Raws li kev ua haujlwm nthwv dej ntawm lub kho qhov muag cais tawm, lub kho qhov muag cais tau muab faib ua ib qho ntawm lub qhov rais kho qhov muag thiab lub qhov rooj sib txuas ob tog sib cais.
Ntawm no, lub qhov rais hais txog kev ua haujlwm wavelength. Qhov muaj ib-qhov kho qhov muag splitter tsuas muaj ib qho ua haujlwm yoj, thaum lub ob-qhov rai kho qhov muag splitter muaj ob qho ua haujlwm wavelengths. Hauv dual-window optical splitter, yog tias koj siv multimode fiber, ces nws ua haujlwm wavelengths yog 850nm thiab 1310nm, yog tias koj siv tib hom fiber ntau, ces nws ua haujlwm wavelengths yog 1310nm thiab 1550nm.
