基于高掺铥光纤中法拉第旋转的全光纤光隔离器。

All-fiber optical isolator based on Faraday rotation in highly terbium-doped fiber.

机构信息

Laboratory for Laser Energetics, University of Rochester, 250 East River Road, Rochester, New York 14623-1299, USA.

出版信息

Opt Lett. 2010 Mar 1;35(5):706-8. doi: 10.1364/OL.35.000706.

DOI:10.1364/OL.35.000706

PMID:20195326

Abstract

An all-fiber isolator with 17 dB optical isolation is demonstrated. The fiber Faraday rotator uses 56 wt. % terbium (Tb)-doped silicate fiber, and the fiber polarizers are Corning SP1060 single-polarization fiber. The effective Verdet constant of the Tb-doped fiber is measured to be -24.5+/-1.0 rad/(Tm) at 1053 nm, which is 20 times larger than silica fiber and 22% larger than previously reported results.

摘要

我们展示了一种具有 17 dB 光隔离度的全光纤隔离器。光纤法拉第旋转器采用 56wt%掺铽（Tb）硅酸盐光纤，光纤偏振器为康宁 SP1060 单偏振光纤。在 1053nm 处，测量得到掺铽光纤的有效Verdet 常数为-24.5+/-1.0 rad/(Tm)，比石英光纤大 20 倍，比之前报道的结果大 22%。