title: All-fiber wavelength filter from successive biconical tapers.
abstract: We demonstrate the cascading of biconical fiber tapers as a simple method for converting monomode optical fibers into wavelength filters with a prescribed response. As an example, we made a narrow-bandpass filter consisting of four biconical tapers of different elongations made in succession on a single fiber. The transmission peak of the spectral response of the filter is centered on an arbitrary wavelength within the monomode domain of the fiber. The half-power width is approximately 6 nm.
authors.forename: S
authors.initials: S
authors.lastname: Lacroix
authors.forename: F
authors.initials: F
authors.lastname: Gonthier
authors.forename: J
authors.initials: J
authors.lastname: Bures