Hui Fu from 424 Natalie Dr, Allentown, PA 18104, age 58, Phone: 610 530-1721

Reconfigurable Laser Header
view source
US Patent:

6647039, Nov 11, 2003
Filed:

Feb 27, 2002
Appl. No.:

10/083838
Inventors:

Hui Fu - Allentown PA
Robert K. Wolf - Fleetwood PA
Assignee:

JDS Uniphase Corporation - San Jose CA
International Classification:

H01S 304
US Classification:

372 36, 372 50
Abstract:

A reconfigurable laser header assembly, wherein either an n-doped laser substrate structure or a p-doped laser substrate structure can be properly biased, includes a header coupled to a modulated electric (AC) current source, a DC positive bias electric current source, and a DC negative electric current source. A laser is mounted relative to the header, the laser includes a base electric contact and a laser electric contact. An electrical conductor on the header includes first and second metalized regions in electrical connection with the base electric contact, wherein different ones of the modulated electric current source, the bias electric current source, and the DC negative electric current source can be electrically connected to the first metalized region, the second metalized region, and the laser electric contact to properly bias the laser regardless of whether the laser is an n-doped laser substrate structure or a p-doped laser substrate structure.

Method For Improving Heat Dissipation In Optical Transmitter
view source
US Patent:

6773532, Aug 10, 2004
Filed:

Feb 27, 2002
Appl. No.:

10/086031
Inventors:

Robert K. Wolf - Fleetwood PA
Hui Fu - Allentown PA
Assignee:

JDS Uniphase Corporation - San Jose CA
International Classification:

B32B 3100
US Classification:

156182, 156 60, 156297, 361103, 361821
Abstract:

A method of positioning a heat generating component on a header to enhance heat sinking characteristics includes positioning the header on a first pedestal, wherein the first pedestal and the header are bounded by an air trench having a vertical surface, and positioning the heat generating component only in areas on the header having an associated heat dissipation conical region extending from the heat generating component downward through the first pedestal at an angle that satisfies Fouriers Law of Heat Conduction, wherein the conical region does not intersect the vertical surface of the air trench.

Air Trench That Limits Thermal Coupling Between Laser And Laser Driver
view source
US Patent:

6859470, Feb 22, 2005
Filed:

Feb 27, 2002
Appl. No.:

10/084798
Inventors:

Hui Fu - Allentown PA, US
Robert K. Wolf - Fleetwood PA, US
Assignee:

JDS Uniphase Corporation - San Jose CA
International Classification:

H01S003/04
US Classification:

372 34, 372 36
Abstract:

An optical transmitter includes a header, a hybrid subassembly, a laser mounted on the header, a laser driver mounted on the hybrid subassembly, and an air trench formed between the header and the hybrid subassembly.

Compact Optical Sub-Assembly
view source
US Patent:

7322754, Jan 29, 2008
Filed:

Feb 9, 2005
Appl. No.:

11/054453
Inventors:

Robert K. Wolf - Fleetwood PA, US
Hui Fu - Allentown PA, US
Anthony T. Yesenofski - Allentown PA, US
Chris Hart - West Melbourne FL, US
Erji Mao - San Jose CA, US
Heino Bukkems - Santa Clara CA, US
William K. Hogan - Merritt Island FL, US
Assignee:

JDS Uniphase Corporation - Milpitas CA
International Classification:

G02B 6/42
US Classification:

385 93, 385 88, 385 92, 385 94
Abstract:

The invention relates to a compact transmitter optical sub-assembly (OSA), which can be used in small form factor optical transceivers. To limit back reflections from entering the laser cavity, the laser is disposed on a silicon optical bench (SiOB) at an acute angle to the longitudinal axis of the OSA. A portion of the light from the laser cavity passes through the back end of the laser cavity for measuring by a monitor photodiode. A rear beam steering lens redirects the portion of light into a v-groove in the SiOB and off of a reflective surface formed in the end thereof to the monitor photodiode, which is positioned face down over the v-groove.

Optical Package With Dual Interconnect Capability
view source
US Patent:

20020008306, Jan 24, 2002
Filed:

Mar 15, 2001
Appl. No.:

09/808654
Inventors:

Fridolin Bosch - Bethlehem PA, US
Hui Fu - Allentown PA, US
James Plourde - Allentown PA, US
International Classification:

H01L021/76
H01L029/40
H01L023/48
US Classification:

257/664000, 257/692000, 257/693000, 257/735000, 438/411000, 257/784000, 438/617000
Abstract:

An electronic package is adapted to be coupled in a single-ended configuration and in a differential configuration. The package provides a characteristic impedance of approximately 50 ohms when configured in a single-ended mode and also when configured in the differential mode. The package includes multiple terminals, which are coupled to ground, S, and {overscore (S)}. The package may be configured externally by the user for either mode. The package may also be fabricated to be coupled in either the differential mode or single-ended mode for user specific applications.

Optical Transmitter Header Having Passive Electrical Component
view source
US Patent:

20030161133, Aug 28, 2003
Filed:

Feb 27, 2002
Appl. No.:

10/085155
Inventors:

Hui Fu - Allentown PA, US
Anthony T. Yesenofski - Allentown PA, US
Robert K. Wolf - Fleetwood PA, US
Assignee:

Optronx
International Classification:

H05K007/00
US Classification:

361/821000
Abstract:

A header assembly for use in an optical transmitter. The header assembly includes a header, a laser mounted on the header, and at least one passive electronic component mounted on the header, wherein the passive electronic component is one from the group of: an inductor, a capacitor, and a resistor.

Optical Transmitter And Transponder That Operate Without Thermoelectric Cooler
view source
US Patent:

20030161363, Aug 28, 2003
Filed:

Feb 27, 2002
Appl. No.:

10/084137
Inventors:

Robert Wolf - Fleetwood PA, US
Duane Stackhouse - Coopersburg PA, US
Anthony Yesenofski - Allentown PA, US
Hui Fu - Allentown PA, US
Mary Nadeau - Alburtis PA, US
Wenhong Qin - Breinigsville PA, US
Assignee:

Optronx, Inc.
International Classification:

H01S003/04
US Classification:

372/034000
Abstract:

An optical transmitter that includes a laser that operates in the range of 1260-1360 nm, wherein the laser is in a transmitter package case that covers less than 0.30 square inches of surface area on a board to which the package case is mounted, wherein the optical transmitter continues to function in compliance with the transmission requirements of international telecommunciations union (ITU) standard 693 without thermoelectric cooling when an external temperature of the transmitter package case is at or within 1 C. of a temperature of the laser.

Co-Planar Waveguide
view source
US Patent:

20030161588, Aug 28, 2003
Filed:

Feb 27, 2002
Appl. No.:

10/084042
Inventors:

Robert Wolf - Fleetwood PA, US
Hui Fu - Allentown PA, US
Assignee:

Optronx, Inc.
International Classification:

G02B006/42
US Classification:

385/088000
Abstract:

A coplanar waveguide includes a header, a laser mounted on the header, a hybrid subassembly, wherein an air trench is formed between the hybrid subassembly and the header, a laser driver mounted on the hybrid subassembly, and a waveguide, wherein electrical energy applied from the laser driver is directed through the waveguide at the laser driver, the waveguide forms a ninety degree turn within a substantially horizontal plane, and the distance that the electrical energy travels through the coplanar waveguide is minimized.