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Proceedings Paper

High-performance GaAs/AlGaAs optical phase modulators for microwave/photonic integrated circuits
Author(s): Vincent M. Hietala; Stanley H. Kravitz; Marcelino G. Armendariz; G. Allen Vawter; Richard Franklin Carson; Ronald E. Leibenguth
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Paper Abstract

High-speed high-performance optical phase modulators are being developed for use in a coherent Photonic Integrated Circuit(PIC) technology. These phase modulators are the critical component of a PIC program at Sandia National Laboratories targeted for microwave/millimeter-wave signal processing and control including phased-array antenna control. The primary design goals for these modulators are amenability for integration into PICs, high figure of merit (FOM) and large bandwidths allowing for operation at MMW frequencies. Depletion-edge-translation optical phase modulators have been selected as the device technology of choice due to their high FOM. These modulators unfortunately suffer from a large terminal capacitance which greatly limits speed. To overcome this problem, a distributed electrode design based on the use of slow-wave coplanar strips has been developed. Device design and measurements are presented in this paper.

Paper Details

Date Published: 10 June 1994
PDF: 8 pages
Proc. SPIE 2155, Optoelectronic Signal Processing for Phased-Array Antennas IV, (10 June 1994); doi: 10.1117/12.177420
Show Author Affiliations
Vincent M. Hietala, Sandia National Labs. (United States)
Stanley H. Kravitz, Sandia National Labs. (United States)
Marcelino G. Armendariz, Sandia National Labs. (United States)
G. Allen Vawter, Sandia National Labs. (United States)
Richard Franklin Carson, Sandia National Labs. (United States)
Ronald E. Leibenguth, AT&T Bell Labs. (United States)

Published in SPIE Proceedings Vol. 2155:
Optoelectronic Signal Processing for Phased-Array Antennas IV
Brian M. Hendrickson, Editor(s)

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