Abstract
Add-drop filters are critical components for wavelength-division-multiplexed optical communications systems. It is of interest to develop narrow bandwidth devices with good isolation and crosstalk performance and minimal insertion loss. A Mach-Zehnder interferometer with UV-induced gratings is an attractive add-drop technology.1 Adjacent channel isolation greater than 20 dB at 100 GHz and transmitted isolation less than -20 dB has been demonstrated in a fiber-based device.2 However, fiber interferometers suffer from sensitivity to environmental changes due to polarization effects and also require UV trimming to account for arm length differences.
© 1996 Optical Society of America
PDF ArticleMore Like This
J.-M. Jouanno, D. Zauner, M. Svalgaard, and M. Kristensen
BTuA.3 Bragg Gratings, Photosensitivity, and Poling in Glass Fibers and Waveguides (BGPP) 1997
C.K. Madsen, J.J. DeMarco, C.H. Henry, E.J. Laskowski, R.E. Scotti, and T.A. Strasser
BTuA.4 Bragg Gratings, Photosensitivity, and Poling in Glass Fibers and Waveguides (BGPP) 1997
Glenn E. Kohnke, Turan Erdogan, and Thomas A. Strasser
ThQ6 Optical Fiber Communication Conference (OFC) 1996