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Built In Alignment Circuit for Fiber Optic Silicon Optical Bench

IP.com Disclosure Number: IPCOM000052841D
Original Publication Date: 1981-Jul-01
Included in the Prior Art Database: 2005-Feb-11

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Balliet, L Romero, CN Walewski, LG [+details]


Alignment of small communication fibers 10 to LEDs (light emitting diodes) and lasers 12 is presently tedious and non-automated. The use of a silicon optical bench 14 with precision etched ""V'' grooves 16 is a present method of easing the alignnent. Fig. 1 shows the silicon optical bench packaging technique. Although the technique simplifies fiber 10 placement, proper emitter 12 placement is determined by manual methods. A solution is presented to ease emitter alignment and, in addition, provide detection diodes that can be used for operational test and/or laser feedback control.