Erwin R Wechsler

Title: **Innovations by Erwin R. Wechsler in Laser Technology**

Introduction

Erwin R. Wechsler, based in La Crescenta, California, is an accomplished inventor known for his significant contributions to laser technology. With a total of two patents under his name, his innovations have transformed the way laser diodes operate, particularly in environments where temperature fluctuations are prevalent.

Latest Patents

Two of Wechsler's latest patents showcase his ingenuity in enhancing laser diode functionality:

1. **Data-insensitive laser diode power control** - This patent describes a laser diode equipped with a feedback system that effectively minimizes the influence of laser junction temperature on the optical output power. The feedback system generates a signal by comparing an averaged pixel information train with the averaged optical output power from the laser's back photodiode. By monitoring fluctuations in temperature, this invention allows for precise control of the laser diode's output power, thus improving its performance and reliability in varying conditions.

2. **Adaptive laser diode driver circuit for laser scanners** - This invention is aimed at ensuring continuous calibration of laser output power in laser scanners. It incorporates a video signal containing a test segment that allows for measurement during two stages. The measurements taken help adjust the bias current and gain based on reference points. This ensures that despite temperature changes or aging, the laser power remains consistently calibrated, maximizing operational efficiency.

Career Highlights

Wechsler has made substantial contributions to his field, primarily through his work at Xerox Corporation. His innovative approaches have significantly impacted how laser technology is utilized in various applications, enhancing the performance and longevity of laser-driven devices.

Collaborations

Throughout his career, Wechsler has worked alongside talented professionals, including his coworker Jean-Michel Guerin. Together, they have contributed to advancements in laser technology and development, driving innovation within their organization.

Conclusion

Erwin R. Wechsler's work epitomizes the spirit of innovation in laser technology. Through his patented inventions, he has substantially improved the reliability and efficiency of laser diodes, demonstrating the vital role of inventors in the advancement of technology. His contributions continue to influence the field, showcasing the importance of ongoing research and development in turning theoretical concepts into practical solutions.