Optical waveguides – Polarization without modulation
Patent
1997-02-11
1998-09-22
Palmer, Phan T. H.
Optical waveguides
Polarization without modulation
385 4, 385 1, 385 31, 385 33, G02B 600
Patent
active
058127070
ABSTRACT:
An apparatus, such as an optical modulator, which includes an optical waveguide and a polarizer housing device. The optical waveguide has an input end to receive light, and the polarizer housing device is connected to the input end of the optical waveguide. The polarizer housing device includes a polarizer which polarizes light, and a lens. A propagation space is in the polarizer housing device between the polarizer and the lens. The light polarized by the polarizer travels through the propagation space to the lens and is guided by the lens to the input end of the optical waveguide. The polarizer is bonded to the polarizer housing device with an adhesive so that no excess adhesive flows into the propagation space. Therefore, it is not necessary to use an optical adhesive to bond the polarizer to the polarizer housing device.
REFERENCES:
patent: 4932783 (1990-06-01), Kersey et al.
patent: 5104222 (1992-04-01), Kersey et al.
patent: 5444803 (1995-08-01), Kim et al.
Omori et al., "Broad-band LINbO.sub.3 Polarization Scrambler", Proceedings of the 1996 IEICE General Conference, Tokyo, Japan, Mar. 28-31, 1996. (Japanese version and English language translation).
Fukushima Nobuhiro
Sawae Shinya
Yamane Takashi
Fujitsu Limited
Palmer Phan T. H.
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