Abstract

We describe an in-line, single-mode fiber attenuator using a combination of polarization-preserving and single-polarization fibers. The attenuation is adjustable over a 30-dB range by varying the birefringence of a short length of fiber with tension. The insertion loss is 1.3 dB. The tension birefringence arises from the difference in Poisson’s ratio between the noncircular stress cladding and the silica substrate glass.

© 1983 Optical Society of America

Temperature dependence of stress birefringence in an elliptically clad fiber

S. C. Rashleigh and M. J. Marrone
Opt. Lett. 8(2) 127-129 (1983)

High birefringence in tension-coiled single-mode fibers

S. C. Rashleigh and R. Ulrich
Opt. Lett. 5(8) 354-356 (1980)

Low-loss single polarization fibers

T. Katsuyama, H. Matsumura, and T. Suganuma
Appl. Opt. 22(11) 1741-1747 (1983)

Fabrication of single-mode fiber-type polarizer

T. Hosaka, K. Okamoto, and T. Edahiro
Opt. Lett. 8(2) 124-126 (1983)

Fiber circular polarizer

T. Hosaka, K. Okamoto, and T. Edahiro
Appl. Opt. 22(23) 3850-3858 (1983)