Abstract

Monolithic arrays of optical switches based on the integration of GaAs vertical-cavity surface-emitting lasers (VCSELs) with heterojunction phototransistors (HPTs) form a flexible two-dimensional switching fabric that is useful for a variety of applications in parallel optical processing. VCSEL-based optical switches with alternatively non-latching or latching switching characteristics are readily integrated into two-dimensional arrays that can perform digital logic and information processing functions. 1 They have also been combined into more complex binary switch nodes that can spatially reconfigure and thus re-route the optical signal paths using bypassexchange operations/which form the basis for a multi-stage optical switching network.

© 1994 Optical Society of America