Side-chain electro-optic polymer modulator with wide thermal stability ranging from −46°Cto95°C for fiber-optic gyroscope applications
- 5 August 2005
- journal article
- Published by AIP Publishing in Applied Physics Letters
- Vol. 87 (6)
- https://doi.org/10.1063/1.2009807
Abstract
[[abstract]]Electro-optic (EO) 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 (Tg) of 200 °C and a large EO coefficient of 25.2 pm/V in a real device measurement. Mach–Zehnder (MZ) intensity and optical phase modulators are implemented based on this high-Tg side-chain EO polymer, exhibiting ~3.75 V half-wave voltage with 1.5 cm interaction length and 2.3 cm total length at 1.55 µm wavelength. The optical fiber-to-lens insertion loss is ~7.5 dB in the MZ interferometers and ~6 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. ©2005 American Institute of Physics[[fileno]]2030186010007[[department]]電機Keywords
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