Three-section semiconductor optical amplifier for monitoring of optical gain

descriptionPublicationkeyboard_double_arrow_right Article 01 Nov 1992Publisher:Institute of Electrical and Electronics Engineers (IEEE)Journal:IEEE Photonics Technology Letters, volume 4, pages 1,258-1,260 (issn: 1041-1135, eissn: 1941-0174,

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Authors: M.A. Newkirk; U. Koren; B.I. Miller; M.D. Chien; M.G. Young; T.L. Koch; G. Raybon; +3 Authors

doi: 10.1109/68.166961

Three-section semiconductor optical amplifier for monitoring of optical gain

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Abstract

A 1.5- mu m multiquantum well amplifier divided into three sections with short contacts at the input and output facets is described. A simple derivation shows that the amplifier optical gain is proportional to the ratio of voltage changes at the facet contacts induced by the optical signal. Measurements of optical gain and contact voltage as a function of amplifier bias current are in good agreement with the theory. >

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