Albert M. Benzoni - South Pasadena CA, US Mark D. Downie - Pasadena CA, US
Assignee:
Xponent Photonics Inc - Monrovia CA
International Classification:
G02B 612
US Classification:
385 14, 385 88, 385129
Abstract:
A recessed area formed on a substrate surface is filled with heat sink material to form a heat sink. The heat sink material has thermal conductivity greater than that of the substrate. The heat sink may have a substantially flat surface substantially flush with the substrate surface. The substrate may further include: a planar optical waveguide formed thereon positioned for optical coupling with an optical device mounted on the substrate in thermal contact with the heat sink; and/or an electrical contact layer formed thereon positioned for establishing electrical continuity with an optical device mounted on the substrate in thermal contact with the heat sink. The electrical contact may also provide thermal contact between the device and heat sink. The substrate may further include a low-index optical buffer layer formed on its surface. Materials for the substrate, buffer layer, and heat sink may include silicon, silica, and diamond, respectively.
Albert M. Benzoni - South Pasadena CA, US Mark E. Temple - Rosemead CA, US Joel S. Paslaski - Alhambra CA, US Henry A. Blauvelt - San Marino CA, US
Assignee:
Xponent Photonics Inc - Monrovia CA
International Classification:
G02B006/36
US Classification:
385 92, 385 88
Abstract:
A packaged fiber-coupled optical device comprises an alignment housing with a fiber retainer, optical fiber segment(s), and optical component(s) (on substrate(s) with fiber groove(s)). Upon assembly the protruding end(s) of the fiber segment(s) is/are positioned against the fiber retainer, and the fiber groove(s) is/are aligned with the protruding end(s) of the fiber segment(s). The fiber retainer urges the protruding end(s) of the fiber segment(s) into the fiber groove(s). The fiber groove(s) position the protruding end(s) of the optical fiber(s) seated therein for optical coupling with optical component(s). The alignment housing and/or a fiber subassembly may be configured for engaging a mating fiber-optic connector.
Albert M. Benzoni - South Pasadena CA, US Henry A. Blauvelt - San Marino CA, US David W. Vernooy - Sierra Madre CA, US Joel S. Paslaski - Alhambra CA, US
Assignee:
Xponent Photonics Inc - Monrovia CA
International Classification:
G02B 6/00 G02B 6/36
US Classification:
385 94, 395147
Abstract:
A method for micro-hermetic packaging of an optical device comprises: forming a micro-hermetic cavity on a substrate; providing a transmission optical waveguide transferring optical power between the interior and the exterior of the micro-hermetic cavity; fabricating or mounting at least one optical device within the micro-hermetic cavity; enabling optical power transfer between the optical device and the transmission optical waveguide; and sealing the optical device within the micro-hermetic cavity. The micro-hermetic cavity may be fabricated of a size comparable to the optical device, and many such cavities may be simultaneously fabricated on a single substrate using wafer-scale processing. The transmission optical waveguide, electrical feed-throughs, and/or other monitoring/controlling components may be provided with the micro-hermetic cavity on the same substrate, or as a separate component and/or on a separate substrate. Alternatively, the optical device, transmission optical waveguide, and any other associated components may be embedded in transparent material for hermetic sealing.
Albert M. Benzoni - South Pasadena CA, US Joel S. Paslaski - San Gabriel CA, US Peter C. Sercel - Pasadena CA, US
Assignee:
Xponent Photonics Inc. - Monrovia CA
International Classification:
G02B 6/36 G02B 6/30 G02B 6/26 G02B 6/00
US Classification:
385 88, 385 83, 385 49, 385137, 385 39
Abstract:
An optical device assembly comprises a substrate with a component and fiber groove thereon. A segment of optical fiber is engaged with the fiber groove, which positions the fiber segment for optical coupling with a component on the substrate. A fiber retainer maintains the fiber segment in engagement with the groove. The fiber retainer may be secured to the substrate with adhesive means. Recessed regions formed on the substrate/retainer are filled with adhesive means, forming retaining members. Alternatively, the fiber retainer comprises a resilient member engaged with the device substrate and biased so as to urge the fiber segment into the groove. The resilient member may be variously configured and/or adapted for enhancing engagement of the fiber segment with the fiber groove. Either embodiment may include a housing, which may be variously configured and/or adapted for engaging a mating fiber-optic connector, providing fiber pigtail(s), mechanical splicing, and so forth.
Fiber-Coupled Optical Device Mounted On A Circuit Board
Henry A. Blauvelt - San Marino CA, US Albert M. Benzoni - South Pasadena CA, US Gerald C. Byrd - North Hollywood CA, US
Assignee:
HOYA Corporation USA - San Jose CA
International Classification:
G02B 6/36
US Classification:
385 88, 385 14, 385 49, 385 92
Abstract:
An optical apparatus comprises: an optical fiber, an optical device on a substrate, a circuit board, and an electrical connection therebetween. The substrate has a groove for positioning the fiber for optical coupling with the optical device. A proximal segment of the fiber is secured to the substrate in the groove. The substrate is mounted on the circuit board, and a second segment of the fiber is secured to the circuit board. A method comprises: mounting on the circuit board the substrate with the optical device; establishing the electrical connection; securing the proximal fiber segment to the substrate in the groove; and securing the second fiber segment to the circuit board. Multiple substrates can be secured to a single piece of circuit board material, which can be divided into individual circuit boards after establishing electrical connections and securing optical fibers to the corresponding substrates and to the circuit board material.
Optical Element For Free-Space Propagation Between An Optical Waveguide And Another Optical Waveguide, Component, Or Device
Henry A. Blauvelt - San Marino CA, US Albert M. Benzoni - South Pasadena CA, US Rolf A. Wyss - Glendale CA, US
Assignee:
HOYA Corporation USA - San Jose CA
International Classification:
H01J 5/02
US Classification:
250239, 25022724
Abstract:
An optical element comprises a substantially transparent material having opposing first and second transmission surfaces and a substantially flat mounting surface between them, an alignment mark, and an optical coating. The optical element is mounted self-supporting on a substrate with the mounting surface on a mating portion thereof. With the alignment mark aligned to a corresponding mark on the substrate, waveguides on the substrate can be end-coupled by reflection from the first transmission surface. The transmission and mounting surfaces are arranged to position the transmission surfaces at respective orientations relative to the substrate surface so that an optical beam propagating substantially parallel to the substrate surface and entering the optical element through the first transmission surface propagates as an optical beam through the optical element above the mounting surface and exits the optical element through the second transmission surface. The optical element can further include a lens or an aperture.
Albert M. Benzoni - South Pasadena CA, US Joel S. Paslaski - San Gabriel CA, US Peter C. Sercel - Pasadena CA, US
Assignee:
HOYA Corporation USA - San Jose CA
International Classification:
G02B 6/36 G02B 6/30 G02B 6/26 G02B 6/00
US Classification:
385 88, 385 83, 385 49, 385137, 385 39
Abstract:
A segment of optical fiber is engaged with a fiber groove on a device substrate, which positions the fiber segment for optical coupling with an optical component on the substrate. A fiber retainer maintains the fiber segment in engagement with the groove. The fiber retainer may be secured to the substrate with adhesive means. The adhesive means forms at least one retaining member that at least partially fills at least one recessed region formed on the device substrate or on the fiber retainer. That recessed region is spatially separate from the fiber groove and from an area of the fiber retainer engaged with the fiber.
Optical Element For Free-Space Propagation Between An Optical Waveguide And Another Optical Waveguide, Component, Or Device
Henry A. Blauvelt - San Marino CA, US Albert M. Benzoni - South Pasadena CA, US Rolf A. Wyss - Glendale CA, US
Assignee:
HOYA Corporation USA - San Jose CA
International Classification:
H01J 3/14
US Classification:
250216, 250239
Abstract:
An optical element comprises a substantially transparent material having opposing first and second transmission surfaces and a substantially flat mounting surface between them, an alignment mark, and an optical coating. The optical element is mounted self-supporting on a substrate with the mounting surface on a mating portion thereof. With the alignment mark aligned to a corresponding mark on the substrate, waveguides on the substrate can be end-coupled by reflection from the first transmission surface. The transmission and mounting surfaces are arranged to position the transmission surfaces at respective orientations relative to the substrate surface so that an optical beam propagating substantially parallel to the substrate surface and entering the optical element through the first transmission surface propagates as an optical beam through the optical element above the mounting surface and exits the optical element through the second transmission surface. The optical element can further include a lens or an aperture.
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