Optical waveguides – With optical coupler – Input/output coupler
Patent
1994-09-30
1998-03-03
Bovernick, Rodney B.
Optical waveguides
With optical coupler
Input/output coupler
385 1, 385 3, G02B 626, G02B 642
Patent
active
057244642
ABSTRACT:
A compound optical waveguide device which is of a reduced size has an optical waveguide chip, a photodiode, and a laser diode. The optical waveguide chip has a substrate of LiNbO.sub.3, a Y-shaped optical waveguide, a phase modulator, and a polarizer. The substrate has an end face inclined at 70.degree. with respect to the optical axis of the Y-shaped optical waveguide. A photodiode is fixedly mounted on the substrate. A portion of light propagated through the Y-shaped optical waveguide is reflected by the inclined end face to enter the photodiode. Light emitted from the laser diode enters the Y-shaped optical waveguide through the inclined end face.
REFERENCES:
patent: 4981334 (1991-01-01), Sniadower
patent: 5170448 (1992-12-01), Ackley et al.
patent: 5259044 (1993-11-01), Isono et al.
patent: 5291571 (1994-03-01), Kunikane et al.
patent: 5299222 (1994-03-01), Shannon
patent: 5357103 (1994-10-01), Sasaki
patent: 5386484 (1995-01-01), Ooka et al.
patent: 5390271 (1995-02-01), Priest
Patent Abstracts of Japan, JP 5-157944, Jun. 25, 1993, "Two-Way Optical Device".
Patent Abstracts of Japan, JP 2-55304, Feb. 23, 1990, "Optical Integrated Circuit".
Jackson et al., SPIE vol. 994,Jan (1988), pp. 40-47, "Optical Fiber Coupling Approaches for Multi-Channel Laser and Detector Arrays".
H. Terui et al., IEEE Photonics Technology Letters, vol. 4, No. 6, Jun., 1992, "Optical Module with a Silica-Based Planar Lightwave Circuit for Fiber-Optic Subscriber Systems".
Paul G. Suchoski, Jr. et al., SPIE vol. 1795, Jan. 1992, pp. 38-47, "Reliability and accelerated aging of LINbO.sub.3 integrated optic fiber gyro circuits".
Bovernick Rodney B.
NGK Insulators Ltd.
Wise Robert E.
LandOfFree
Compound optical waveguide device does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Compound optical waveguide device, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Compound optical waveguide device will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-2256788