We present a novel method for all-optical add-drop multiplexing having regenerative capability for 40-Gb/s optical time-division multiplexed (OTDM) data using a semiconductor optical amplifier (SOA) based, monolithic Mach-Zehnder interferometer (MZI). Simultaneous dropping of one 10-Gb/s channel out of 40-Gb/s OTDM data and perfect clearing of the corresponding time slot in the remaining 3 x 10 Gb/s data stream is demonstrated. Bit-error-rate measurements show a low penalty of 2 dB for each 10 Gb/s channel. No extra penalty was observed introducing a 10-Gb/s add channel through the device into the cleared time slot.
- add-drop multiplexing
- optical switches
- optical time division multiplexing
Fischer, S., Dülk, M., Gamper, E., Vogt, W., Hunziker, W., Gini, E., Melchior, H., Buxens, A. A., Poulsen, H. N., & Clausen, A. (2000). All-Optical Regenerative OTDM Add-Drop Multiplexing at 40 Gb/s using Monolithic InP Mach-Zehnder Interferometer. I E E E Photonics Technology Letters, 12(3), 335-337. https://doi.org/10.1109/68.826932