What is BS EN IEC 61290 ‑ 4 ‑ 3 - Optical amplifiers about?
BS EN IEC 61290 is a series on optical amplifiers. An optical amplifier is a device that amplifies an optical signal directly, without the need to first convert it to an electrical signal. An optical amplifier may be thought of as a laser without an optical cavity , or one in which feedback from the cavity is suppressed. BS EN IEC 61290 ‑ 4 ‑ 3
BS EN IEC 61290-4-3:2018 history
2018BS EN IEC 61290-4-3:2018 Optical amplifiers. Test methods - Power transient parameters. Single channel optical amplifiers in output power control