By the modulation of effective coupling length,CWC can accommodate wider multiplexing bandwidth than parallel straight waveguide coupler (SWC) in wavelength division multiplex (WDM).

• 同时由于等效耦合长度的调制作用使得弯曲波导耦合器在波分复用/解复用中比平行直波导耦合器具有更大的复用带宽;