Patent ID: 6011884
Filing Date: 2000-01-04
Classification: G02B

Abstract:
An integrated axial gradient refractive index/diffraction grating wavelength division multiplexer device comprising:(a) means for accepting at least one optical beam containing at least one wavelength from an optical source, said means including a planar front surface onto which said at least one optical beam is incident;(b) a coupler subsystem comprising (1) an axial gradient refractive index collimating lens operatively associated with said planar front surface, and (2) a homogeneous index boot lens affixed to said axial gradient refractive index collimating lens and having a planar exit surface from which said at least one optical beam exits;(c) a diffraction grating formed at said planar exit surface of said coupler subsystem for combining a plurality of spatially separated wavelengths from said at least one optical beam into at least one multiplexed, polychromatic optical beam and for reflecting said at least one multiplexed, polychromatic optical beam back into said coupler subsystem; and(d) means for outputting said at least one multiplexed, polychromatic output beam to an optical receiver, said means including said planar front surface.