This inventor holds 1 USPTO granted patent. Top assignee: British Telecommunications Public Limited Company. Active years: 1999.
Company Filing History:
Years Active: 1999
Title: Anthony J Dann - Innovator in Semiconductor Laser Technology
Introduction
Anthony J Dann is a notable inventor based in Ipswich, GB. He has made significant contributions to the field of semiconductor lasers, particularly through his innovative patent work. His expertise and dedication to advancing technology have positioned him as a key figure in his industry.
Latest Patents
Anthony J Dann holds a patent for "Mirrors for Semiconductor Lasers." This patent describes a vertical cavity surface emitting laser (VCSEL) that includes a mirror composed of first and second layers. The first layers contain aluminum, arsenic, and antimony, while the second layers comprise gallium, phosphorus, and antimony. Both layers are lattice matched to the semiconductor material of the active zone. A VCSEL typically contains two mirrors, and it is preferable for both mirrors to be formed from the specified elements. Additionally, beryllium can be utilized to confer p-type conductivity on one mirror, while silicon can be used for n-type conductivity on the other. The active zone is ideally formed from semiconductors containing indium and gallium, along with phosphorus and arsenic. The active zone's lattice constant is substantially equal to that of indium phosphide, ensuring that both mirrors are lattice matched to this constant.
Career Highlights
Anthony J Dann is associated with British Telecommunications Public Limited Company, where he has contributed to various projects and innovations in telecommunications technology. His work has been instrumental in enhancing the performance and efficiency of semiconductor lasers.
Collaborations
Anthony has collaborated with Paul John Cannard, working together to push the boundaries of semiconductor technology and improve the applications of lasers in telecommunications.
Conclusion
Anthony J Dann's contributions to semiconductor laser technology through his innovative patents and collaborations highlight his importance in the field. His work continues to influence advancements in telecommunications and laser applications.