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

23 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 → …

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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

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

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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