Abstract

Steering accuracy is limited by the quantized phase modulation values and the number of phase pixels for spatial light modulators (SLMs). Conventional methods of beam steering lack optimum precision. In this letter, a beam steering approach based on horizontally moving phase steps is proposed. Compared with the conventional methods, this novel method is able to reduce the maximum normalized steering error in SLM significantly by a factor proportional to the number of pixels. In addition, steering errors of high steering angles can be drastically reduced by a factor proportional to the product of the number of pixels and the quantized phase levels; the number of high-precision steering angles increases with the number of pixels or the quantized phase levels increasing.

© 2010 Chinese Optics Letters

PDF Article

References

You do not have subscription access to this journal. Citation lists with outbound citation links are available to subscribers only. You may subscribe either as an OSA member, or as an authorized user of your institution.

Contact your librarian or system administrator
or
Login to access OSA Member Subscription

Cited By

You do not have subscription access to this journal. Cited by links are available to subscribers only. You may subscribe either as an OSA member, or as an authorized user of your institution.

Contact your librarian or system administrator
or
Login to access OSA Member Subscription