Inventors:
Frank Wang - Sunnyvale CA, US
Darren Crews - Santa Clara CA, US
Lee Xu - Cupertino CA, US
Graham Flower - San Jose CA, US
Miaobin Gao - Saratoga CA, US
Chien-Chang Liu - Sunnyvale CA, US
Jesse Chin - Saratoga CA, US
Brian Kim - Fremont CA, US
William Wang - Pleasanton CA, US
Guobin Liu - San Luis Obispo CA, US
Xiaojie Xu - Superior CO, US
Thiri Lwin - Fremont CA, US
Yousheng Wu - San Jose CA, US
Simon Lee, II - San Jose CA, US
Assignee:
Intel Corporation - Santa Clara CA
International Classification:
G02F 1/00
Abstract:
Embodiments introduce redundant optical channels to significantly extend the lifetime of parallel optical transceivers. A plurality of transmitters, N, transmit on a plurality of optical channels, where N is an integer number of optical channels greater than 1. One or more redundant channels, M, are also provided. N+M multiple input shift registers provide multiple paths for signals from each of the transmitters to connect to N+M laser diodes. In the event up to M of the N+M laser diodes fail, the multiple input shift registers connect the N transmitters to functioning ones of the N+M laser diodes thus extending the life of the device. A corresponding scheme is also described for the receiver side.
