COUPLING TECHNOLOGY IMPACT ON LOW-COST LASER MODULES PERFORMANCES ANDRELIABILITY

In order to decrease optoelectronic components cost dedicated to the A ccess Network, new technologies are emerging especially for the optica l coupling. Through the investigation of 3 different types of laser di odes modules, a first impact evaluation of coupling technology on both performances and reliability is performed. As far as performances are concerned, especially optical coupled power, the most sensitive devic es are receptacle laser diodes. Through temperature cycling, a first e valuation of the long term stability is performed. Again devices based on micro-optics assembly exhibit the weakest behaviour. The most adva nced approach combining mounting on Silicon Platform and << detachable pigtail >> seems to be the most promising. (C) 1998 Elsevier Science Ltd. All rights reserved.