Multilayer optical fiber coupler

摘要: A multilayer optical fiber coupler for coupling radiation between an device and fiber, including a first layer that has socket formed by photolithographic masking etching to extend through said layer, second bonded the layer. The may comprise substantially single-crystal silicon. An is inserted into align precisely within socket. In one embodiment single mode focusing element on aligned with core of fiber. glass having index refraction approximately matches epoxy used affix fill gaps end face Embodiments are disclosed in which such as VCSEL or photodetector Alternative embodiments incorporated Advantages include reduced cost due batch fabrication techniques, passive alignment