Inventor

LI YUAN P

US23 patents

⚠️ This page may combine multiple inventors who share the name “LI YUAN P”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.

LI YUAN P

LUCENT TECHNOLOGIES INC

Optical multiplexer/demultiplexer having a broadcast port

Dense waveguide division multiplexers implemented using a first stage fourier filter

Optical device having low insertion loss

Wavelength routing device having wide and flat passbands

Comb splitting system and method for a multichannel optical fiber communication network

Method and apparatus for reducing temperature-related spectrum shifts in optical devices

Monolithic optical waveguide filters based on Fourier expansion

Optical branching device integrated with tunable attenuators for system gain/loss equalization

Optimized waveguide structure

Athermal optical devices

Low-loss optical power splitter for high-definition waveguides

Optical add/drop multiplexer having complementary stages

Side-gap mode tapering for integrated optic waveguides

Method and system for generating a mask layout of an optical integrated circuit

Optical device having a temperature independent spectral response using nonplanar geometric distortion of a substrate

Waveguide grating router employing transmissive Echelle gratings

WAVESPLITTER TECHNOLOGIES INC

Optical components having reduced insertion loss

Polarization interleaver

Wide passband optical interleaver

AGERE SYST OPTOELECTRONICS

Optical add-drop multiplexer having an interferometer structure

Method and apparatus for wavelength-channel tracking and alignment within an optical communications system

AT & T CORP

Integrated optical devices utilizing magnetostrictively, electrostrictively or photostrictively induced stress

(unassigned)

Reconfigurable add-drop multiplexer for optical communications systems