Optical waveguides – With optical coupler – Input/output coupler
Patent
1990-07-19
1992-11-10
Lee, John D.
Optical waveguides
With optical coupler
Input/output coupler
385 49, 385 88, G02B 642
Patent
active
051631130
ABSTRACT:
An apparatus for coupling light from a laser chip into an untreated, unetched optical fiber includes a mounting block to which is attached the chip, and a substrate carrier attached to the block and having a channel space extending axially through the substrate carrier. The fiber has a beveled end with an inner and outer face and is positionable within the channel space such that light emitted by the laser chip strikes the inner face of the beveled end and is totally internally reflected into the fiber core. In an alternate coupling assembly, light from the laser chip is reflected by a mirror to form a beam spot on the inner face of the beveled end where it is likewise totally internally reflected into the fiber.
REFERENCES:
patent: 4130343 (1978-12-01), Miller et al.
patent: 4627687 (1986-12-01), Dorn et al.
patent: 4756590 (1988-07-01), Forrest et al.
patent: 4871224 (1989-10-01), Karstensen et al.
Ota et al., "Twelve-Channel Individually Addressable InGaAs/InP p-i-n Photodiode and InGaAsP/InP LED Arrays in a Compact Package", Journal of Light. Tech. vol. LT-5, No. 8, pp. 1118-1122 (Aug. 1987).
Lee et al., "Simple Side Coupler for Coupling Between Laser Diode and Single-Mode Optical Fiber", Applied Optics, vol. 26, No. 12, pp. 2294-2296 (Jun. 1987).
GTE Laboratories Incorporated
Lee John D.
Lohmann, III Victor F.
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