Fused fiber WDMs are being utilized to increase the capacity of fiber-optic systems. The crosstalk of these devices is >16 dB for two discrete wavelengths but degrades to ~10 dB over the wavelength range required by some systems. Thus, to have a WDM system with >30 dB of crosstalk it is necessary to provide at least 20 dB of additional filtration. We report an inline blocking filter (filter with pigtails) that consists of single-mode fibers fused to graded-index fiber lenses, a dielectric interference filter, and an AT&T rotary splice.1

© 1988 Optical Society of America

PDF Article


You do not have subscription access to this journal. Citation lists with outbound citation links are available to subscribers only. You may subscribe either as an OSA member, or as an authorized user of your institution.

Contact your librarian or system administrator
Login to access OSA Member Subscription