Steven Michael Coleman

Title: Innovations of Steven Michael Coleman

Introduction

Steven Michael Coleman is an accomplished inventor based in Bedford, NH (US). He holds three patents that showcase his expertise in laser technology and thermal management systems. His work has significantly contributed to advancements in the field of semiconductor lasers and laser diode cooling solutions.

Latest Patents

One of his latest patents is for a narrow linewidth semiconductor laser. This innovative laser system includes a semiconductor laser with a laser driver coupled to it. The output of the semiconductor laser is optically connected to an optical splitter, which provides outputs to a first branch with a fiber coupled to a feedback reflector. This setup defines a passive secondary cavity for the semiconductor laser, while a second branch includes a back reflection reduction device. The roundtrip attenuation from the laser's output facet to the feedback reflector ranges from -30 dB to -80 dB. The laser driver ensures sufficient drive stability, maintaining frequency variation of the semiconductor laser to less than one free spectral range (FSR) of the secondary cavity. An output of the system is taken after the back reflection reduction device.

Another notable patent is for a microchannel cooler designed for high-efficiency laser diode heat extraction. This laser diode package consists of a laser diode, a cooler, and a metallization layer. The laser diode converts electrical energy into optical energy, while the cooler routes coolant from a cooling source through internal channels. The cooler is made up of several ceramic sheets fused together, along with a highly thermally-conductive sheet attached to the top ceramic sheet. The metallization layer is electrically coupled to the laser diode, facilitating the conduction of electrical energy.

Career Highlights

Throughout his career, Steven has worked with prominent companies such as Gooch and Housego Plc and Northrop Grumman Space & Missions Systems Corporation. His experience in these organizations has allowed him to refine his skills and contribute to significant projects in the field of laser technology.

Collaborations

Steven has collaborated with notable individuals in his field, including Edward Franklin Stephens, Iv, and Alexander Rosiewicz. These collaborations have further enriched his work and expanded his contributions to the industry.

Conclusion

Steven Michael Coleman is a distinguished inventor whose patents reflect his innovative spirit and technical expertise. His contributions to laser technology and thermal management systems continue to influence advancements in the field.