David Lawrence Rollins

Title: **David Lawrence Rollins: Innovator in Optical Systems**

Introduction

David Lawrence Rollins, a distinguished inventor based in Hawthorne, California, has significantly contributed to the field of optical communications. With an impressive portfolio of 19 patents, Rollins has been at the forefront of innovations that enhance the performance and capabilities of analog optical systems.

Latest Patents

Among his most recent patents are two notable inventions:

1. **Linearized Optical Link Using a Single Mach-Zehnder Modulator and Two Optical Carriers** - This invention offers an advanced analog optical system that provides an improved dynamic range and sensitivity compared to traditional systems. By employing a Mach-Zehnder modulator, the system operates with low bias to enhance sensitivity. An essential feature of this design is the use of two optical wavelengths that successfully cancel even-ordered distortion. Two distinct lasers are combined through a wavelength division multiplexer, or alternatively, a single laser producing two different wavelengths can be utilized. This setup effectively maximizes modulation depth and sensitivity while minimizing bias effects.

2. **Apparatus and Method for Combining Multiple Optical Beams in a Free-Space Optical Communications System** - This invention introduces a method for combining multiple optical beams into mode-scrambled optical signals. The apparatus utilizes several laser beam sources coupled with multimode optical fibers. This innovative design enables the aggregation of both similar and different wavelength optical beams, thereby increasing optical signal strength and creating wavelength division multiplexed signals.

Career Highlights

Rollins has made substantial contributions during his tenure at prominent companies such as TRW Limited and Northrop Grumman Systems Corporation. His work in these organizations has focused primarily on optical technologies, which has culminated in his extensive list of patents.

Collaborations

Throughout his career, Rollins has collaborated with renowned professionals in the field, including Lawrence J. Lembo and Richard A. Fields. Their combined expertise and insights have likely fueled innovative approaches in the development of optical systems.

Conclusion

David Lawrence Rollins stands out as a prolific inventor whose work has laid the groundwork for advancements in optical technologies. His patent portfolio reflects a commitment to improving the functionality and efficiency of optical systems, which will undoubtedly inspire future generations of innovators in the field.