Linearized optical directional-coupler modulator at 1.3 μm

Chanin Laliew; Sigurd Weidemann Løvseth; Xiaobo Zhang; Anand Gopinath

doi:10.1109/50.871701

Linearized optical directional-coupler modulator at 1.3 μm

Chanin Laliew, Sigurd Weidemann Løvseth, Xiaobo Zhang, Anand Gopinath

Electrical and Computer Engineering

Research output: Contribution to journal › Article › peer-review

15 Scopus citations

Abstract

We investigate electrooptic directional-coupler modulators operating at the wavelength of 1.3 μm, to have high linearity in their response function. The inverse Fourier transform technique was used to synthesize the spatially varying coupling function from a specified response function. The resulting coupling function was then used to determine the shape of the modulator structure. Modulators to have the response function of the form of a triangular (`linear') function have been designed, fabricated, and tested. The third-order intermodulation-limited spurious-free dynamic range, at -130-dBm normalized noise floor, of 96.2 dB/Hz^2/3 was obtained.

Original language	English (US)
Pages (from-to)	1244-1249
Number of pages	6
Journal	Journal of Lightwave Technology
Volume	18
Issue number	9
DOIs	https://doi.org/10.1109/50.871701
State	Published - Sep 2000

Bibliographical note

Funding Information:
Manuscript received July 9, 1999; revised May 2, 2000. This work was supported by DARPA and the U.S. Air Force. The authors are with the Department of Electrical and Computer engineering, University of Minnesota, Minneapolis, MN 55455 USA (e-mail: claliew@ece.umn.edu). Publisher Item Identifier S 0733-8724(00)08072-5.

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Linearized optical directional-coupler modulator at 1.3 μm

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