Optical waveguides – With optical coupler – Input/output coupler
Patent
1996-07-30
1998-02-17
Palmer, Phan T. H.
Optical waveguides
With optical coupler
Input/output coupler
385 33, 385123, G02B 632
Patent
active
057199736
ABSTRACT:
An optical device such as an optical fiber waveguide having at least one light transceiving end suitable for transmitting or receiving light, the optical device comprising a core suitable for allowing transmission therethrough of light, a cladding layer surrounding the core and having an index of refraction less than that of the core, and an embedded lens integrally located at the light transceiving end. The embedded lens is preferably a gradient refractive index (GRIN) lens having a refractive index that varies along a radial axis of the light transceiving end of the device and along a longitudinal axis of the light transceiving end of the device. The embedded GRIN lens is comprised of a plurality of dopant regions; the dopant regions comprise regions extending a predetermined distance along the longitudinal axis and having a predetermined diameter. Each dopant region is formed by applying to the light transceiving end of the optical device a mask having an opening with a diameter equivalent to a predetermined diameter, such that an area having the predetermined diameter is exposed, and then bombarding the exposed area with ions of a predetermined energy level. A plurality of like optical devices may be processed in accordance with the present invention in a batch mode by forming an array of devices and utilizing masks appropriate to process each device in parallel.
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Monroe Douglas W.
Shahid Muhammed A.
Lucent Technologies - Inc.
Palmer Phan T. H.
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