Method and apparatus for optical signal and noise analysis...

Method and apparatus for path selection and wavelength...

Method and apparatus for providing a more efficient use of...

Method and apparatus for providing controlled impairments to...

Method and apparatus for rapidly measuring optical...

Method and apparatus for sampled optical signal monitoring

Method and apparatus for self-testing of test equipment

Method and apparatus for switching automatically and...

Method and apparatus for testing an optical component

Method and apparatus for testing optical networks

Method and apparatus for testing transmission lines normally...

Method and apparatus for validating a path through a...

Method and arrangements for determining the optical...

Method and device for data-flow protection of optical...

Method and device for evaluating and improving the quality...

Method and system for automatic initialization of an optical...

Method and system for automatically setting gain for an...

Method and system for communicating network topology in an...

Method and system for compensating for side effects of cross...

Method and system for coordinating and utilizing channel...