公开(公告)号：US20200209475A1

公开(公告)日：2020-07-02

申请号：US16286556

申请日：2019-02-26

Applicant: Sterlite Technologies Limited

Inventor： Pramod Watekar ,  Annesha Maity ,  Manoj Mittal ,  Sandeep Gaikwad ,  Sham Nagarkar ,  Bhalchandra Pathak ,  Sathis Ram

IPC: G02B6/13 ,  G02B6/02

Abstract: The present disclosure provides a method for modification of surface of an initial optical fiber preform. The initial optical fiber preform is manufactured using at least one preform manufacturing process. The surface of the initial optical fiber preform is treated with 50-70 liters of chlorine per square meter of the surface of the initial optical fiber preform. The surface of the initial optical fiber preform is flame polished using a flame polishing module. The treatment of the surface of the initial optical fiber preform with chlorine and flame polishing of the surface of the initial optical fiber preform collectively converts the initial optical fiber preform into a modified optical fiber preform.

公开(公告)号：US20200209469A1

公开(公告)日：2020-07-02

申请号：US16286517

申请日：2019-02-26

Applicant: Sterlite Technologies Limited

Inventor： Pramod Watekar ,  Annesha Maity ,  Manoj Mittal ,  Sandeep Gaikwad ,  Sham Nagarkar ,  Bhalchandra Pathak ,  Sathis Ram

IPC: G02B6/036 ,  G01D5/353

Abstract: The present disclosure provides an optical fiber. The optical fiber includes a core. The core has high compressive stress. The compressive stress of the core is in a range of about 20 to 60 MPa. The optical fiber includes a cladding. The cladding is divided into a first cladding layer and a second cladding layer. The second cladding layer has a high residual stress. The high residual stress of the second cladding layer is in a range of about 20 to 60 MPa. The optical fiber enables reduction of particle related breaks. Further, the optical fiber has elevated LLT strength. The LLT strength is about 6 Kg. The optical fiber has high proof test yield. Furthermore, the optical fiber is highly sensitive to micro-bending of the optical fiber.