Switched time delay elements based on AlGaAs/GaAs optical waveguide technology at 1.32µm for optically controlled phased array antennas

C. T. Sullivan; S. D. Mukherjee; M. K. Hibbs-Brenner; A. Gopinath; E. Kalweit; T. Marta; W. Goldberg; R. Walterson

doi:10.1117/12.138393

Switched time delay elements based on AlGaAs/GaAs optical waveguide technology at 1.32µm for optically controlled phased array antennas

C. T. Sullivan, S. D. Mukherjee, M. K. Hibbs-Brenner, A. Gopinath, E. Kalweit, T. Marta, W. Goldberg, R. Walterson

Electrical and Computer Engineering

Research output: Contribution to journal › Conference article › peer-review

24 Scopus citations

Abstract

Integrated optical time-shift networks consisting of cascaded pairs of 2×2 linear electro-optic (EO) switches and optical delay lines in GaAs waveguides at 1.32 µm are investigated for true-time optical beamforming in phased array antennas. We report new state-of-the-art results in curved waveguide and corner bend insertion loss, and preliminary results from 2-bit time delay generators (TDGs) constructed in the form of GaAs-based photonic integrated circuits (PICs) utilizing these components. To our knowledge, these are the largest GaAs PICs built to date. These results represent significant progress in our longer-term goal of demonstrating a 7-bit TDG with a loss matching monolithic microwave integrated circuit (MMIC) delay line techniques, while providing very wide bandwidth unmatched by MMIC technology.

Original language	English (US)
Pages (from-to)	264-271
Number of pages	8
Journal	Proceedings of SPIE - The International Society for Optical Engineering
Volume	1703
DOIs	https://doi.org/10.1117/12.138393
State	Published - Dec 2 1992
Event	Optical Technology for Microwave Applications VI and Optoelectronic Signal Processing for Phased-Array Antennas III 1992 - Orlando, United States Duration: Apr 20 1992 → …

Bibliographical note

Funding Information:
Joint support by Rome Laboratory of the Air Force Systems Command, Defense Advanced Research Projects Agency, and Honeywell under contract number F30602-90-C-0062 is gratefully acknowledged. The authors thank Brian Hendrickson and David Cordeiro of Rome Laboratory, and Nisa Khan, Mark Bendett, Vladimir Sokolov, Julian Bristow, and Anis Husain of Honeywell for valuable discussions during the course of this work.

Publisher Copyright:
© 1992 SPIE. All rights reserved.

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Sullivan, C. T., Mukherjee, S. D., Hibbs-Brenner, M. K., Gopinath, A., Kalweit, E., Marta, T., Goldberg, W., & Walterson, R. (1992). Switched time delay elements based on AlGaAs/GaAs optical waveguide technology at 1.32µm for optically controlled phased array antennas. Proceedings of SPIE - The International Society for Optical Engineering, 1703, 264-271. https://doi.org/10.1117/12.138393

Switched time delay elements based on AlGaAs/GaAs optical waveguide technology at 1.32µm for optically controlled phased array antennas. / Sullivan, C. T.; Mukherjee, S. D.; Hibbs-Brenner, M. K.; Gopinath, A.; Kalweit, E.; Marta, T.; Goldberg, W.; Walterson, R.

In: Proceedings of SPIE - The International Society for Optical Engineering, Vol. 1703, 02.12.1992, p. 264-271.

Research output: Contribution to journal › Conference article › peer-review

Sullivan, CT, Mukherjee, SD, Hibbs-Brenner, MK, Gopinath, A, Kalweit, E, Marta, T, Goldberg, W & Walterson, R 1992, 'Switched time delay elements based on AlGaAs/GaAs optical waveguide technology at 1.32µm for optically controlled phased array antennas', Proceedings of SPIE - The International Society for Optical Engineering, vol. 1703, pp. 264-271. https://doi.org/10.1117/12.138393

Sullivan, C. T. ; Mukherjee, S. D. ; Hibbs-Brenner, M. K. ; Gopinath, A. ; Kalweit, E. ; Marta, T. ; Goldberg, W. ; Walterson, R. / Switched time delay elements based on AlGaAs/GaAs optical waveguide technology at 1.32µm for optically controlled phased array antennas. In: Proceedings of SPIE - The International Society for Optical Engineering. 1992 ; Vol. 1703. pp. 264-271.

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abstract = "Integrated optical time-shift networks consisting of cascaded pairs of 2×2 linear electro-optic (EO) switches and optical delay lines in GaAs waveguides at 1.32 µm are investigated for true-time optical beamforming in phased array antennas. We report new state-of-the-art results in curved waveguide and corner bend insertion loss, and preliminary results from 2-bit time delay generators (TDGs) constructed in the form of GaAs-based photonic integrated circuits (PICs) utilizing these components. To our knowledge, these are the largest GaAs PICs built to date. These results represent significant progress in our longer-term goal of demonstrating a 7-bit TDG with a loss matching monolithic microwave integrated circuit (MMIC) delay line techniques, while providing very wide bandwidth unmatched by MMIC technology.",

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Switched time delay elements based on AlGaAs/GaAs optical waveguide technology at 1.32µm for optically controlled phased array antennas

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