Pump power depreciation by photodarkening in ytterbium-doped fibers and amplifiers

• Main Authors: Li, Nanxi, Yoo, Seongwoo, Yu, Xia, Jain, Deepak, Sahu, Jayanta K.
• Other Authors: School of Electrical and Electronic Engineering
• Format: Article
• Language: English
• Published: 2014
• Subjects: DRNTU::Engineering::Electrical and electronic engineering
• Online Access: https://hdl.handle.net/10356/103388; http://hdl.handle.net/10220/19303
• Institution: Nanyang Technological University

In this letter, pump power depreciation due to photodarkening effects in an ytterbium doped fiber (YDF) is investigated. Photodarkening is monitored by measuring the transmitted power at visible and pump wavelengths simultaneously, which renders direct quantitative measurement of pump power reductio...