18610957. WAVEGUIDE STRUCTURE simplified abstract (TAIWAN SEMICONDUCTOR MANUFACTURING COMPANY, LTD.)
Contents
WAVEGUIDE STRUCTURE
Organization Name
TAIWAN SEMICONDUCTOR MANUFACTURING COMPANY, LTD.
Inventor(s)
Chan-Hong Chern of Palo Alto CA (US)
WAVEGUIDE STRUCTURE - A simplified explanation of the abstract
This abstract first appeared for US patent application 18610957 titled 'WAVEGUIDE STRUCTURE
The optical phase-shifting device described in the patent application consists of a ribbed waveguide portion on an insulating layer, with a p-n or p-i-n junction extending longitudinally and having a specific height. Two slab portions are located on either side of the ribbed waveguide portion, with higher doping concentrations than the waveguide portion. The height of the slab portions increases with distance from the waveguide portion, with the height being smaller at the junction between the waveguide and slab portions. Contact portions are formed further away from the waveguide portion, with varying heights.
- Ribbed waveguide portion with p-n or p-i-n junction
- Slab portions with higher doping concentrations
- Height of slab portions increases with distance from waveguide portion
- Contact portions with varying heights
- Insulating layer separates components
Potential Applications: - Optical communication systems - Integrated photonics devices - Optical sensors
Problems Solved: - Precise phase shifting in optical devices - Enhanced optical signal processing - Improved optical communication efficiency
Benefits: - Increased accuracy in phase shifting - Enhanced performance of optical devices - Improved signal quality in optical systems
Commercial Applications: Title: Advanced Optical Phase-Shifting Device for High-Speed Communication Systems This technology can be utilized in telecommunications equipment, data centers, and fiber optic networks to improve signal processing and communication efficiency.
Questions about Optical Phase-Shifting Device: 1. How does the ribbed waveguide portion contribute to phase shifting in the device? 2. What are the advantages of having slab portions with higher doping concentrations in the optical phase-shifting device?
Original Abstract Submitted
An optical phase-shifting device includes a ribbed waveguide portion on an insulating layer, the waveguide portion having a p-n or p-i-n junction extending in a longitudinal direction and having a height. A pair of slab portions are disposed adjacent the waveguide portion, one on each side of the ribbed waveguide portion and on the insulation layer. The slab portion have higher doping concentrations than the respective doping concentrations in the ribbed waveguide portion. At least a portion of each slab portion has a height increasing with distance from the waveguide portion, with the slab height being smaller than that of the waveguide portion at the junction between the waveguide portion and slab portion. A pair of contact portions are formed adjacent the respective slab portion and further away from the waveguide portion. A portion of each contact portion can also have a height varying with distance from the waveguide portion.
