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Patent Granted for Double Mirror Structure for Wavelength Division Multiplexing

Strategic Insights

— 1 min read

The United States Patent and Trademark Office has granted patent no. 9,086,551 to INTERNATIONAL BUSINESS MACHINES CORPORATION (New York), titled "Double mirror structure for wavelength division multiplexing with polymer waveguides." The patent was awarded on July 21, 2015, to inventors Jean Benoit Heroux of Tokyo, Japan. The double mirror structure is designed for wavelength filtering, forming grooves in a waveguide to define angled surfaces, and depositing cladding material on top of the waveguide and angled surfaces.

Key Takeaways:

  • The patent, granted on July 21, 2015, addresses methods for wavelength filtering and structures for accomplishing the same.
  • Inventor Jean Benoit Heroux of Tokyo, Japan, is credited with developing the double mirror structure.
  • The structure involves forming grooves in a waveguide to define angled surfaces, depositing a reflective layer on the angled surfaces, and depositing cladding material on top of the waveguide and angled surfaces.
  • The double mirror structure is designed for use in wavelength division multiplexing (WDM) with polymer waveguides.
  • The patent was filed on October 30, 2013, with application no. 14/067,535.
  • INTERNATIONAL BUSINESS MACHINES CORPORATION (New York) is the assignee of the patent.
  • The patent abstract describes forming a filter layer on an active region of an opto-electronic device, which transmits a single wavelength and reflects other wavelengths used.
  • The opto-electronic device is deposited on the cladding layer such that the filter layer is aligned with a point of incidence of a light beam reflected from the reflective layer.
  • The opto-electronic device is electrically bonded to vias in the waveguide structure.

Statistics:

  • Patent no.: 9,086,551
  • Filing date: October 30, 2013
  • Application no.: 14/067,535
  • Grant date: July 21, 2015
  • Assignee: INTERNATIONAL BUSINESS MACHINES CORPORATION (New York)

Sources:

  • United States Patent and Trademark Office
  • Patent no. 9,086,551

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