Method for wavelength control of silicon photonic external cavity tunable laser

Y Gao, JC Lo - US Patent 11,811,195, 2023 - Google Patents
(57) ABSTRACT A tunable solid state laser device are described comprising a
semiconductor based gain chip and a silicon photonic filter chip with tuning capability. The …

Bidirectional optical communication system employing hollow-core fiber

RM Jopson - US Patent 11,212,005, 2021 - Google Patents
(57) ABSTRACT A bidirectional optical communication system employing one or more
spans of hollow-core optical fiber. In at least some embodiments, the hollow-core optical …

Self-aligned spot size converter

M Sodagar, P Apiratikul - US Patent 11,360,263, 2022 - Google Patents
An optical device comprises a substrate, a waveguide dis posed on the substrate, and a spot
size converter (SSC) disposed on the substrate. The waveguide comprises a shoulder and a …

Method for wavelength control of silicon photonic external cavity tunable laser

Y Gao, JC Lo - US Patent 12,119,616, 2024 - Google Patents
A tunable solid state laser device are described comprising a semiconductor based gain
chip and a silicon photonic filter chip with tuning capability. The silicon photonic filter chip …

Multistage spot size converter in silicon photonics

M Sodagar, SB Krasulick, J Zyskind… - US Patent …, 2021 - Google Patents
(57) ABSTRACT A device is provided for optical mode spot size conversion to optically
couple a semiconductor waveguide with an optical fiber. The device includes a waveguide …