Description

This module is one of four pertaining to manufacturing as a photonics-enabled technology. The modules pertaining to each technology can be used as a unit or independently, as long as
prerequisites have been met.

Upon completion of this module, you should be able to do the following:
• Define the terms elevation angle, azimuth angle, and radian. Draw and label diagrams
illustrating the rotation of an optical axis in elevation and in azimuth.
• Describe the basic elements of angle-tracking systems. Your description should include
an angle-sensitive receiver.
• Describe how angle measurements may be deduced from measurements of the lateral
displacement of the image at the focal plane of the objective lens in an angle-tracking
system.
• Describe, in terms similar to the text, the following types of position-sensitive detectors:
quadrant photodiode, silicon position sensor, and vidicon. Include a drawing of each
detector.
• Draw and label a diagram of a typical commercial alignment system and describe the
operation of the system. The components shown in your drawing should be similar to
those in the text.
• Given the necessary parameters for an angle tracking system, correctly perform
calculations related to angle tracking.
• Given the necessary parameters of a surface profiling system, correctly perform
calculations related to surface profiling.
• Given the necessary equipment, assemble and operate a laser angle-tracking receiver
employing a silicon position sensor and measure the angular displacement of a laser that
is mounted on a linear translator.