Wavelength blocking filter with flexible data rates and channel spacing

作者：Ryf R^*; Su Y; Moller L; Chandrasekhar S; Liu X; Neilson DT; Giles CR

来源：Journal of Lightwave Technology, 2005, 23(1): 54-61.

DOI：10.1109/JLT.2004.840346

• gratings
• microelectromechanical devices
• optical filter
• optical switches

This paper presents a high-resolution (13.2 GHz) channel-blocking optical filter, suitable for use as a reconfigurable optical add/drop multiplexer (ROADM), which seamlessly supports data rates from 2.5 to 160 Gb/s. The filter consists of a linear array of 64 MEMS micromirrors and a high-dispersion echelle grating. The demonstrated device had an insertion loss of 9 dB, a loss ripple of 1.2 dB, and a group delay ripple of 15 ps. Data transmission through the device with various mixed data rate scenarios ranging from 2.5 to 160 Gb/s showed negligible penalty, except at 40 Gb/s where a maximum penalty of 1.5 dB was observed due to a phase coherence with the blocker filter ripple.

• 出版日期2005-1