A photonic cross-connector comprising a cross-connect section with a receiving part including first distributor components receiving incoming super-channels. (w1-4; n1-4; e1-4; s1-4), each represented by a number of sub-channels (w1-w4; n1-n4; e1-e4; s1-s4), and at least two drop outputs (5d, 7d), each for dropping at least one drop super-channel (wl-4; e1-4), and comprising a transmitting part including combiner components receiving express signals from the receiving part and emitting outgoing WDM signals (W1-4; N1-4; E1-4; S1-4) and having at least two add-inputs (9a, 11a) for adding at least an add super-channel (E1-4; W1-4), the cross-connect further comprising a division-multiplex section, having inputs which are connected to the at least two drop outputs (5d, 7d) of the receiving part, with a cyclic filter comprising M filter inputs (2e, 2w) and N filter outputs (2a, 2b, 2c, 2d), wherein M is the number of drop outputs (5d, 7d), N is the number of sub-channels in each super-channel, and the cyclic filter is configured to receive at each of said filter inputs (2e, 2w) a drop super-channel (el-4; w1-4), to separate each of the drop super-channels (e1-4, w1-4) into sub-channels (e1, w3; e2, w4; e3, w1; e4, w2) and to emit each of said sub-channels (e1, w3; e2, w4; e3, w1; e4, w2) at a corresponding one of said N filter outputs (2a, 2b, 2c, 2d), wherein the distributions of frequencies of said sub-channels (e1, w3; e2, w4; e3, w1; e4, w2) at the N filter outputs (2a, 2b, 2c, 2d) for drop super-channels (el-4, wl-4) inputted at different filter inputs (2e, 2w) are cyclically shifted with respect to each other, such that sub-channels (e1, w3; e2, w4; e3, w1; e4, w2) belonging to different super-channels (e1-4, w1-4) and having same frequencies are emitted at different filter outputs (2a, 2b, 2c, 2d); a transponder arrangement with receivers, each receiving at least a sub-channel (e1, w3; e2, w4; e3, w1; e4, w2) from one of said filter outputs (2a - 2d) of the cyclic filter, wherein each receiver is tunable for extracting one sub-channel (e1 - e4; w1 - w4), and with transmitters, each outputting a sub-channel (E1 - E4; W1 - W4) fed to an optical combiner (29, 25) outputting said add super-channels (E1-4; W1-4) fed to at least two add inputs (11a, 9a) of said transmitting part of the cross-connect section, whereas each transmitter is tunable for generating a sub-channel (E1 - E4; W1 - W4) of an add super-channel (E1-4; W1-4). a division-multiplex section, having inputs which are connected to the at least two drop outputs (5d, 7d) of the receiving part, with a cyclic filter comprising M filter inputs (2e, 2w) and N filter outputs (2a, 2b, 2c, 2d), wherein M is the number of drop outputs (5d, 7d), N is the number of sub-channels in each super-channel, and the cyclic filter is configured to receive at each of said filter inputs (2e, 2w) a drop super-channel (el-4; w1-4), to separate each of the drop super-channels (e1-4, w1-4) into sub-channels (e1, w3; e2, w4; e3, w1; e4, w2) and to emit each of said sub-channels (e1, w3; e2, w4; e3, w1; e4, w2) at a corresponding one of said N filter outputs (2a, 2b, 2c, 2d), wherein the distributions of frequencies of said sub-channels (e1, w3; e2, w4; e3, w1; e4, w2) at the N filter outputs (2a, 2b, 2c, 2d) for drop super-channels (el-4, wl-4) inputted at different filter inputs (2e, 2w) are cyclically shifted with respect to each other, such that sub-channels (e1, w3; e2, w4; e3, w1; e4, w2) belonging to different super-channels (e1-4, w1-4) and having same frequencies are emitted at different filter outputs (2a, 2b, 2c, 2d); a transponder arrangement with receivers, each receiving at least a sub-channel (e1, w3; e2, w4; e3, w1; e4, w2) from one of said filter outputs (2a - 2d) of the cyclic filter, wherein each receiver is tunable for extracting one sub-channel (e1 - e4; w1 - w4), and with transmitters, each outputting a sub-channel (E1 - E4; W1 - W4) fed to an optical combiner (29, 25) outputting said add super-channels (E1-4; W1-4) fed to at least two add inputs (11a, 9a) of said transmitting part of the cross-connect section, whereas each transmitter is tunable for generating a sub-channel (E1 - E4; W1 - W4) of an add super-channel (E1-4; W1-4).