Sumitava De

Title: Innovations by Sumitava De in Optical Fiber Technology

Introduction

Sumitava De is a notable inventor based in Painted Post, NY (US). He has made significant contributions to the field of optical fiber technology, holding a total of 4 patents. His work focuses on enhancing the reliability and efficiency of optical fiber coating processes.

Latest Patents

One of his latest patents is an optical fiber coating die with reduced wetted length. This innovative apparatus provides increased gyre stability and reduced gyre strength, which leads to a more reliable coating application process during fiber drawing. The design includes a cone-only coating die with a conical entrance portion featuring a tapered wall angled at a half angle α, where 2° ≤ α ≤ 25°, and a cone height L of less than 2.2 mm. Additionally, it has a cylindrical portion with an inner diameter d, where 0.1 mm ≤ d ≤ 0.5 mm, and a cylindrical height L, where 0.05 mm ≤ L ≤ 1.25 mm. The apparatus also includes a guide die with an optical fiber exit, positioned adjacent to the cone-only coating die, ensuring a wetted length (L) between the optical fiber exit and the entrance of the cone-only coating die ranging from 1 mm to 5 mm. A holder maintains the fixed relationship between the cone-only coating die and the guide die, defining a coating chamber with an inner radius L from the optical fiber axis to the inner wall of the holder, which is from 3 mm to 10 mm.

Career Highlights

Sumitava De is currently employed at Corning Incorporated, a leading company in the field of glass and ceramics. His work at Corning has allowed him to develop and patent innovative technologies that enhance optical fiber manufacturing processes.

Collaborations

Throughout his career, Sumitava has collaborated with notable colleagues, including Robert Clark Moore and Douglas Gregg Neilson. These collaborations have contributed to the advancement of optical fiber technology and the successful development of his patents.

Conclusion

Sumitava De's contributions to optical fiber technology through his patents demonstrate his commitment to innovation in the field. His work continues to influence the industry and improve the reliability of optical fiber applications.