Patent · US Expired

Bidirectional optical amplifier

US5815308A · kind A · utility

35Cited by
7References
10Claims
0Family size

Assignee

Inventors

Key dates

Filing dateMay 20, 1996
Grant dateSep 29, 1998
Priority date
Expiry dateMay 20, 2016

Classification

  • Technology area (CPC H)Electricity
  • CPC primaryH01S3/1608
  • WIPO fieldOptics
  • WIPO sectorInstruments

Abstract

Bidirectional WDM transmission at 2.5 Gb/s using a bidirectional erbium-doped fiber amplifier (EDFA) is demonstrated over a distance of 300 km. A symmetrical EDFA configuration with a frequency tunable reflection attenuator is used as a bidirectional amplifier. Experimental results show that the allowable gain of the EDFA can be increased significantly while the associated bit error rate BER penalty remains negligible.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.