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Optical Supervisory Channel for High Span Loss Optical Communication Systems
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Stable high efficiency multiple wavelength laser sources
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High efficiency single and multiple wavelength stabilized systems
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Single and multiple wavelength reflection and transmission filter arrangements
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Optical multiplexer
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Combination wavelength multiplexer and wavelength stabilizer
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Feedback mechanisms for stabilizing a laser system
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Method for attaching multiple light sources to an optoelectronic module
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Planar star couplers with reduced insertion loss
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Integrated polarization coupler
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