Wavelength division multiplexing/demultiplexing devices using dual homogeneous refractive index lenses
AssigneeLightChip, Inc.
InventorRobert K. Wade
Life of this patent
Estimating the term…
Abstract
A wavelength division multiplexing device is disclosed. In a preferred embodiment, the wavelength division multiplexing device comprises a homogeneous refractive index collimating lens for collimating a plurality of monochromatic optical beams, a diffraction grating for combining the plurality of collimated, monochromatic optical beams into a multiplexed, polychromatic optical beam, and a homogeneous refractive index focusing lens for focusing the multiplexed, polychromatic optical beam.
Claims54
A wavelength division multiplexing device comprising:
- a homogeneous refractive index collimating lens for collimating a plurality of monochromatic optical beams;
- a diffraction grating for combining the plurality of collimated, monochromatic optical beams into a multiplexed, polychromatic optical beam;
- and
- a homogeneous refractive index focusing lens for focusing the multiplexed, polychromatic optical beam.
An integrated wavelength division multiplexing device comprising:
- a homogeneous refractive index collimating lens for collimating a plurality of monochromatic optical beams;
- a homogeneous refractive index boot lens affixed to the homogeneous refractive index collimating lens for transmitting the plurality of collimated, monochromatic optical beams from the homogeneous refractive index collimating lens, the homogeneous refractive index boot lens having a planar exit surface;
- and
- a diffraction grating formed at the planar exit surface of the homogeneous refractive index boot lens for combining the plurality of collimated, monochromatic optical beams into a multiplexed, polychromatic optical beam.
An integrated wavelength division multiplexing device comprising:
- a homogeneous refractive index focusing lens for focusing a multiplexed, polychromatic optical beam;
- a homogeneous refractive index boot lens affixed to the homogeneous refractive index focusing lens for transmitting the multiplexed, polychromatic optical beam to the homogeneous refractive index focusing lens, the homogeneous refractive index boot lens having a planar entry surface;
- and
- a diffraction grating formed at the planar entry surface of the homogeneous refractive index boot lens for combining a plurality of monochromatic optical beams into the multiplexed, polychromatic optical beam.
A wavelength division demultiplexing device comprising:
- a homogeneous refractive index collimating lens for collimating a multiplexed, polychromatic optical beam;
- a diffraction grating for separating the collimated, multiplexed, polychromatic optical beam into a plurality of monochromatic optical beams;
- and
- a homogeneous refractive index focusing lens for focusing the plurality of monochromatic optical beams.
An integrated wavelength division demultiplexing device comprising:
- a homogeneous refractive index collimating lens for collimating a multiplexed, polychromatic optical beam;
- a homogeneous refractive index boot lens affixed to the homogeneous refractive index collimating lens for transmitting the collimated, multiplexed, polychromatic optical beam from the homogeneous refractive index collimating lens, the homogeneous refractive index boot lens having a planar exit surface;
- and
- a diffraction grating formed at the planar exit surface of the homogeneous refractive index boot lens for separating the collimated, multiplexed, polychromatic optical beam into a plurality of monochromatic optical beams.
An integrated wavelength division demultiplexing device comprising:
- a homogeneous refractive index focusing lens for focusing a plurality of monochromatic optical beams;
- a homogeneous refractive index boot lens affixed to the homogeneous refractive index focusing lens for transmitting the plurality of monochromatic optical beams to the homogeneous refractive index focusing lens, the homogeneous refractive index boot lens having a planar entry surface;
- and
- a diffraction grating formed at the planar entry surface of the homogeneous refractive index boot lens for separating a multiplexed, polychromatic optical beam into the plurality of monochromatic optical beams.
Dependencies are inferred from the claim text.