An intercomparison of optical disc birefringence measurements using commercial instrumentation found in manufacturing settings showed significant measurement variation. We discuss possible sources of variantion in these measurements, including changes in disc properties and coherence effects. We describe specific measurement errors related to deviations from circular input polarization in one class of polarimetric instruments. Efforts to mitigate measurement errors, such as the development of calibration artifacts, are discussed.
Proceedings Title: Proc., SPIE, Recent Advances in Metrology, Characterization, and Standards for Optical Digital Data Disks
Conference Dates: July 28-29, 1999
Conference Location: Denver, CO
Pub Type: Conferences
birefringence, metrology, optical disc, polarimetry, retardance