Patent Leaderboard
USPTO Patent Rankings Data through Dec 31, 2025
Home › Bidirectional optical amplifying apparatus and optical gain controlling method in a bidirectional WDM optical communication network

Bidirectional optical amplifying apparatus and optical gain controlling method in a bidirectional WDM optical communication network

US Patent 6616351 · Granted Sep 9, 2003

Assignee

Inventors

View full patent text on Google Patents →

More Patents by These Inventors

Method for manufacturing oxide semiconductor thin film transistor2025
Pixel circuit and display including the same2025
Thin film transistor, method of manufacturing the same, and electronic device2024
Spray coater and thin-film transistor manufactured using the same2023
Driving circuit and display including the same2023
Steering wheel apparatus for adjusting stiffness and receiving pressure and meth2015
Method of fabricating thin film transistor using buffer layer and the thin film 2003
Signal monitoring apparatus for wavelength division multiplexed optical telecomm2002
Cold-start wavelength-division-multiplexed optical transmission system2002
Thin film transistor and its fabrication2001
Thin film transistor and method for fabricating the same2000
Thin film transistor and its fabrication2000