17964289. Electroabsorption Modulated Laser simplified abstract (HUAWEI TECHNOLOGIES CO., LTD.)

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Electroabsorption Modulated Laser

Organization Name

HUAWEI TECHNOLOGIES CO., LTD.

Inventor(s)

Xin Chen of Ipswich (GB)

Electroabsorption Modulated Laser - A simplified explanation of the abstract

This abstract first appeared for US patent application 17964289 titled 'Electroabsorption Modulated Laser

Simplified Explanation

The abstract describes an electroabsorption modulated laser that includes an optical cavity and an active region. The optical cavity is defined by a semiconductor substrate and has a length between two faces. The active region allows for the injection of charge into the cavity and has different bandgap energies at different positions along the length of the cavity.

  • The electroabsorption modulated laser includes two modulator sections, each comprising a part of the active region.
  • The first modulator section extends from a first position to a second position, while the second modulator section extends from the second position to a third position.
  • The bandgap energy of the active region is higher at the first position compared to the second position.

Potential applications of this technology:

  • Telecommunications: The electroabsorption modulated laser can be used in optical communication systems for transmitting data over long distances.
  • Optical sensing: The laser's modulator sections can be utilized in various sensing applications, such as environmental monitoring or medical diagnostics.
  • Data storage: The laser's ability to modulate its output can be beneficial in optical data storage systems.

Problems solved by this technology:

  • Improved modulation efficiency: By having different bandgap energies at different positions along the active region, the laser can achieve more efficient modulation of its output.
  • Enhanced performance: The use of modulator sections allows for better control and manipulation of the laser's output, leading to improved performance in various applications.

Benefits of this technology:

  • Higher data transmission rates: The electroabsorption modulated laser can enable faster data transmission in telecommunications systems.
  • Increased sensitivity: The laser's modulator sections enhance its sensitivity in optical sensing applications, allowing for more accurate measurements.
  • Improved signal quality: The laser's ability to efficiently modulate its output results in higher signal quality and reliability in data storage systems.


Original Abstract Submitted

An electroabsorption modulated laser having a first face, a second face, an optical cavity and an active region, the optical cavity being defined by a semiconductor substrate and having a length extending between the first face and the second face, and the active region being configured for injection of charge into the cavity and having effective bandgap energies at respective distances along the length of the cavity, the electroabsorption modulated laser comprising a first modulator section extending between a first position and a second position and comprising a first part of the active region, and a second modulator section extending between the second position and a third position and comprising a second part of the active region, wherein the bandgap energy of the first part of the active region adjacent the first position is higher than the bandgap energy adjacent the second position.