Optical waveguides – With optical coupler – Particular coupling function
Reexamination Certificate
2005-02-01
2005-02-01
Bovernick, Rodney (Department: 2874)
Optical waveguides
With optical coupler
Particular coupling function
C385S027000, C385S037000, C385S050000, C385S030000, C398S087000
Reexamination Certificate
active
06850665
ABSTRACT:
A wavelength-selective optical device for coupling of light at predetermined wavelength from one optical fiber waveguide to another using at least two gratings and cladding-mode assisted coupling is disclosed. The transfer of light is performed using intermediate coupling to one or more cladding mode of the waveguides. In the case when the fibers have physically different cladding's, an arrangement for transfer of light from one cladding to another is required. The disclosed coupler has no back-reflection, small insertion loss, and very high channel isolation. The device can be used in wavelength-division multiplexing networks.
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Grubsky Victor
Starodubov Dmitry
Bovernick Rodney
Fulwider Patton
Pak Sung
Sabeus Photonics
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