Space qualification issues in acousto-optic and electro-optic devices

Abstract

Satellite and space-based applications of photonic devices and systems require operational reliability in the harsh environment of space for extended periods of time. This in turn requires every component of the systems and their packaging to meet space qualifications. Acousto-and electro-optical devices form the major components of many current space based optical systems, which is the focus of this paper. The major space qualification issues are related to: mechanical stability, thermal effects and operation of the devices in the naturally occurring space radiation environment. This paper will discuss acousto-and electro-optic materials and devices with respect to their stability against mechanical vibrations, thermal cycling in operating and non-operating conditions and device responses to space ionizing and displacement radiation effects. Selection of suitable materials and packaging to meet space qualification criteria will also be discussed. Finally, a general roadmap for production and testing of acousto-and electro-optic devices will be discussed.

The Development and Demonstration of the Portable Acousto‐Optic Spectrometer for Astrobiology in Cave Environments

“…Hence, with broadband light as an input, orthogonally polarized, spectrally narrow beams are diffracted within the crystal and emerge at a small angle relative to the exit face of the crystal. The AOTF material, TeO 2 , is inherently radiation hard (Prasad et al., 2007 ; Trivedi et al., 2006 ). Furthermore, these devices have no moving parts, making them an attractive option for landed surface platforms.…”