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Wavelength-tunable optical ring resonators

Optical waveguides – With optical coupler – Input/output coupler
Reexamination Certificate

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Wavelength-variable light source and OTDR apparatus

Optical waveguides – With optical coupler – Switch
Patent

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WDM channel equalization and control

Optical waveguides – With optical coupler – Plural
Reexamination Certificate

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WDM filter

Optical waveguides – With optical coupler – Plural
Reexamination Certificate

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WDM multiplexer

Optical waveguides – With optical coupler – Plural
Reexamination Certificate

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WDM Multiplexer-Demultiplexer using fabry-perot filter array

Optical waveguides – With optical coupler – Plural
Patent

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WDM optical communication system

Optical waveguides – With optical coupler – Particular coupling function
Reexamination Certificate

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WDM optical fiber communication system with improved dispersion

Optical waveguides – With optical coupler – Plural
Patent

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WDM optical transmitter

Optical waveguides – With optical coupler – Plural
Patent

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WDM ring interconnection

Optical waveguides – With optical coupler – Plural
Reexamination Certificate

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WDM ring network for flexible connections

Optical waveguides – With optical coupler – Plural
Reexamination Certificate

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WDM ring transmission system having reduced adjacent channel cro

Optical waveguides – With optical coupler – Plural
Patent

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WDM switch using OADM and control method thereof

Optical waveguides – With optical coupler
Reexamination Certificate

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WDM systems incorporating adiabatic reflection filters

Optical waveguides – With optical coupler – Particular coupling function
Patent

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WDM transmission system

Optical waveguides – With optical coupler – Plural
Reexamination Certificate

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WDM transmitter and receiver

Optical waveguides – With optical coupler – Plural
Reexamination Certificate

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WDM utilizing diffraction gratings with polarization...

Optical waveguides – With optical coupler – Plural
Reexamination Certificate

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Weak coupling bridge for optical fiber cores

Optical waveguides – With optical coupler – Particular coupling function
Reexamination Certificate

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Wedge prism optical switches

Optical waveguides – With optical coupler – Switch
Reexamination Certificate

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Wedged and lensed optical fiber

Optical waveguides – With optical coupler – Input/output coupler
Reexamination Certificate

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