Jin Y Yu

20040208566, Oct 21, 2004

Jan 9, 2002

10/041064

Jin Yu - Aliso Viejo CA, US

H04J014/02

398/079000

A Coarse Wavelength Division Multiplex (CWDM) system comprises a plurality of transmission channels to send data from transmitter site to remote receiver over a single trunk fiber. The lasers of all channels are un-cooled in transmitter site. The wavelength plan associated with the de-multiplexing filter pass-band of each channel in receiver site tolerates the wavelength variation of 5 nm when the temperature changes from 0 to 50 C. degree. The de-/multiplexing device has two stages. The first stage has a plurality element, each to de-/multiplex between multiple individual channels and a small band of wavelength. The second stage de-/multiplexes between multiple small bands and the entire large band. A plurality of semiconductor optical amplifiers is placed between the two stages of the de-/multiplexing component to compensate optical loss to all optical channels over optical fiber and other optical components.

20070258722, Nov 8, 2007

May 8, 2007

11/745986

Jin Yu - Irvine CA, US

H04B 10/06

398212

An optical receiver for enhanced optical power sensitivity for optical signal at 10 Gbps includes an optical package and a supporting electrical circuitry. The optical package includes a semiconductor optical amplifier to pre-amplify the incoming weak signal, a tunable optical filter to suppress the spontaneous noise of the amplifier and a PIN diode as an optical detector. A supporting electrical circuitry includes a control loop for the filter to track the peak of the optical signal. By optimizing the parameters of all the elements, the final sensitivity of the optical receiver can be increased significantly. The device may be realized in a single package.

20090202241, Aug 13, 2009

Feb 6, 2009

12/367406

Jin Yu - Irvine CA, US
Randy K. Schwarz - Santa Ana CA, US

H04J 14/00

398 58

An optical distribution system for vehicle information systems installed aboard passenger vehicles, such as automobiles and aircraft, and methods for manufacturing and using same. Each system resource of the vehicle information system couples with the optical distribution system via an optical transceiver system. The optical transceiver systems provide a link interface between the system resources and the optical distribution system for supporting the transmission and reception of optical communication signals among the system resources via the optical distribution system. The optical distribution system couples the system resources via fiber optic communication connections that can support high data transfer rates. Being light weight, compact, and requiring little, if any, electrical power, the optical distribution system advantageously supports full communications among the system resources of the vehicle information system, while reducing the costs of operating and transporting the vehicle information system aboard the passenger vehicle.

20190314194, Oct 17, 2019

Aug 14, 2017

16/319298

Alex ARTSYUKHOVICH - Irvine CA, US
Jin YU - Irvine CA, US

A61F 9/008
A61F 9/009
A61B 90/20

A surgical laser capsulorhexis system includes a laser source, configured to generate a laser cutting beam; a beam guidance system, configured to guide the laser cutting beam from the laser source; a beam focuser, configured to guide the laser cutting beam from the laser source and to generate a focused laser cutting beam, the focused laser cutting beam having a two-dimensional beam pattern; a beam coupler, configured to redirect the focused laser cutting beam; and a patient interface lens, configured to guide the redirected focused laser cutting beam to a tissue surface of a procedure eye.