Side-chain electro-optic polymer modulator with wide thermal stability ranging from −46°Cto95°C for fiber-optic gyroscope applications

Abstract

Electro-optic ͑EO͒ polymer modulators with a wide range of thermal stability from −46°C to 95°C for fiber-optic gyroscope applications are reported. The synthesized EO side-chain polymer used has a glass transient temperature ͑T g ͒ of 200°C and a large EO coefficient of 25.2 pm/ V in a real device measurement. Mach-Zehnder ͑MZ͒ intensity and optical phase modulators are implemented based on this high-T g side-chain EO polymer, exhibiting ϳ3.75 V half-wave voltage with 1.5 cm interaction length and 2.3 cm total length at 1.55 m wavelength. The optical fiber-to-lens insertion loss is ϳ7.5 dB in the MZ interferometers and ϳ6 dB in the straight waveguides. We examine the long-term thermal stability of these devices and demonstrate their ability to meet the strict requirements of various EO device applications, particularly fiber-optic gyroscopes.

Design and fabrication of DR1/PC-based electro-optic switch

“…[13][14][15][16][17] Fast decay has been reported in DR1/PMMA guest-host systems. The DR1/PC material has good stability compared with DR1/PMMA, because it has higher T g than that of DR1/PMMA.…”

Copper-catalyzed Huisgen cycloaddition reactions used to incorporate NLO chromophores into high Tg Side-Chain Polymers for Electro-Optics

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Development of polyurethanes with azo‐type chromophores for second‐order nonlinear optical applications

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