J. Liu et al., CASCADED ENERGY-OPTIMIZED LINEAR VOLUME HOLOGRAM ARRAY FOR 1-TO-MANY SURFACE-NORMAL EVEN FAN-OUTS, Optics and Laser Technology, 29(6), 1997, pp. 321-325
Optimization of fan-out energy distribution for substrate guided wave
optical interconnects with a surface-normal configuration is addressed
in this paper. Up to nine optimized waveguide holograms are independe
ntly fabricated on the same substrate, Energy fluctuation affected by
the deviation of the designed diffraction efficiency is theoretically
analysed. Using DuPont photopolymer film HRF-600X001-20, we demonstrat
e 1-to-5 and 1-to-9 surface-normal fan-out devices operating at 850 nm
. The output non-uniformities of +/- 4% and +/- 10% are experimentally
confirmed for the two devices, respectively. (C) 1998 Elsevier Scienc
e Ltd.