A tapered optical fiber component is provided that has an optical fiber with a cladded region. An optical core passes through the cladded region. The cladded region has a tapered extended first region drawn down in diameter to form an effective area region that has a predetermined effective area. The...http://www.google.de/patents/US5479546?utm_source=gb-gplus-sharePatent US5479546 - Optimized non-linear effect tapered optical fiber interferometer/switch device
