Multifunctional intelligent optical modules based on planar lightwave circuits

US6801679B2 · kind B2 · utility

Inventors

• Seungug Koh · Sunnyvale, US
• Danjin Wu · Sunnyvale, US

Key dates

• Filing date: Nov 25, 2002
• Grant date: Oct 5, 2004
• Expiry date: Apr 16, 2023

Classification

• Technology area (CPC G): Physics
• CPC primary: G02B2006/12195
• WIPO field: Optics
• WIPO sector: Instruments

Abstract

Since the bandwidth-intensive applications such as Internet access, electronic commerce, multimedia applications, and distributed computing are rapidly increasing the volume of telecommunication traffics, optical networks become an essential backbone of telecommunication networks. The optical networks have shown a superior performance/cost ratio for both long-haul and short-haul routes and the emerging dense wavelength division multiplexing and all-optical network technologies have promised a potential to improve speed, capacity and connectivity of telecommunication networks. The present invention provides a multifunctional intelligent optical module (IOM) by integrating a multitude of photonic, electronic, and micro mechanical elements into a single module. The multifunctional IOM is an integrated hybrid microsystem and it applicable to fast network provisioning, reliable protection switching, instant fault detection/correction, guaranteed quality-of-service, accurate optical performance monitoring, and efficient optical transmission engineering.