Patent
Wavelength division multiplexing optical communications systems.
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TLDR
In this article, a waveguide resonator was adapted to be evanescently coupled to an optical waveguide (F) and optically coupled to the photodetector (500) wherein the resonator is tunable.Abstract:
Optical device (T1) comprising a waveguide resonator (10), a photodetector (500) and the resonator is adapted to be evanescently coupled to an optical waveguide (F) and optically coupled to the photodetector (500) wherein the resonator is tunable. The device further comprises an intracavity element (50) optically coupled to the resonator, a control circuit element (100 arranged to tune the resonator and further comprising either a receiver (300) or an optical gain element (200). The optical gain device may be located on a loop or interconnecting two loops.read more
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References
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Journal ArticleDOI
Wide-band optical communication systems: Part II—Frequency-division multiplexing
TL;DR: Calculations are made to determine the approximate information capacity and other characteristics of several 4000-mile repeaterad systems.
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Optical resonant cavity filters
TL;DR: In this article, the authors describe a wavelength filtering device and system in which an optical resonant cavity is laterally coupled to a trunk waveguide carrying a broad range of wavelengths in the optical spectrum.
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Wavelength selective optical coupler
TL;DR: An optical coupler for a fiber optic communication system, which couples one band of wavelengths out of the fiber while allowing others to be carried further as mentioned in this paper, allows wavelength division multiplexing of different signals within a single fiber.
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TL;DR: In this article, the length of the loop was selected to cooperate with the phase shift of the coupler to provide a resonant cavity, and the coupling constant was chosen to provide full or maximum resonance with zero output power.
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