en The Effect of Filtering on 40- and 100 Gb/s Optical Signal Bandwidth تخصصی Special پژوهشي Research Signal Bandwidth is an important indicator for verifying the quality of a received signal in the optical fiber communication. Different components like Wavelength Selective Switches and Optical Interleaver Units used in a Dense Wavelength Division Multiplexed network can decrease the operating bandwidth. This works studies the effect of narrowing of signal bandwidth on the performance of the system. Signal Bandwidth is an important indicator for verifying the quality of a received signal in the optical fiber communication. Different components like Wavelength Selective Switches and Optical Interleaver Units used in a Dense Wavelength Division Multiplexed network can decrease the operating bandwidth. This works studies the effect of narrowing of signal bandwidth on the performance of the system. Bandwidth, Filtering, 100 Gb/s DP-QPSK, 40 Gb/s DPSK Bandwidth, Filtering, 100 Gb/s DP-QPSK, 40 Gb/s DPSK 1081 1084 http://opsi.ir/browse.php?a_code=A-10-1-412&slc_lang=en&sid=1 Morad Khosravi Eghbal Morad Khosravi Eghbal moradeghbal@yahoo.com 10031947532846001391 10031947532846001391 Yes Chalmers University of Technology Chalmers University of Technology Henrik Åhlfeldt Henrik Åhlfeldt henrik.ahlfeldt@transmode.com 10031947532846001392 10031947532846001392 No Transmode Systems AB Transmode Systems AB