Editing Wavelength-division multiplexing (section)

===List of DWDM Channels===

For DWDM the range between C21-C60 is the most common range, for Mux/Demux in 8, 16, 40 or 96 sizes.<ref>{{cite web
|url=https://www.flexoptix.net/en/dwdm-channels/ 
|title=Flexoptix GmbH CWDM / DWDM CHANNELS
|access-date=2022-07-22
}}</ref><ref>{{cite web
|url=https://community.fs.com/news/cwdmdwdm-itu-channels-guide.html
|title=FS DWDM/CWDM Wavelength ITU Channels Guide
|date=12 July 2018
|access-date=2022-07-22
}}</ref>

{| class="wikitable sortable mw-collapsible mw-collapsed" style="text-align:right; vertical-align:middle;"
|+ 100&nbsp;GHz ITU Channels
|- style="text-align:center;"
! style="text-align:right;" | Channel #
! Center frequency (THz)
! Wavelength (nm)
|-
| 1
| style="text-align:center;" | 190.1
| style="text-align:left;" | 1577.03
|-
| 2
| style="text-align:center;" | 190.2
| style="text-align:left;" | 1576.2
|-
| 3
| style="text-align:center;" | 190.3
| style="text-align:left;" | 1575.37
|-
| 4
| style="text-align:center;" | 190.4
| style="text-align:left;" | 1574.54
|-
| 5
| style="text-align:center;" | 190.5
| style="text-align:left;" | 1573.71
|-
| 6
| style="text-align:center;" | 190.6
| style="text-align:left;" | 1572.89
|-
| 7
| style="text-align:center;" | 190.7
| style="text-align:left;" | 1572.06
|-
| 8
| style="text-align:center;" | 190.8
| style="text-align:left;" | 1571.24
|-
| 9
| style="text-align:center;" | 190.9
| style="text-align:left;" | 1570.42
|-
| 10
| style="text-align:center;" | 191.0
| style="text-align:left;" | 1569.59
|-
| 11
| style="text-align:center;" | 191.1
| style="text-align:left;" | 1568.77
|-
| 12
| style="text-align:center;" | 191.2
| style="text-align:left;" | 1567.95
|-
| 13
| style="text-align:center;" | 191.3
| style="text-align:left;" | 1567.13
|-
| 14
| style="text-align:center;" | 191.4
| style="text-align:left;" | 1566.31
|-
| 15
| style="text-align:center;" | 191.5
| style="text-align:left;" | 1565.5
|-
| 16
| style="text-align:center;" | 191.6
| style="text-align:left;" | 1564.68
|-
| 17
| style="text-align:center;" | 191.7
| style="text-align:left;" | 1563.86
|-
| 18
| style="text-align:center;" | 191.8
| style="text-align:left;" | 1563.05
|-
| 19
| style="text-align:center;" | 191.9
| style="text-align:left;" | 1562.23
|-
| 20
| style="text-align:center;" | 192.0
| style="text-align:left;" | 1561.41
|-
| 21
| style="text-align:center;" {{active|192.1}} 
| style="text-align:left;" | 1560.61
|-
| 22
| style="text-align:center;" {{active|192.2}} 
| style="text-align:left;" | 1559.79
|-
| 23
| style="text-align:center;" {{active|192.3}} 
| style="text-align:left;" | 1558.98
|-
| 24
| style="text-align:center;" {{active|192.4}} 
| style="text-align:left;" | 1558.17
|-
| 25
| style="text-align:center;" {{active|192.5}} 
| style="text-align:left;" | 1557.36
|-
| 26
| style="text-align:center;" {{active|192.6}} 
| style="text-align:left;" | 1556.55
|-
| 27
| style="text-align:center;" {{active|192.7}} 
| style="text-align:left;" | 1555.75
|-
| 28
| style="text-align:center;" {{active|192.8}} 
| style="text-align:left;" | 1554.94
|-
| 29
| style="text-align:center;" {{active|192.9}} 
| style="text-align:left;" | 1554.13
|-
| 30
| style="text-align:center;" {{active|193.0}} 
| style="text-align:left;" | 1553.33
|-
| 31
| style="text-align:center;" {{active|193.1}} 
| style="text-align:left;" | 1552.52
|-
| 32
| style="text-align:center;" {{active|193.2}} 
| style="text-align:left;" | 1551.72
|-
| 33
| style="text-align:center;" {{active|193.3}}
| style="text-align:left;" | 1550.92
|-
| 34
| style="text-align:center;" {{active|193.4}}
| style="text-align:left;" | 1550.12
|-
| 35
| style="text-align:center;" {{active|193.5}}
| style="text-align:left;" | 1549.32
|-
| 36
| style="text-align:center;" {{active|193.6}}
| style="text-align:left;" | 1548.51
|-
| 37
| style="text-align:center;" {{active|193.7}}
| style="text-align:left;" | 1547.72
|-
| 38
| style="text-align:center;" {{active|193.8}}
| style="text-align:left;" | 1546.92
|-
| 39
| style="text-align:center;" {{active|193.9}}
| style="text-align:left;" | 1546.12
|-
| 40
| style="text-align:center;" {{active|194.0}}
| style="text-align:left;" | 1545.32
|-
| 41
| style="text-align:center;" {{active|194.1}}
| style="text-align:left;" | 1544.53
|-
| 42
| style="text-align:center;" {{active|194.2}}
| style="text-align:left;" | 1543.73
|-
| 43
| style="text-align:center;" {{active|194.3}}
| style="text-align:left;" | 1542.94
|-
| 44
| style="text-align:center;" {{active|194.4}}
| style="text-align:left;" | 1542.14
|-
| 45
| style="text-align:center;" {{active|194.5}}
| style="text-align:left;" | 1541.35
|-
| 46
| style="text-align:center;" {{active|194.6}}
| style="text-align:left;" | 1540.56
|-
| 47
| style="text-align:center;" {{active|194.7}}
| style="text-align:left;" | 1539.77
|-
| 48
| style="text-align:center;" {{active|194.8}}
| style="text-align:left;" | 1538.98
|-
| 49
| style="text-align:center;" {{active|194.9}}
| style="text-align:left;" | 1538.19
|-
| 50
| style="text-align:center;" {{active|195.0}}
| style="text-align:left;" | 1537.4
|-
| 51
| style="text-align:center;" {{active|195.1}}
| style="text-align:left;" | 1536.61
|-
| 52
| style="text-align:center;" {{active|195.2}}
| style="text-align:left;" | 1535.82
|-
| 53
| style="text-align:center;" {{active|195.3}}
| style="text-align:left;" | 1535.04
|-
| 54
| style="text-align:center;" {{active|195.4}}
| style="text-align:left;" | 1534.25
|-
| 55
| style="text-align:center;" {{active|195.5}}
| style="text-align:left;" | 1533.47
|-
| 56
| style="text-align:center;" {{active|195.6}}
| style="text-align:left;" | 1532.68
|-
| 57
| style="text-align:center;" {{active|195.7}}
| style="text-align:left;" | 1531.9
|-
| 58
| style="text-align:center;" {{active|195.8}}
| style="text-align:left;" | 1531.12
|-
| 59
| style="text-align:center;" {{active|195.9}}
| style="text-align:left;" | 1530.33
|-
| 60
| style="text-align:center;" {{active|196.0}}
| style="text-align:left;" | 1529.55
|-
| 61
| style="text-align:center;" | 196.1
| style="text-align:left;" | 1528.77
|-
| 62
| style="text-align:center;" | 196.2
| style="text-align:left;" | 1527.99
|-
| 63
| style="text-align:center;" | 196.3
| style="text-align:left;" | 1527.22
|-
| 64
| style="text-align:center;" | 196.4
| style="text-align:left;" | 1526.44
|-
| 65
| style="text-align:center;" | 196.5
| style="text-align:left;" | 1525.66
|-
| 66
| style="text-align:center;" | 196.6
| style="text-align:left;" | 1524.89
|-
| 67
| style="text-align:center;" | 196.7
| style="text-align:left;" | 1524.11
|-
| 68
| style="text-align:center;" | 196.8
| style="text-align:left;" | 1523.34
|-
| 69
| style="text-align:center;" | 196.9
| style="text-align:left;" | 1522.56
|-
| 70
| style="text-align:center;" | 197.0
| style="text-align:left;" | 1521.79
|-
| 71
| style="text-align:center;" | 197.1
| style="text-align:left;" | 1521.02
|-
| 72
| style="text-align:center;" | 197.2
| style="text-align:left;" | 1520.25
|}

{| class="wikitable sortable mw-collapsible mw-collapsed" style="text-align:right; vertical-align:middle;"
|+ 50&nbsp;GHz ITU Channels
|- style="text-align:center;"
! Channel #
! Center frequency (THz)
! Wavelength (nm)
|-
| style="text-align:right;" | 1
| 190.1
| 1577.03
|-
| style="text-align:right;" | 1.5
| 190.15
| 1576.61
|-
| style="text-align:right;" | 2
| 190.2
| 1576.2
|-
| style="text-align:right;" | 2.5
| 190.25
| 1575.78
|-
| style="text-align:right;" | 3
| 190.3
| 1575.37
|-
| style="text-align:right;" | 3.5
| 190.35
| 1574.95
|-
| style="text-align:right;" | 4
| 190.4
| 1574.54
|-
| style="text-align:right;" | 4.5
| 190.45
| 1574.13
|-
| style="text-align:right;" | 5
| 190.5
| 1573.71
|-
| style="text-align:right;" | 5.5
| 190.55
| 1573.3
|-
| style="text-align:right;" | 6
| 190.6
| 1572.89
|-
| style="text-align:right;" | 6.5
| 190.65
| 1572.48
|-
| style="text-align:right;" | 7
| 190.7
| 1572.06
|-
| style="text-align:right;" | 7.5
| 190.75
| 1571.65
|-
| style="text-align:right;" | 8
| 190.8
| 1571.24
|-
| style="text-align:right;" | 8.5
| 190.85
| 1570.83
|-
| style="text-align:right;" | 9
| 190.9
| 1570.42
|-
| style="text-align:right;" | 9.5
| 190.95
| 1570.01
|-
| style="text-align:right;" | 10
| 191
| 1569.59
|-
| style="text-align:right;" | 10.5
| 191.05
| 1569.18
|-
| style="text-align:right;" | 11
| 191.1
| 1568.77
|-
| style="text-align:right;" | 11.5
| 191.15
| 1568.36
|-
| style="text-align:right;" | 12
| 191.2
| 1567.95
|-
| style="text-align:right;" | 12.5
| 191.25
| 1567.54
|-
| style="text-align:right;" | 13
| 191.3
| 1567.13
|-
| style="text-align:right;" | 13.5
| 191.35
| 1566.72
|-
| style="text-align:right;" | 14
| 191.4
| 1566.31
|-
| style="text-align:right;" | 14.5
| 191.45
| 1565.9
|-
| style="text-align:right;" | 15
| 191.5
| 1565.5
|-
| style="text-align:right;" | 15.5
| 191.55
| 1565.09
|-
| style="text-align:right;" | 16
| 191.6
| 1564.68
|-
| style="text-align:right;" | 16.5
| 191.65
| 1564.27
|-
| style="text-align:right;" | 17
| 191.7
| 1563.86
|-
| style="text-align:right;" | 17.5
| 191.75
| 1563.45
|-
| style="text-align:right;" | 18
| 191.8
| 1563.05
|-
| style="text-align:right;" | 18.5
| 191.85
| 1562.64
|-
| style="text-align:right;" | 19
| 191.9
| 1562.23
|-
| style="text-align:right;" | 19.5
| 191.95
| 1561.83
|-
| style="text-align:right;" | 20
| 192
| 1561.42
|-
| style="text-align:right;" | 20.5
| 192.05
| 1561.01
|-
| style="text-align:right;" | 21
| 192.1
| 1560.61
|-
| style="text-align:right;" | 21.5
| 192.15
| 1560.2
|-
| style="text-align:right;" | 22
| 192.2
| 1559.79
|-
| style="text-align:right;" | 22.5
| 192.25
| 1559.39
|-
| style="text-align:right;" | 23
| 192.3
| 1558.98
|-
| style="text-align:right;" | 23.5
| 192.35
| 1558.58
|-
| style="text-align:right;" | 24
| 192.4
| 1558.17
|-
| style="text-align:right;" | 24.5
| 192.45
| 1557.77
|-
| style="text-align:right;" | 25
| 192.5
| 1557.36
|-
| style="text-align:right;" | 25.5
| 192.55
| 1556.96
|-
| style="text-align:right;" | 26
| 192.6
| 1556.56
|-
| style="text-align:right;" | 26.5
| 192.65
| 1556.15
|-
| style="text-align:right;" | 27
| 192.7
| 1555.75
|-
| style="text-align:right;" | 27.5
| 192.75
| 1555.34
|-
| style="text-align:right;" | 28
| 192.8
| 1554.94
|-
| style="text-align:right;" | 28.5
| 192.85
| 1554.54
|-
| style="text-align:right;" | 29
| 192.9
| 1554.13
|-
| style="text-align:right;" | 29.5
| 192.95
| 1553.73
|-
| style="text-align:right;" | 30
| 193
| 1553.33
|-
| style="text-align:right;" | 30.5
| 193.05
| 1552.93
|-
| style="text-align:right;" | 31
| 193.1
| 1552.52
|-
| style="text-align:right;" | 31.5
| 193.15
| 1552.12
|-
| style="text-align:right;" | 32
| 193.2
| 1551.72
|-
| style="text-align:right;" | 32.5
| 193.25
| 1551.32
|-
| style="text-align:right;" | 33
| 193.3
| 1550.92
|-
| style="text-align:right;" | 33.5
| 193.35
| 1550.52
|-
| style="text-align:right;" | 34
| 193.4
| 1550.12
|-
| style="text-align:right;" | 34.5
| 193.45
| 1549.72
|-
| style="text-align:right;" | 35
| 193.5
| 1549.32
|-
| style="text-align:right;" | 35.5
| 193.55
| 1548.91
|-
| style="text-align:right;" | 36
| 193.6
| 1548.52
|-
| style="text-align:right;" | 36.5
| 193.65
| 1548.11
|-
| style="text-align:right;" | 37
| 193.7
| 1547.72
|-
| style="text-align:right;" | 37.5
| 193.75
| 1547.32
|-
| style="text-align:right;" | 38
| 193.8
| 1546.92
|-
| style="text-align:right;" | 38.5
| 193.85
| 1546,52
|-
| style="text-align:right;" | 39
| 193.9
| 1546,12
|-
| style="text-align:right;" | 39.5
| 193.95
| 1545.72
|-
| style="text-align:right;" | 40
| 194
| 1545.32
|-
| style="text-align:right;" | 40.5
| 194.05
| 1544.92
|-
| style="text-align:right;" | 41
| 194.1
| 1544.53
|-
| style="text-align:right;" | 41.5
| 194.15
| 1544.13
|-
| style="text-align:right;" | 42
| 194.2
| 1543.73
|-
| style="text-align:right;" | 42.5
| 194.25
| 1543.33
|-
| style="text-align:right;" | 43
| 194.3
| 1542.94
|-
| style="text-align:right;" | 43.5
| 194.35
| 1542.54
|-
| style="text-align:right;" | 44
| 194.4
| 1542.14
|-
| style="text-align:right;" | 44.5
| 194.45
| 1541.75
|-
| style="text-align:right;" | 45
| 194.5
| 1541.35
|-
| style="text-align:right;" | 45.5
| 194.55
| 1540.95
|-
| style="text-align:right;" | 46
| 194.6
| 1540.56
|-
| style="text-align:right;" | 46.5
| 194.65
| 1540.16
|-
| style="text-align:right;" | 47
| 194.7
| 1539.77
|-
| style="text-align:right;" | 47.5
| 194.75
| 1539.37
|-
| style="text-align:right;" | 48
| 194.8
| 1538.98
|-
| style="text-align:right;" | 48.5
| 194.85
| 1538.58
|-
| style="text-align:right;" | 49
| 194.9
| 1538.19
|-
| style="text-align:right;" | 49.5
| 194.95
| 1537.79
|-
| style="text-align:right;" | 50
| 195
| 1537.4
|-
| style="text-align:right;" | 50.5
| 195.05
| 1537
|-
| style="text-align:right;" | 51
| 195.1
| 1536.61
|-
| style="text-align:right;" | 51.5
| 195.15
| 1536.22
|-
| style="text-align:right;" | 52
| 195.2
| 1535.82
|-
| style="text-align:right;" | 52.5
| 195.25
| 1535.43
|-
| style="text-align:right;" | 53
| 195.3
| 1535.04
|-
| style="text-align:right;" | 53.5
| 195.35
| 1534.64
|-
| style="text-align:right;" | 54
| 195.4
| 1534.25
|-
| style="text-align:right;" | 54.5
| 195.45
| 1533.86
|-
| style="text-align:right;" | 55
| 195.5
| 1533.47
|-
| style="text-align:right;" | 55.5
| 195.55
| 1533.07
|-
| style="text-align:right;" | 56
| 195.6
| 1532.68
|-
| style="text-align:right;" | 56.5
| 195.65
| 1532.29
|-
| style="text-align:right;" | 57
| 195.7
| 1531.9
|-
| style="text-align:right;" | 57.5
| 195.75
| 1531.51
|-
| style="text-align:right;" | 58
| 195.8
| 1531.12
|-
| style="text-align:right;" | 58.5
| 195.85
| 1530.72
|-
| style="text-align:right;" | 59
| 195.9
| 1530.33
|-
| style="text-align:right;" | 59.5
| 195.95
| 1529.94
|-
| style="text-align:right;" | 60
| 196
| 1529.55
|-
| style="text-align:right;" | 60.5
| 196.05
| 1529.16
|-
| style="text-align:right;" | 61
| 196.1
| 1528.77
|-
| style="text-align:right;" | 61.5
| 196.15
| 1528.38
|-
| style="text-align:right;" | 62
| 196.2
| 1527.99
|-
| style="text-align:right;" | 62.5
| 196.25
| 1527.6
|-
| style="text-align:right;" | 63
| 196.3
| 1527.22
|-
| style="text-align:right;" | 63.5
| 196.35
| 1526.83
|-
| style="text-align:right;" | 64
| 196.4
| 1526.44
|-
| style="text-align:right;" | 64.5
| 196.45
| 1526.05
|-
| style="text-align:right;" | 65
| 196.5
| 1525.66
|-
| style="text-align:right;" | 65.5
| 196.55
| 1525.27
|-
| style="text-align:right;" | 66
| 196.6
| 1524.89
|-
| style="text-align:right;" | 66.5
| 196.65
| 1524.5
|-
| style="text-align:right;" | 67
| 196.7
| 1524.11
|-
| style="text-align:right;" | 67.5
| 196.75
| 1523.72
|-
| style="text-align:right;" | 68
| 196.8
| 1523.34
|-
| style="text-align:right;" | 68.5
| 196.85
| 1522.95
|-
| style="text-align:right;" | 69
| 196.9
| 1522.56
|-
| style="text-align:right;" | 69.5
| 196.95
| 1522.18
|-
| style="text-align:right;" | 70
| 197
| 1521.79
|-
| style="text-align:right;" | 70.5
| 197.05
| 1521.4
|-
| style="text-align:right;" | 71
| 197.1
| 1521.02
|-
| style="text-align:right;" | 71.5
| 197.15
| 1520.63
|-
| style="text-align:right;" | 72
| 197.2
| 1520.25
|-
| style="text-align:right;" | 72.5
| 197.25
| 1519.86
|}