Published January 15, 1998
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All-fiber zero-insertion-loss add-drop filter for wavelength-division multiplexing
Abstract
We developed and fabricated an all-fiber add–drop filter by recording a Bragg grating in the waist of an asymmetric mode converter–coupler formed by adiabatic tapering and fusing of two locally dissimilar, single-mode optical fibers. The insertion loss of the device was ~0.1 dB. A narrow spectral bandwidth (<1 nm) and a large add–drop efficiency (>90%) were also demonstrated. In addition, the filter was polarization independent.
Additional Information
© 1998 Optical Society of America Received June 18, 1997 This research was supported, in part, by the U.S. Army Missile Command under contracts DAAH01-96-C-R152 and DAAH01-97-C-R043 with funding from the Defense Advanced Research Projects Agency and by the Naval Surface Warfare Center under contract N00178-96-C-3058 with funding from the Ballistic Missile Defense Organization.Files
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