17937071. OPTICAL DEVICE HAVING UNIDIRECTIONAL MICRORING RESONATOR LASER CAPABLE OF SINGLE-MODE OPERATION simplified abstract (HEWLETT PACKARD ENTERPRISE DEVELOPMENT LP)

OPTICAL DEVICE HAVING UNIDIRECTIONAL MICRORING RESONATOR LASER CAPABLE OF SINGLE-MODE OPERATION

Organization Name

HEWLETT PACKARD ENTERPRISE DEVELOPMENT LP

Inventor(s)

Stanley Cheung of Milpitas CA (US)

Wayne Victor Sorin of Milpitas CA (US)

Yuan Yuan of Milpitas CA (US)

Raymond G. Beausoleil of Milpitas CA (US)

Di Liang of Santa Barbara CA (US)

OPTICAL DEVICE HAVING UNIDIRECTIONAL MICRORING RESONATOR LASER CAPABLE OF SINGLE-MODE OPERATION - A simplified explanation of the abstract

This abstract first appeared for US patent application 17937071 titled 'OPTICAL DEVICE HAVING UNIDIRECTIONAL MICRORING RESONATOR LASER CAPABLE OF SINGLE-MODE OPERATION

Simplified Explanation

The optical device described in the patent application includes a microring resonator (MRR) laser with a frequency-dependent filter and a reflector to enhance unidirectionality of optical signals.

• The first MRR laser has a resonant frequency and free spectral range (FSR) greater than the channel spacing of the device.
• A frequency-dependent filter is formed along a portion of the MRR laser via a common bus waveguide to attenuate frequencies different from the resonant frequency.
• The length of the common bus waveguide is chosen to achieve a second FSR equal to the channel spacing for single-mode operation.
• A reflector is formed at one end of the common bus waveguide to enhance unidirectionality of optical signals within the MRR laser.

Potential Applications

The technology described in the patent application could be applied in:

• Optical communication systems
• Sensing applications
• Quantum computing

Problems Solved

The technology addresses the following issues:

• Frequency interference in optical devices
• Achieving single-mode operation
• Enhancing unidirectionality of optical signals

Benefits

The benefits of this technology include:

• Improved signal quality
• Enhanced device performance
• Increased efficiency in optical systems

Potential Commercial Applications

The technology could find commercial applications in:

• Telecommunications industry
• Biomedical imaging
• Data centers

Possible Prior Art

One possible prior art for this technology could be:

• Research on microring resonator lasers and frequency-dependent filters in optical devices.

How does this technology compare to existing optical devices in terms of performance and efficiency?

The article does not provide a direct comparison with existing optical devices in terms of performance and efficiency.

What are the potential limitations or challenges in implementing this technology on a larger scale?

The article does not address potential limitations or challenges in implementing this technology on a larger scale.

Original Abstract Submitted

Examples described herein relate to an optical device. The optical device includes a first microring resonator (MRR) laser having a first resonant frequency and a first free spectral range (FSR). The first FSR is greater than a channel spacing of the optical device. Further, the optical device includes a first frequency-dependent filter formed along a portion of the first MRR laser via a common bus waveguide to attenuate one or more frequencies different from the first resonant frequency. A length of the common bus waveguide is chosen to achieve a second FSR of the common bus waveguide to be substantially equal to the channel spacing to enable a single-mode operation for the optical device. Moreover, the optical device includes a first reflector formed at a first end of the common bus waveguide to enhance a unidirectionality of optical signal within the first MRR laser.