| Article ID | Journal | Published Year | Pages | File Type |
|---|---|---|---|---|
| 1533855 | Optics Communications | 2016 | 4 Pages |
•Characteristics of terbium doped borogermanate glass (TBG) were investigated.•Verdet constant of TBG is only 10% lower that for the traditional TGG medium.•The isolation ratio of Faraday isolator on TBG is 30 dB for the laser power of 350 W.•TBG may be used for FI in the “eye-safe” wavelength range unaccessible for TGG.
The temperature dependence of Verdet constant and thermo-optical characteristics of a new magneto-optical borogermanate glass has been investigated. The performed analysis confirmed a possibility of developing a Faraday isolator and a cryogenic Faraday isolator based on the studied medium, providing a 25 dB isolation ratio of laser radiation in the “eye-safe” wavelength range (1530–1620 nm) at the power of 0.4 kW and 1.3 kW, respectively, which is a leading-edge result for magneto-optical glasses.
