High-performance GaAs/AlGaAs optical phase modulators for microwave/photonic integrated circuits

Vincent M. Hietala; Stanley H. Kravitz; Marcelino G. Armendariz; G. Allen Vawter; Richard Franklin Carson; Ronald E. Leibenguth

doi:10.1117/12.177420

10 June 1994 High-performance GaAs/AlGaAs optical phase modulators for microwave/photonic integrated circuits

Vincent M. Hietala, Stanley H. Kravitz, Marcelino G. Armendariz, G. Allen Vawter, Richard Franklin Carson, Ronald E. Leibenguth

Author Affiliations +

Proceedings Volume 2155, Optoelectronic Signal Processing for Phased-Array Antennas IV; (1994) https://doi.org/10.1117/12.177420
Event: OE/LASE '94, 1994, Los Angeles, CA, United States

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.

Citation Download Citation

Vincent M. Hietala, Stanley H. Kravitz, Marcelino G. Armendariz, G. Allen Vawter, Richard Franklin Carson, and Ronald E. Leibenguth "High-performance GaAs/AlGaAs optical phase modulators for microwave/photonic integrated circuits", Proc. SPIE 2155, Optoelectronic Signal Processing for Phased-Array Antennas IV, (10 June 1994); https://doi.org/10.1117/12.177420

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