公开(公告)号：WO9800372A3

公开(公告)日：1998-02-26

申请号：PCT/US9709988

申请日：1997-06-09

Applicant: CORNING INC ,  BURKE GERALD E ,  TRUESDALE CARLTON M

Inventor： BURKE GERALD E ,  TRUESDALE CARLTON M

IPC: G02B6/00 ,  C03B37/014 ,  C03C3/076 ,  C03C13/04 ,  C03C

CPC classification number: C03B37/01413 ,  C03B37/01446 ,  C03B2201/42 ,  C03C13/045

Abstract: The present invention is directed to a process for forming a preform suitable for consolidation to a glass blank for producing an optical waveguide fiber. The preform comprises a core portion and an inner cladding layer surrounding the core portion and contains SiO2 and TiO2. A portion of the TiO2 in the preform is in a crystalline form that is predominantly rutile. In addition to SiO2 and TiO2, the preform contains an additive compound that is preferentially sacrificed instead of TiO2 when the preform is consolidated. The process includes oxidizing Si and Ti containing compounds as well as a precursor of the additive compound to form SiO2, TiO2, and the additive compound. The preform containing these materials is then formed. In addition, the preform can be converted to a glass blank by consolidation of the preform.

公开(公告)号：WO1998000372A2

公开(公告)日：1998-01-08

申请号：PCT/US1997009988

申请日：1997-06-09

Applicant: CORNING INCORPORATED ,  BURKE, Gerald, E. ,  TRUESDALE, Carlton, M.

Inventor： CORNING INCORPORATED

IPC: C03C00/00

CPC classification number: C03B37/01413 ,  C03B37/01446 ,  C03B2201/42 ,  C03C13/045

Abstract: The present invention is directed to a process for forming a preform suitable for consolidation to a glass blank for producing an optical waveguide fiber. The preform comprises a core portion and an inner cladding layer surrounding the core portion and contains SiO2 and TiO2. A portion of the TiO2 in the preform is in a crystalline form that is predominantly rutile. In addition to SiO2 and TiO2, the preform contains an additive compound that is preferentially sacrificed instead of TiO2 when the preform is consolidated. The process includes oxidizing Si and Ti containing compounds as well as a precursor of the additive compound to form SiO2, TiO2, and the additive compound. The preform containing these materials is then formed. In addition, the preform can be converted to a glass blank by consolidation of the preform.

Abstract translation: 本发明涉及一种用于形成适合于固化到用于制造光波导纤维的玻璃坯料的预成型件的方法。 预型件包括芯部分和围绕芯部分的内包层，并且包含SiO 2和TiO 2。 预成型体中的一部分TiO 2为主要为金红石的结晶形式。 除了SiO 2和TiO 2之外，预成型体还含有当预制件被固结时优先牺牲代替TiO 2的添加剂化合物。 该方法包括氧化含Si和Ti的化合物以及添加剂化合物的前体以形成SiO 2，TiO 2和添加剂化合物。 然后形成包含这些材料的预成型体。 此外，通过预成型件的固结，可以将预制件转化为玻璃坯料。