Safety shutdown system for a WDM fiber optic communications...
Signal-off detection circuit and optical receiving device...
SONET outage impact measurement technique
Subband spectrum analysis for optical multiplex section...
System and method for a protected optical access ring network
System and method for performing in-service fiber optic...
System and method for performing in-service fiber optic...
System and method for sonet equipment fault management
Technique of identifying a defective subscriber device in a...
Test method and apparatus for parallel optical transceivers...
Transceiver test module employing an optical wrap
Verification of path integrity in optical switch network
Verification of path integrity in optical switch network
Wavelength division multiplex optical ring network