Optical waveguides – With optical coupler – Particular coupling structure
Patent
1995-10-27
1997-08-05
Palmer, Phan T. H.
Optical waveguides
With optical coupler
Particular coupling structure
385 31, 385 21, 385 45, 372 50, 438 7, 438 27, G02B 630
Patent
active
056550413
ABSTRACT:
A method and apparatus for aligning optical fibers to light input and output ports or ends of a semiconductor waveguide device includes forming an LED diode in the associated substrate proximate each associated port. Each LED is positioned emitting light from the primary output mode position of its associated port. During alignment of an optical fiber to a given port, one end of the fiber is adjustably positioned adjacent the light output/input area at the given port in close contact thereto, and the other end of the optical fiber is connected to an input of an optical power meter the associated LED is energized, and the one end of the optical fiber is adjusted in position to maximize the light output intensity or power detected by the meter.
REFERENCES:
patent: 5524076 (1996-06-01), Rolland et al.
Jeffrey S. Cites and Paul R. Ashley, "High-Performance Mach-Zehnder Modulators in Multiple Quantum Well GaAs/AlGaAs," Journal of Lightwave Technology, vol. 12, No. 7, Jul. 1992.
N. Agrawal, C.M. Weinert, H.-J. Ehrke, G.G. Mekonnen, D. Franke, C. Bornholdt, and R. Langenhorst, "Fast 2 .times. 2 Mach-Zehnder Optical Space Switches Using InGaAsP-InP Multiquantum-Well Structures," IEEE Photonics Technology Letters, vol. 7, No. 6, Jun. 1995.
Chao Chih-Ping
Forrest Stephen R.
Palmer Phan T. H.
The Trustees of Princeton University
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