Susan P Craig

Title: Inventor Profile: Susan P. Craig

Introduction

Susan P. Craig is an innovative inventor hailing from Ipswich, Great Britain. She has made significant contributions to the field of optical technology and holds two notable patents. Her work focuses on enhancing the performance of optical fibres, particularly in applications such as fibre lasers and telecommunications.

Latest Patents

One of Susan's latest patents is for an **Optical Fibre with Fluorescent Additive**. This invention features a novel design where the lasing additive, such as Er.sup.3+, is concentrated in the center of the fibre’s core. The core is structured to include an inner region that contains the additive, while the outer region remains dopant-free. This specific design allows for a reduction in the pump threshold for lasers, thereby improving gain performance under a given pump power. The fibre is produced using the Modified Chemical Vapor Deposition (MCVD) method. Notably, the incorporation of Al.sub.2 O.sub.3 in the inner zone helps to reduce the loss of the dopant during the tube collapse process.

Additionally, she holds a patent for the **Preparation of Glass Fibre**, where rare earth elements such as Nd are integrated into optical glass fibres intended for telecommunications. This is achieved by evaporating a suitable salt, like NdCl.sub.3, from a specialized glass sponge into the gas stream used for depositing the core material. These sponges, which are made using MCVD, feature an outer impervious layer and an inner porous layer, with impregnation conducted through an alcoholic solution of the impregnant.

Career Highlights

Susan P. Craig is currently associated with the British Telecommunications Corporation, where she applies her expertise in optical fibre technology. Her innovative solutions have not only advanced the science of fibre optics but have also contributed significantly to telecommunications.

Collaborations

Throughout her career, Susan has worked alongside notable colleagues, including Benjamin J. Ainslie and Jonathan R. Armitage. Their collaborative efforts have further propelled advancements in the field of optics and telecommunications, validating the importance of teamwork in innovation.

Conclusion

Susan P. Craig exemplifies the spirit of innovation in the optical technology domain. Her inventive patents reflect her commitment to improving telecommunications through advanced optical fibre applications. With a solid background and collaborative spirit, she continues to push the boundaries of her field, paving the way for future advancements in technology.