Wave-front matching of the local oscillator beam and the signal beam is of vital importance in optical heterodyne efficiency. A method for aligning the local oscillator beam and the signal beam is described. Mixing efficiency is improved. One can directly observe the matching procedure on an oscilloscope.
No takes yet. Share an insight, caveat, or question.
Sun et al. (1992) studied this question.
Synapse has enriched 5 related papers. Consider them for comparative context: