.

Recent advances of TWTCAD Integrated Framework, a 2D modeling and simulation code suite for traveling wave tube, will be presented. The use of the suite is more convenience, and the simulation result is more accurate. All modules of TWTCAD are improved. TWTCAD is applying and...

Recent advances in avalanche photodiodes
2015 Edition, March 1, 2015 - Optical Society (The) (OSA)

This paper will review recent advances in linear- and Geiger mode avalanche photodiodes (APDs). The focus for linear-mode devices will be materials and structural modifications to the conventional InP/InGaAs APD that have enabled reduced excess noise and enhanced gain-bandwidth...

Recent Advances in Computational Epidemiology
2013 Edition, Volume 28, July 1, 2013 - IEEE - Institute of Electrical and Electronics Engineers, Inc.

Public health epidemiology aims to understand the spatiotemporal spread of diseases and to develop methods to control such spread. Computational epidemiology has become increasingly multidisciplinary and has led to novel computational methods for understanding and controlling spatiotemporal disease...

Recent advances in VCSEL photonics
2011 Edition, July 1, 2011 - IEEE - Institute of Electrical and Electronics Engineers, Inc.

We have seen a lot of unique features for VCSELs, such as low power consumption, wafer-level testing, small packaging capability and so on. Recent advances in VCSEL photonics for optical interconnects will be reviewed.

Recent Advances in Radar
1974 Edition, September 1, 1974 - IEEE - Institute of Electrical and Electronics Engineers, Inc.

The continuing evolution of new components is resulting in corresponding advances in radar systems. The paper commences with a brief review of some of the basic radar parameters which have been influenced in the recent past by improvements in component...

Recent advances on metasurfaces
2015 Edition, Volume 1, August 1, 2015 - IEEE - Institute of Electrical and Electronics Engineers, Inc.

We briefly summarize our recent efforts in employing meta-surfaces to control electromagnetic waves, including realizing high-efficiency photonic spin-hall effect and surface-plasmon couplers, and controlling phases with graphene-based meta-surfaces.

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