| 摘要 |
<p>Disclosed is an optical tunable microwave filter using higher mode. The filter comprises a laser diode producing carrier signals; a modulator modulating the signals produced by the laser diode; a first mode converter being input power of the modulated signals by the modulator and dispersing the power of the input signals, namely the power of the signal with a mode (LP01) in a single mode fiber, into two modes (LP01, LP02) in a dispersion compensation fiber; a second mode converter being input two modes (LP01, LP02) signals having time delay through the first mode converter and converting the input modes (LP01, LP02) signals into a mode (LP01) existing in the single mode fiber; a receiver receiving the signals converted by the second mode converter.</p> |
