Single-mode-fiber birefringent filters.
It is proposed to utilize optical birefringence in single-mode fibers for construction of wavelength-dependent filters. The birefringence may be natural (a consequence of the drawing process) or induced through external stresses. In the latter case, simple variation of these stresses may be used to tune the filter transfer function.
Johnson
M
M
IBM Thomas 1. Watson Research Center, Yorktown Heights, New York 10598, USA.