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Nanoscale Res Lett. 2014 Jan 13;9(1):22. doi: 10.1186/1556-276X-9-22.

Optical gain in 1.3-μm electrically driven dilute nitride VCSOAs.

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1
School of Computer Science and Electronic Engineering, University of Essex, Wivenhoe Park CO4 3SQ, UK. sblisesivdin@gmail.com.

Abstract

We report the observation of room-temperature optical gain at 1.3 μm in electrically driven dilute nitride vertical cavity semiconductor optical amplifiers. The gain is calculated with respect to injected power for samples with and without a confinement aperture. At lower injected powers, a gain of almost 10 dB is observed in both samples. At injection powers over 5 nW, the gain is observed to decrease. For nearly all investigated power levels, the sample with confinement aperture gives slightly higher gain.

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