Polarizers and isolators and methods of manufacture

Details Polarizers and isolators and methods of manufacture Polarizers and isolators and methods of manufacture

2007-06-12

2007-06-12

Lavarias, Arnel (Department: 2872)

Optical: systems and elements

Polarization without modulation

Polarization by optical activity

C359S506000, C359S484010, C372S703000

Reexamination Certificate

active

11246482

ABSTRACT:
A passively aligned optical isolator includes laminated layers of material including two polarizing glass layers sandwiching a Faraday rotator layer. Each polarizing glass layer comprises a glass matrix containing elongated metal particles exhibiting a change in polarization axis of less than about 0.0375°/m over a distance of at least 8 mm, as measured across a major surface of the layer. The optical isolator has a contrast ratio greater than 40 dB.

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