Optic multiplexer or demultiplexer
AssigneeCisco Technology, Inc.
InventorRoman Bruck
Life of this patent
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Abstract
Certain embodiments of the present disclosure are directed towards an optical assembly such as a multiplexers/demultiplexers (MDM). One example optical assembly generally includes: a fiber array configured to provide an optical signal with a plurality of wavelengths; optical wavelength filters configured to separate the plurality of wavelengths into respective optical signals; a lens array configured to receive the respective optical signals from the optical wavelength filters and focus the respective optical signals before reaching an optical interface for a photonic chip; and a birefringent crystal disposed between the lens array and the optical interface.
Claims20
An optical assembly, comprising:
- a fiber array configured to provide an optical signal with a plurality of wavelengths;
- optical wavelength filters configured to separate the plurality of wavelengths into respective optical signals;
- a lens array configured to receive the respective optical signals from the optical wavelength filters and focus the respective optical signals before reaching an optical interface for a photonic chip;
- and
- a birefringent crystal disposed between the lens array and the optical interface.
An optical assembly, comprising:
- a lens array having a first portion and a second portion;
- an optical block;
- optical wavelength filters disposed between the optical block and the first portion of the lens array;
- a spacer disposed between the second portion of the lens array and the optical block;
- and
- a birefringent crystal disposed between the first portion of the lens array and an optical interface for a photonic chip.
A method for optical signal processing, comprising:
- providing, via a fiber array, an optical signal with a plurality of wavelengths;
- separating, via optical wavelength filters, the plurality of wavelengths into respective optical signals;
- focusing, via a lens array, the respective optical signals before reaching an optical interface for a photonic chip;
- and
- providing, via a birefringent crystal and for each of the respective optical signals, optical polarization signals of different polarizations at the optical interface for the photonic chip.
Dependencies are inferred from the claim text.