公开(公告)号：US20140218795A1

公开(公告)日：2014-08-07

申请号：US14167695

申请日：2014-01-29

Applicant: Electro-Optics Technology, Inc.

Inventor： David Scerbak

IPC: G02F1/09

CPC classification number: G02F1/093 ,  G02F2201/17 ,  G02F2203/60

Abstract: Transparent heat-conductive layers of significant thickness are bonded or adhered to opposing optical faces of a Faraday optic to form a Faraday optic structure that can be used with beam-folding mirrors and an external magnetic field to form a multi-pass Faraday rotator with minimal thermal gradient across the beam within the Faraday optic. The transparent heat conductive layers conduct heat through the Faraday optic substantially parallel to the beam propagation axis for each pass through the Faraday optic structure and thereby reduce thermal gradients across the beam cross section that would otherwise contribute to thermal lens focal shifts and thermal birefringence in the Faraday optic structure. The multi-pass Faraday rotator of this invention is suitable for use with any device based upon the Faraday effect such as optical isolators, optical circulators and Faraday mirrors that are scalable with beam size to power levels in excess of 2 kW.

Abstract translation: 具有相当厚度的透明导热层被结合或粘附到法拉第光学器件的相对的光学面上，以形成法拉第光学结构，该结构可用于光束折射镜和外部磁场，以形成具有最小的多通法拉第旋光器 法拉第光学元件内横梁的热梯度。 透明导热层通过法拉第光学器件基本上平行于光束传播轴线传导热量，用于每次通过法拉第光学结构，从而减少横截面上的热梯度，否则这将导致热透镜焦点偏移和热双折射 法拉第光学结构。 本发明的多通法拉第旋转器适用于基于法拉第效应的任何装置，例如光学隔离器，光学循环器和法拉第反射镜，其具有可扩展的光束尺寸至功率水平超过2kW。