| 摘要 |
PROBLEM TO BE SOLVED: To make a bidirectional optical connection between arbitrary channels with high efficiency by using a mutually excitation type phase conjugate mirror. SOLUTION: First signal light beams 1 and 2 are inputted from individual channels ch1 and ch2 of a first signal light input part 5 to photorefractive crystal 7 and second signal light beams 1' and 2' having different polarized light components from the first signal light beams 1 and 2 are inputted from individual channels ch1 and ch2 of a second signal light input part 6, so that both the signal light beams cross each other. Intensity ratios of the first and second signal light beams 1 and 2, and 1' and 2' are within a conjugate mirror formable range where the mutual excitation type phase conjugate mirror 8 can be formed in a signal light crossing area between channels to be connected and outside the conjugate mirror formable range, i.e., where the mutual excitation type phase conjugate mirror 8 can not be formed between channels not be connected. First signal light and second signal light of channels to be connected are connected together through the mutual excitation type phase conjugate mirror 8. COPYRIGHT: (C)2006,JPO&NCIPI |
