公开(公告)号：US20230067875A1

公开(公告)日：2023-03-02

申请号：US17462734

申请日：2021-08-31

申请人： Lawrence Livermore National Security, LLC

发明人： Tiziana C. BOND ,  Sara Elizabeth HARRISON ,  Catherine E. REINHARDT ,  Payal Kamlesh SINGH ,  Victor V. KHITROV

IPC分类号： G02B6/255 ,  G02B6/36 ,  C03C25/68

摘要： The present disclosure relates to a method of forming a tapered optical fiber, where the optical fiber has a cladding encasing a core and has an initial outer diameter. The method involves applying opposing forces to spaced apart sections of the optical fiber. The spaced apart sections define a length portion representing a waist region. While applying the opposing forces, simultaneously applying heat to the waist region to gradually produce a taper of the optical fiber within the waist region. The taper has a first diameter at a midpoint of the waist region which is less than the initial outer diameter. An etch operation is then performed by chemically etching at least a subportion of the waist region of the optical fiber to reduce the subportion to a second diameter which is less than the first diameter.