Optical isolator employing a germanium-arsenic-selenium composit

Details Optical isolator employing a germanium-arsenic-selenium composit Optical isolator employing a germanium-arsenic-selenium composit

1988-03-28

1989-06-20

LaRoche, Eugene R.

350375, 350378, G02F 109

Patent

active

048404640

ABSTRACT:
A Faraday rotator for rotating a plane of polarization of polarized light, said Faraday rotator having an optical element comprising a rod which is comprised of an optically transmitting composition comprising from about 15 wt. % to about 50 wt. % germanium, from about 5 wt. % to about 20 wt. % arsenic, and from about 30 wt. % to about 80 wt. % selenium. This Faraday rotator is especially useful in an optical isolator for preventing feedback of transmitted light waves.

REFERENCES:
patent: 4033670 (1977-07-01), Tanton et al.
patent: 4280107 (1981-07-01), Scifres et al.
patent: 4604577 (1986-08-01), Matsumura et al.

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