Chee Kuan Wong, 59Monterey Park, CA

2021038, Dec 9, 2021

Nov 6, 2019

17/287061

- Oakland CA, US
Chee Wei Wong - Los Angeles CA, US
Hao Liu - Los Angeles CA, US
Jinghui Yang - Los Angeles CA, US

The Regents of the University of California - Oakland CA

G01B 9/02
G02F 1/365
H01S 3/067
G01S 17/36
G01S 7/484

Systems and methods for soliton microcomb-based precision dimensional metrology via spectrally-resolved interferometry are described. In an embodiment, the system includes a dual-pumped soliton microcomb generator comprising a pump, a microresonator, and an auxiliary pump and that generates a single-soliton microcomb, an erbium-doped fiber amplifier that amplifies a C-band section of the soliton microcomb and a non-polarizing beam splitter that divides the soliton microcomb pulses into a reference arm pulse and a measurement arm pulse for an interferometer and recombines the reference arm pulse and the measurement arm pulse into a recombined beam upon their return.

2021006, Mar 4, 2021

Aug 30, 2018

16/643835

- Oakland CA, US
Shu-Wei Huang - Los Angeles CA, US
Chee Wei Wong - Los Angeles CA, US
Abhinav Kumar Vinod - Los Angeles CA, US

The Regents of the University of California - Oakland CA

G02B 6/293
H01P 7/06
H01P 11/00

Based on graphene heterostructure in chip-scale silicon nitride microresonators, optoelectronic control and modulation in frequency combs via group velocity dispersion modulation can be demonstrated. By tuning graphene Fermi level from 0.50 eV to 0.65 eV via electric-field gating, deterministic in-cavity group velocity dispersion control from anomalous (−62 fs/mm) to normal (+9 fs/mm) can be achieved with Q factor remaining high at 10. Consequently, both the primary comb lines and the full comb spectra can be controllable dynamically with the on/off switching of the Cherenkov radiation, the tuning of the primary comb lines from 2.3 THz to 7.2 THz, and the comb span control from zero comb lines to 781 phase-locked comb lines, directly via the DC voltage.

2019012, May 2, 2019

Dec 23, 2018

16/231545

- San Jose CA, US
Leo Chen - Diamond Bar CA, US
Tom Lee - Redondo Beach CA, US
Chee Wei Wong - Los Angeles CA, US
Yoo Seung Lee - Los Angeles CA, US

G02B 27/01
G02B 6/44
F21V 8/00
G06F 1/16
G06F 3/01
G02B 27/00
G02B 6/42

An integrated lens for wearable display devices is described. The integrated lens includes at least a lens, a protecting sheet, an optical waveguide integrated with the lens, and a clear sheet. The waveguide is smaller than the lens in size. The clear sheet is provided to supplement the waveguide to match the lens in size. The optical waveguide is sandwiched between the lens and the protecting sheet.