| 摘要 |
An add-drop filter, utilizing chiral couplers, that enables a new signal to be added at a particular vacuum wavelength lambd'k to a fiber optic line carrying n signal channels over a band of wavelengths encompassing lambd1 . . . lambdk-1, lambdk, lambdk+1 . . . lambdn, while an existing signal, lambdk, is simultaneously dropped from the signal group.
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