BS EN 61290-4-1:2011

Optical amplifiers. Test methods. Gain transient parameters. Two-wavelength method | Status: Revised, Superseded, Withdrawn

1 Scope and object This part of IEC 61290‑4 applies to erbium-doped fibre amplifiers (EDFAs) and optically amplified elementary sub-systems. It applies to OAs using active fibres (optical fibre amplifiers, OFAs), containing rare-earth dopants. These amplifiers are commercially available and widely deployed in service provider networks. The object of this part of IEC 61290‑4 is to provide the general background for EDFA transients and related parameters, and to describe a standard test method for accurate and reliable measurement of the following transient parameters:

• • Channel addition/removal transient gain overshoot and transient net gain overshoot
• • Channel addition/removal transient gain undershoot and transient net gain undershoot
• • Channel addition/removal gain offset
• • Channel addition/removal transient gain response time constant (settling time)