Lih Y Lin from 4712 48Th Ave NE, Seattle, WA 98105, age 56, Phone: 2065251246

Us Patents

Monolithic Integration Of Control Elements And Micro-Mirror In An Optical Switch
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US Patent:

6470110, Oct 22, 2002
Filed:

Oct 19, 2000
Appl. No.:

09/691193
Inventors:

Lih Y. Lin - Little Silver NJ
Assignee:

Tellium, Inc. - Oceanport NJ
International Classification:

G02B 626
US Classification:

385 18, 385 15, 385 16, 385 17, 385 14
Abstract:

An optical device includes a compact and low cost integration of a movable micro-mirror and control mechanisms. The optical devices may be manufactured using microelectromechanical system (MEMS) technology. The optical device may be used in a high port count optical switch, such as an optical cross connect for use in an optical telecommunication system, that uses beam steering to couple light from input fibers to selected output fibers.

Monolithic Integration Of Signal-Monitoring Scheme In An Optical Switch
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US Patent:

6493475, Dec 10, 2002
Filed:

Oct 19, 2000
Appl. No.:

09/691225
Inventors:

Lih Y. Lin - Little Silver NJ
Assignee:

Tellium, Inc. - Oceanport NJ
International Classification:

G02B 612
US Classification:

385 14, 385 33, 385 49, 385 88, 385 89
Abstract:

An integrated device includes a micro-lens and an opto-electronic device can be formed on a single substrate. The opto-electronic device may be one or more photodetectors and the micro-lens may be shaped to allow partial absorption of light incident to the micro-lens by the photodetectors. The integrated device is capable of simultaneously performing position detection, signal monitoring, and focusing/collimation.

Optical Switch And Method For Aligning Optical Switch Components
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US Patent:

6591029, Jul 8, 2003
Filed:

Jan 5, 2001
Appl. No.:

09/754395
Inventors:

Lih Y. Lin - Little Silver NJ
Nicolas H. Bonadeo - Aberdeen NJ
Assignee:

Tellium, Inc - Oceanport NJ
International Classification:

G02B 635
US Classification:

385 17, 385 37
Abstract:

An optical switch having a fiber/lens array and a switching substrate may be properly aligned using one or more grating(s) provided on the switching substrate. The grating(s) may be designed to have a predetermined response when the fiber/lens array and switching substrate are properly aligned. For example, the grating(s) may reflect incident light back into an input fiber, where the back-reflected light may be detected. Accordingly, the position of the switching substrate and/or fiber/lens array may be adjusted until back reflected light having predetermined power is detected.

Temperature Control Of Micro-Mirrors Of An Optical Switch Substrate
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US Patent:

6633693, Oct 14, 2003
Filed:

Mar 27, 2001
Appl. No.:

09/817238
Inventors:

David R. Peale - Tinton Falls NJ
Walter Framski - Prospect CT
Lih Lin - Little Silver NJ
Assignee:

Tellium, Inc. - Oceanport NJ
International Classification:

G02B 642
US Classification:

385 18
Abstract:

A temperature control system is provided for an optical switch including steerable micro-mirrors. The system includes at least one sensor and associated sensing circuitry for measuring the temperature of a micro-mirror or a region of a substrate near a micro-mirror. The system also includes a controller that responds to a signal provided by the sensing circuitry. The controller response may include activating heating or cooling devices the region that is sensed to adjust the temperature of the region.

Multiple Quantum Dot Waveguides
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US Patent:

7706660, Apr 27, 2010
Filed:

May 18, 2007
Appl. No.:

11/750787
Inventors:

Lih Y. Lin - Seattle WA, US
Chia-Jean Wang - Bellevue WA, US
Babak A. Parvis - Seattle WA, US
Assignee:

University of Washington - Seattle WA
International Classification:

G02B 6/00
G02B 6/10
B05D 5/06
US Classification:

385143, 385 14, 385122, 385129, 385130, 385141, 385142, 427162, 359333, 359342
Abstract:

The present invention relates to an assembly of multiple waveguides which includes a substrate and a plurality of waveguides positioned on said substrate at locations effective to suppress cross-talk between different waveguides. The plurality of waveguides each comprise an elongate array of quantum dots extending between sets of first and second locations on the substrate. The waveguides are positioned to receive: (1) pumped light uniformly applied to the array to produce electron-hole pairs and to enable optical gain and (2) signal light at the first location to trigger an emission from the quantum dot at the first location and transmission of photons along the array to the second location. A light transmission system which includes this assembly as well as methods of making and using the assembly are also disclosed.

Color-Selective Quantum Dot Photodetectors
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US Patent:

8598567, Dec 3, 2013
Filed:

May 17, 2011
Appl. No.:

13/109816
Inventors:

Ludan Huang - Seattle WA, US
Lih Y. Lin - Seattle WA, US
Assignee:

University of Washington through its Center for Commercialization - Seattle WA
International Classification:

H01L 31/109
US Classification:

257 21, 257257
Abstract:

Photoconductive optoelectronic devices, such as photodetectors and photovoltaics, are provided. The devices are sensitized to a particular wavelength (or range of wavelengths) of electromagnetic radiation such that the devices provide increased performance efficiency (e. g. , external quantum efficiency) at the wavelength. The devices include a photoconductive semiconductor layer spanning an electrode gap between two electrodes to provide a photoconductive electrical conduit. Abutting the semiconductor layer is a plurality of plasmonic nanoparticles. The improved efficiency of the devices results from wavelength-dependent plasmonic enhancement of device photosensitivity by the plasmonic nanoparticles.

Multiple Quantum Dot Waveguides
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US Patent:

20100220970, Sep 2, 2010
Filed:

Mar 2, 2010
Appl. No.:

12/715967
Inventors:

Lih Y. LIN - Seattle WA, US
Chia-Jean WANG - Bellevue WA, US
Babak A. PARVIS - Seattle WA, US
Assignee:

UNIVERSITY OF WASHINGTON - Seattle WA
International Classification:

G02B 6/00
H04B 10/12
H05K 3/00
G02B 6/10
US Classification:

385141, 3593413, 29829, 385129
Abstract:

The present invention relates to an assembly of multiple waveguides which includes a substrate and a plurality of waveguides positioned on said substrate at locations effective to suppress cross-talk between different waveguides. The plurality of waveguides each comprise an elongate array of quantum dots extending between sets of first and second locations on the substrate. The waveguides are positioned to receive: (1) pumped light uniformly applied to the array to produce electron-hole pairs and to enable optical gain and (2) signal light at the first location to trigger an emission from the quantum dot at the first location and transmission of photons along the array to the second location. A light transmission system which includes this assembly as well as methods of making and using the assembly are also disclosed.

Free-Space Micro-Mirror Wavelength Add/Drop Multiplexers With Full Connectivity For Two-Fiber Ring Networks
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US Patent:

62891480, Sep 11, 2001
Filed:

Dec 14, 1999
Appl. No.:

9/460822
Inventors:

Lih Y. Lin - Little Silver NJ
Adel A. M. Saleh - Holmdel NJ
Assignee:

AT&T Corporation - Middletown NJ
International Classification:

G02B 600
G02B 628
US Classification:

385 24
Abstract:

The present invention provides a device for performing wavelength add/drop multiplexing utilizing micromachined free-rotating switch mirrors. The free-space nature of the switch mirrors allow use of the front and back sides of the mirrors for reflecting signals. According to one embodiment of the present invention a WADM is provided in which micromachined switch mirrors are arranged in a polygonal (e. g. , hexagonal) geometry, which allows full connectivity. According to one embodiment a WADM is provided for deployment in a unidirectional two-fiber optical network including service and protection fiber routes. According to this embodiment the WADM includes a first input port for receiving a WDM signal from the service fiber route and a second input port for receiving a WDM signal from the protection fiber route. The WADM also includes a first output port for transmitting a WDM signal to the service fiber route, a second output port for transmitting a WDM signal to the protection fiber route, a third input port for receiving locals signals from a local access port and a third output port for dropping signals to a local access port. The WADM further includes a reconfigurable switching matrix comprising a plurality of free-space micromirrors, for performing routing of signals from the various input ports to the various output ports.