Title :
Fiber-optic tapping via induced scattering
Author :
Shenk, D. Scott ; Cohen, Leonard G.
Author_Institution :
AT&T Bell Labs., Murray Hill, NJ, USA
fDate :
10/1/1989 12:00:00 AM
Abstract :
A noninvasive and potentially inexpensive method for fabricating a passive linear tapped optical waveguide bus is described. In the method, a small flame or a CO2 laser is used as a heat source to induce devitrification within the alumina-doped cores of multimode waveguide fibers having numerical apertures in the range of 0.25-0.29. The discrete crystal sites created by careful localized heating can be used to scatter controlled fractions of propagating light onto a detector
Keywords :
flames; laser beam applications; light scattering; optical fibres; optical workshop techniques; photodetectors; CO2 laser; alumina-doped cores; controlled fractional light scattering; controlled light scattering; detector; devitrification; discrete crystal sites; fibre optic tapping; heat source; induced scattering; localized heating; multimode waveguide fibers; noninvasive optical waveguide fabrication; numerical apertures; optical waveguide bus fabrication; passive linear tapped optical waveguide bus; photodetectors; propagating light; small flame; Apertures; Fiber lasers; Fires; Heating; Light scattering; Lighting control; Optical scattering; Optical waveguides; Temperature control; Waveguide lasers;
Journal_Title :
Lightwave Technology, Journal of
