18244752. Laser Architectures Using Quantum Well Intermixing Techniques simplified abstract (Apple Inc.)

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Laser Architectures Using Quantum Well Intermixing Techniques

Organization Name

Apple Inc.

Inventor(s)

Alfredo Bismuto of Sunnyvale CA (US)

Mark Alan Arbore of Los Altos CA (US)

Ross M. Audet of Menlo Park CA (US)

Laser Architectures Using Quantum Well Intermixing Techniques - A simplified explanation of the abstract

This abstract first appeared for US patent application 18244752 titled 'Laser Architectures Using Quantum Well Intermixing Techniques

Simplified Explanation

The abstract describes a laser chip with multiple stripes that can emit light across a wide range of wavelengths by shifting the optical gain profile of each laser stripe using an intermixing process.

  • Laser chip with multiple stripes:
 - The laser chip includes a plurality of stripes that can emit light with different ranges of wavelengths.
 - Each laser stripe can have its optical gain profile shifted relative to its neighboring laser stripe.
  • Shifting optical gain profile:
 - The optical gain profile of a laser stripe can be shifted using an intermixing process.
 - Different regions of a given laser stripe can have different intermixing amounts.
  • Wide range of emitted light:
 - The laser chip can emit light across a wide range of wavelengths due to the shifted optical gain profiles of the laser stripes.

Potential Applications

This technology can be used in: - Telecommunications for wavelength division multiplexing. - Medical devices for precise laser treatments. - Spectroscopy for analyzing different materials.

Problems Solved

- Traditional laser chips emit light at a fixed wavelength, limiting their applications. - Producing multiple laser stripes on the same chip from the same wafer was challenging.

Benefits

- Versatile laser chip emitting light across a wide range of wavelengths. - Cost-effective production of multiple laser stripes on a single chip. - Enhanced performance in various applications due to different wavelength emissions.

Potential Commercial Applications

Optimizing Laser Chip for Wide Range Wavelength Emission: - This technology can be applied in the development of advanced laser systems for various industries.

Possible Prior Art

Prior art may include: - Laser chips with fixed optical gain profiles. - Techniques for growing single laser stripes on a chip without optical gain profile shifting.

Unanswered Questions

How does the intermixing process precisely shift the optical gain profile of each laser stripe?

The abstract mentions an intermixing process for shifting the optical gain profile, but the specific mechanism or methodology is not detailed. Further information on the intermixing process would provide clarity on this aspect.

What are the specific applications in telecommunications and medical devices that can benefit from this technology?

While the abstract mentions potential applications in telecommunications and medical devices, it does not elaborate on the specific benefits or advantages in these fields. Exploring the practical implications of this technology in these sectors would offer valuable insights.


Original Abstract Submitted

A laser chip including a plurality of stripes is disclosed, where a laser stripe can be grown with an initial optical gain profile, and its optical gain profile can be shifted by using an intermixing process. In this manner, multiple laser stripes can be formed on the same laser chip from the same epitaxial wafer, where at least one laser stripe can have an optical gain profile shifted relative to another laser stripe. For example, each laser stripe can have a shifted optical gain profile relative to its neighboring laser stripe, thereby each laser stripe can emit light with a different range of wavelengths. The laser chip can emit light across a wide range of wavelengths. Examples of the disclosure further includes different regions of a given laser stripe having different intermixing amounts.