Semiconductor Optical Amplifier

Simple SummaryContent extracted from patent full text and abstract with AI.

This invention describes a semiconductor optical amplifier (SOA) where multiple elongated quantum dots are arranged in specific layers of the semiconductor material. The quantum dots are longer along one direction (the preferred or X direction) than they are perpendicular to it (Y direction), and the arrangement ensures that the direction of optical amplification (the light path) runs parallel to the shorter axis of the quantum dots. This alignment leads to significantly higher amplification efficiency due to optimized emission properties of the quantum dots.

Use CasesContent extracted from patent full text and abstract with AI.

• Telecommunications, for boosting optical signals in fiber optic networks
• Datacenters, to enhance signal quality over long distances
• Sensor systems requiring low-noise optical amplification
• Optical signal regeneration and repeaters in large network infrastructures
• Quantum communications where precise and efficient amplification of light is critical
• Scientific and medical equipment requiring high-precision optical amplification, such as spectroscopy or high-resolution imaging devices

BenefitsContent extracted from patent full text and abstract with AI.

• Greatly increased amplification performance compared to traditional SOAs
• Higher gain saturation power and increased maximum output
• Reduced recovery time, enabling support for higher frequency signals and data rates
• Improved efficiency due to the specific orientation and elongation of quantum dots, enabling better control of polarization and emission directionality
• Potential for lower noise and improved signal integrity, especially relevant for complex networked systems
• Fabrication methods allow precise engineering of the quantum dot properties and amplifier characteristics

Technical Classifications (CPCs)

Inventors & Applicants

Patent Abstract

The invention relates, inter alia, to an optical semiconductor amplifier (10), in which a plurality of quantum dots (QD) are arranged in at least one quantum dot layer (21-24) of a semiconductor element (11) of the semiconductor amplifier (10), wherein the semiconductor element (11) has a preferred direction (X) located in the quantum dot layer plane, and elongated quantum dots (QD) are present, each of which is longer in the said preferred direction (X) than in a transverse direction (Y) perpendicular thereto and is likewise located in the quantum dot layer plane. According to the invention, the beam amplification direction (SVR) of the semiconductor amplifier (10), which is defined by a fictitious connecting line (VL) between an input (A10) of the semiconductor amplifier (10) that serves for the irradiation of input radiation (Se), and an output (A10) of the semiconductor amplifier (10) that serves for outputting the amplified radiation (Sa), is arranged parallel, or at least approximately parallel, to the transverse direction (Y).