What Is a Fiber Array (FA) and What Makes FA Fabrication Difficult?
1. What Is a Fiber Array (FA)? Fiber Array (FA) generally refers to an optical fiber assembly in which multiple fibers (usually singlemode or multimode) are precisely arranged at a defined pitch and fixed onto a V-groove substrate. Common configurations include 4, 8, 12, 16 and 32 channels. Pitch (center-to-center spacing) is typically 127 μm…