High-performance 32-channel HDWDM multiplexer with 1-nm channel spacing and 0.7-nm bandwidth

摘要

Abstract: A high performance HDWDM multiplexer capable of combining 32 channels spaced 1 nm apart onto a monomode fiber is reported. A microlens array is utilized to give a channel bandwidth of 0.7 nm. The wavelength range is 1.5285 $mu@m to 1.5595 $mu@m, within the erbium fiber amplification range. The mean insertion loss over 32 channels is 6.7 dB, and the polarization sensitivity is less than 0.7 dB. A design for a more compact and lower loss device is also presented. !9