We describe an optical system developed to form the basis of a 64 × 64 free-space optical matrix-matrix crossbar switch. The design and performance of each of the main optical components is discussed: lenses, diffractive optical elements, and polarizing beamsplitters, together with the optomechanical hardware design. For these components, throughput levels of −6.9 dB have been achieved, which is compatible with full system operation at 10−12 bit error rates at ≥270 Mbits s−1.
© 1996 Optical Society of America
C. P. Barrett, P. Blair, G. S. Buller, D. T. Neilson, B. Robertson, E. C. Smith, M. R. Taghizadeh, and A. C. Walker, "Components for the implementation of free-space optical crossbars," Appl. Opt. 35, 6934-6944 (1996)