We demonstrate a novel tapped delay-line fiber-optic microwave filter composed of four-mode dispersion compensation fiber (DCF) and a light source. The optical delay line is realized by the DCF guided modes having different velocities. The free-spectral range of the filter can be controlled by tuning the incident light wavelength.
Bibliographical noteFunding Information:
Manuscript received December 9, 2002; revised March 11, 2003. This work was supported by the Ministry of Science and Technology of Korea through the National Laboratory Program. K.-H. Lee and W.-Y. Choi are with the Department of Electrical and Electronic Engineering, Yonsei University, Seoul 120-749, Korea (e-mail: firstname.lastname@example.org). S. Choi and K. Oh are with the Department of Information and Communications, Kwangju Institute of Science and Technology (K-JIST), Kwangju, Korea. Digital Object Identifier 10.1109/LPT.2003.813451
All Science Journal Classification (ASJC) codes
- Electronic, Optical and Magnetic Materials
- Atomic and Molecular Physics, and Optics
- Electrical and Electronic Engineering