The term tilt angle is used for FO connectors, but also for bar code scanning.
- If the FO connector is not precisely adjusted mechanically, it may " wobble" and thus tilt. light into the optical fiber changes the transmission properties. Even a slight tilt of a few degrees can cause attenuation of up to half a decibel. If offset is axial with respect to the axis of the optical fiber, then it is the axis offset.
- When scanning bar codes, the tilt angle is the deviation of the reading beam from the ideal reading line; which is the perpendicular to the bar code. Depending on the tilt angle, too much deviation from the ideal line will lead to an incorrect result.