29-09-2016 дата публикации
Номер: US20160282641A1
Принадлежит:
A Faraday rotator mirror, including: a polarizing beam splitter, a polarizing beam converging device made from birefringent crystal, a Faraday rotator, a reflecting mirror. In operation, light rays from an optical coupling element pass through the polarizing beam splitter, the polarizing beam converging device, the Faraday rotator, and the reflecting mirror, in that order, and then return back through the Faraday rotator, the polarizing beam converging device, and the polarizing beam splitter, in that order, and are output from the optical coupling element in reverse to the original incidence path. 1. A Faraday rotator mirror , comprising: a polarizing beam splitter , a polarizing beam converging device made from birefringent crystal , a Faraday rotator , a reflecting mirror; wherein in operation , light rays from an optical coupling element pass through: the polarizing beam splitter , the polarizing beam converging device , the Faraday rotator , and the reflecting mirror , in that order , and then return back through: the Faraday rotator , the polarizing beam converging device , and the polarizing beam splitter , in that order , and are output from the optical coupling element in reverse to an original incidence path.2. The Faraday rotator mirror of claim 1 , wherein the polarizing beam converging device is a birefringent crystal element or a composite element of birefringent crystal.3. The Faraday rotator mirror of claim 2 , wherein the birefringent crystal element or the composite element of birefringent crystal is a Wollaston prism claim 2 , a double Wollaston prism claim 2 , a polarization beam displacer (PBD) claim 2 , a Rochon prism claim 2 , a Nicol prism claim 2 , a birefringent crystal wedge claim 2 , a Senarmont prism claim 2 , or a Nomarski prism.4. A Faraday rotator mirror claim 2 , comprising: a composite element of a polarizing beam splitter and a polarizing beam converging device made from birefringent crystal claim 2 , a Faraday rotator claim 2 , a ...
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