R. Hess et al., SIMULTANEOUS ALL-OPTICAL ADD AND DROP MULTIPLEXING OF 40GBIT S OTDM SIGNALS USING MONOLITHICALLY INTEGRATED MACH-ZEHNDER INTERFEROMETER/, Electronics Letters, 34(6), 1998, pp. 579-580
A monolithically integrated semiconductor optical amplifier based Mach
-Zehnder interferometer has been used to demonstrate for the first tim
e simultaneous all-optical add/drop operations for 40 Gbit/s OTDM sign
als. The penalty for the add operation is 1.3 dB.