Acta Optica Sinica, Volume. 7, Issue 5, 421(1987)
Variational analysis of dual-channel dielectric directional couplers
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SHE SHOUXIAN, QIAO LI, WANG JINGYI. Variational analysis of dual-channel dielectric directional couplers[J]. Acta Optica Sinica, 1987, 7(5): 421