An integrated phase modulator is made by coating single-mode fibers with a radially poled vinylidene fluoride–trifluoroethylene copolymer. The performance of the fiber as an optical phase modulator was demonstrated over a wide frequency range of 20–50 MHz. A phase sensitivity of 2.1 × 10−5 rad/(V/m) per meter of fiber is measured in the low-frequency region and 3.5 × 10−6 rad/(V/m) per meter of fiber is measured in the high-frequency region. At frequencies higher than 1 MHz, the optical response is dominated by radial resonances of the fiber–jacket composite.
© 1988 Optical Society of America
Original Manuscript: April 22, 1988
Manuscript Accepted: July 8, 1988
Published: October 1, 1988
M. Imai, A. Odajima, S. Fujiwara, and Y. Ohtsuka, "Single-mode electric-field-sensitive fiber jacketed with vinylidene fluoride–trifluoroethylene copolymer," Opt. Lett. 13, 838-840 (1988)