Characterization of lithium niobate electro-optic modulators at cryogenic temperatures

Conference · Sat Jan 01 04:00:00 EST 1994

OSTI ID:10143181

Morse, J; McCammon, K; McConaghy, C; Masquelier, D; Garrett, H; Lowry, M

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.

• Research Organization: Lawrence Livermore National Lab., CA (United States)
• Sponsoring Organization: USDOE, Washington, DC (United States)
• DOE Contract Number: W-7405-ENG-48
• OSTI ID: 10143181
• Report Number(s): UCRL-JC--116078; CONF-940142--34; ON: DE94010059
• Country of Publication: United States
• Language: English

Related Subjects

36 MATERIALS SCIENCE
360606
42 ENGINEERING
426000
COMPONENTS
ELECTRON DEVICES AND CIRCUITS
CRYOGENICS
ELECTRO-OPTICAL EFFECTS
ELECTRONIC CIRCUITS
LITHIUM COMPOUNDS
MATERIALS
NIOBIUM COMPOUNDS
PHYSICAL PROPERTIES
WAVEGUIDES