I've come across things like: http://assets.newport.com/webDocuments-EN/images/AN29_Life_Test_Laser_Diode_1310nm_IX.PDF
Which seem to indicate that 30,000-50,000 hours of life from a 1310nm laser diode is within reason (but that's at 60C, and with control circuitry that limits to 20% increase in drive current, and putting out 5mW which is more power than the SM-IR I have). I know for sure that the modules I have have been live for at least 70,000 hours, and they were probably 4-5 years old when I got them, and they were older than the tech referenced in that 2006 paper. If this is all the case it seems like we'd be seeing lots of early-2000's fixed optic Juniper PICs start dying. Maybe enough have come out of service that people just trash them without comment. -Will _______________________________________________ juniper-nsp mailing list [email protected] https://puck.nether.net/mailman/listinfo/juniper-nsp
