Abstract

Optical splitters and couplers play an important role in the construction of various optical communication systems. Splitters, in particular, are now being used in optical signal distribution systems due to the progress of Er-doped fiber amplifiers. Wavelength insensitive couplers (WINCs) are used for an optical fiber transmission line testing system¹⁾. We have developed waveguide-type WINCs²⁾ and 2×N splitters³⁾ using silica-based planar lightwave circuit technology⁴⁾, which enable multiple passive devices to be integrated on a Si substrate. Combining the two functions of signal light splitting and test light coupling is attractive for passive optical network systems. This paper will describe the successful integration of a 2×16 splitter and wavelength insensitive test light couplers.

© 1993 Optical Society of America