18384506. OPTICAL MODULATOR, OPTICAL TRANSMITTER, AND BIASVOLTAGE ADJUSTMENT METHOD OF OPTICAL MODULATOR simplified abstract (NEC Corporation)

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OPTICAL MODULATOR, OPTICAL TRANSMITTER, AND BIASVOLTAGE ADJUSTMENT METHOD OF OPTICAL MODULATOR

Organization Name

NEC Corporation

Inventor(s)

Takanori Shimizu of Tokyo (JP)

OPTICAL MODULATOR, OPTICAL TRANSMITTER, AND BIASVOLTAGE ADJUSTMENT METHOD OF OPTICAL MODULATOR - A simplified explanation of the abstract

This abstract first appeared for US patent application 18384506 titled 'OPTICAL MODULATOR, OPTICAL TRANSMITTER, AND BIASVOLTAGE ADJUSTMENT METHOD OF OPTICAL MODULATOR

Simplified Explanation

The present invention relates to an optical modulator with the capability of adjusting bias voltages based on monitor signals from photodetectors. In a third Mach-Zehnder type optical modulator, first and second MZ optical modulators are provided on separate arms, each monitored by a photodetector that outputs a monitor signal. A bias voltage generation unit independently adjusts bias voltages provided to the MZ optical modulators based on the monitor signals.

  • Third Mach-Zehnder type optical modulator with first and second MZ optical modulators
  • Photodetectors monitoring output light from each MZ optical modulator
  • Bias voltage generation unit adjusting bias voltages based on monitor signals

Potential Applications

This technology can be applied in optical communication systems, optical signal processing, and optical sensing applications.

Problems Solved

This technology solves the problem of adjusting bias voltages in optical modulators with a simple signal measurement, improving overall performance and efficiency.

Benefits

The benefits of this technology include improved control over bias voltages, enhanced modulation capabilities, and increased flexibility in optical modulation systems.

Potential Commercial Applications

Potential commercial applications of this technology include telecommunications equipment, optical networking devices, and optical instrumentation.

Possible Prior Art

Prior art may include similar optical modulators with manual bias voltage adjustments or fixed bias voltage settings, lacking the capability to dynamically adjust bias voltages based on monitor signals.

Unanswered Questions

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

This article does not provide a direct comparison between this technology and existing optical modulators in terms of performance and efficiency. Further research and testing would be needed to make a comprehensive comparison.

What are the specific technical specifications and requirements for integrating this technology into existing optical systems?

This article does not detail the specific technical specifications and requirements for integrating this technology into existing optical systems. Additional information from the patent application or related documentation would be necessary to address this question thoroughly.


Original Abstract Submitted

An object is to provide an optical modulator capable of adjusting a bias voltage with a simple signal measurement. In a third Mach-Zehnder type optical modulator, a first MZ optical modulator is provided on one arm and a second MZ optical modulator is provided on the other arm. A first photodetector monitors a first output light from the first MZ optical modulator and output a first monitor signal. A second photodetector monitors a second output light from the second MZ optical modulator and output a second monitor signal. A third photodetector monitors a third output light from the third MZ optical modulator and output a third monitor signal. a bias voltage generation unit independently adjusts first to third bias voltages provided to the first to third MZ optical modulators based on the first to third monitor signals, respectively.