Non-moving parts add/drop device

Details Non-moving parts add/drop device Non-moving parts add/drop device

2006-04-18

2006-04-18

Boutsikaris, Leonidas (Department: 2872)

Optical: systems and elements

Polarization without modulation

Depolarization

C359S490020, C359S490020, C385S011000, C385S024000, C398S083000, C398S086000

Reexamination Certificate

active

07031060

ABSTRACT:
The instant invention provides an add/drop device including a wavelength filter, a quarter waveplate disposed on either side of the wavelength filter, and a polarizing beamsplitter disposed on either side of the quarter waveplates. Each polarizing beamsplitter has an input port and an output port for launching and receiving a beam of light having a known polarization. A polarization switch is optically coupled to each input/output port for selectably rotating the polarization of the input/output beams of light. Advantageously, the polarization switches, which work in cooperation with each other and the polarizing beam splitters, provide means for a non-moving parts add/drop device.

REFERENCES:
patent: 4973124 (1990-11-01), Kaede
patent: 5223975 (1993-06-01), Naganuma et al.
patent: 5381250 (1995-01-01), Meadows
patent: 5606439 (1997-02-01), Wu
patent: 5694233 (1997-12-01), Wu et al.
patent: 5978116 (1999-11-01), Wu et al.
patent: 6035080 (2000-03-01), Henry et al.
patent: 6687423 (2004-02-01), Yao
patent: 6920258 (2005-07-01), Tai

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