Failure Case Study for Optical Fiber Breaks in Metal Packages

✍ Scribed by Hirotoshi Nagata; Naoki Mitsugi; Kaori Shima

• Book ID: 102617686
• Publisher: Elsevier Science
• Year: 1999
• Tongue: English
• Weight: 358 KB
• Volume: 5
• Category: Article
• ISSN: 1068-5200
• DOI: 10.1006/ofte.1999.0286

✦ Synopsis

A possible cause for optical fiber breaks occurring in hermetically sealed metal packages is examined. Although the fiber itself is screened before use, the potential for fiber breakage still exists since the fiber is installed, slightly bent, in order to accommodate thermal expansion of the package. As a means of screening out devices with possible fiber defects, we propose incorporating into the standard screening process a low-temperature storage test in which thermal shrinkage of the package intensifies bending strain on the fiber, thereby accelerating the failure and identification of fragile devices.