Techniques to guide optical signals

Details Techniques to guide optical signals Techniques to guide optical signals

2005-01-11

2005-01-11

Ullah, Akm Enayet (Department: 2874)

Optical waveguides

With optical coupler

Particular coupling structure

C385S039000, C385S052000, C385S037000

Reexamination Certificate

active

06842572

ABSTRACT:
A device that compensates for focal point drift of transmitted optical beams caused by ambient temperature changes by using a position adjuster to adjust the alignment of channels of a target planar lightwave circuit (“PLC”). The channels of the target PLC may taper open. In one implementation, the device may also use a birefringence plate to compensate for polarization dependent focal point drift.

REFERENCES:
patent: 5905824 (1999-05-01), Delisle et al.
patent: 6501896 (2002-12-01), Nara et al.
patent: 6738545 (2004-05-01), Purchase et al.
patent: 6763164 (2004-07-01), Kashihara et al.
patent: 20030118284 (2003-06-01), Ide
Yasuo Kokubun “Athermal Waveguides and Temperature Insensitive Lightwave Devices” FH2 (invited/CLEO/Pacific Rim Yokohama National Univ., Dept. of Electr. & Comp. Eng., 1999, pp. 1143-1144.
Yasuo Kokubun, Norihide Funato and Masanori Takizawa “Athermal Waveguides for Temperature-Independent Lightwave Devices”, IEEE Photonics Technology Letters, vol. 5, No. 11, Nov. 1993, pp. 1297-1300.

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