This paper reports on the operation of lithium niobate electro-optic waveguide modulators at temperatures down to 15{degrees}K. Commercial and laboratory fiber pigtailed devices have successfully been cooled without any increases in insertion loss from temperature induced stresses in device packaging. Three x-cut devices exhibited a linear increase in V{pi} voltage of 8%{plus_minus}1% when cooled from room temperature to {approximately} 20{degree}K. The broadband frequency response improved at lower temperature. A velocity-matched experimental modular has shown increased bandwidth when cooled to liquid nitrogen temperature.
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Lawrence Livermore National Lab., CA (United States)
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This paper reports on the operation of lithium niobate electro-optic waveguide modulators at temperatures down to 15{degrees}K. Commercial and laboratory fiber pigtailed devices have successfully been cooled without any increases in insertion loss from temperature induced stresses in device packaging. Three x-cut devices exhibited a linear increase in V{pi} voltage of 8%{plus_minus}1% when cooled from room temperature to {approximately} 20{degree}K. The broadband frequency response improved at lower temperature. A velocity-matched experimental modular has shown increased bandwidth when cooled to liquid nitrogen temperature.
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10 p.
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OSTI as DE94010059; Paper copy available at OSTI: phone, 865-576-8401, or email, reports@adonis.osti.gov
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Morse, J.; McCammon, K.; McConaghy, C.; Masquelier, D.; Garrett, H. & Lowry, M.Characterization of lithium niobate electro-optic modulators at cryogenic temperatures,
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January 1, 1994;
California.
(https://digital.library.unt.edu/ark:/67531/metadc1313185/:
accessed July 16, 2024),
University of North Texas Libraries, UNT Digital Library, https://digital.library.unt.edu;
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