WorldCom was a U.S.-based telecom company that underwent one of the largest bankruptcies in U.S. history following a massive spate criminal of accounting fraud.

We demonstrate a vibration detection and localization scheme based on bidirectional transmission of telecom signals with digital coherent detection at the receivers. Optical phase is extracted from ...

For high-bit-rate long-haul fiber optic communications, the avalanche photodiode (APD) is frequently the photodetector of choice owing to its internal gain, which provides a sensitivity margin ...

China Telecom Corp. Ltd. engages in the provision of wireline and mobile telecommunications services. Its products and services include voice, Internet, ...