A fiber optic chip having one or more fiber-retaining channels and a respective number of lenslets disposed in registry with the channels is provided. The fiber optic chip includes a substrate having a first surface and an etch stop layer disposed proximate the first surface of the substrate. A fiber...http://www.google.de/patents/US6737223?utm_source=gb-gplus-sharePatent US6737223 - Fiber optic chip with lenslet array and method of fabrication
