ITU Reference Materials

ITU DWDM - 100GHz Spacing - 100 Channels (L band and C band)

Frequency (THz)	Wavelength (nm)
186.00	1611.79
186.10	1610.92
186.20	1610.06
186.30	1609.19
186.40	1608.33
186.50	1607.47
186.60	1606.60
186.70	1605.74
186.80	1604.88
186.90	1604.03
187.00	1603.17
187.10	1602.31
187.20	1601.46
187.30	1600.60
187.40	1599.75
187.50	1598.89
187.60	1598.04
187.70	1597.19
187.80	1596.34
187.90	1595.49
188.00	1594.64
188.10	1593.79
188.20	1592.95
188.30	1592.10
188.40	1591.26
188.50	1590.41
188.60	1589.57
188.70	1588.73
188.80	1587.88
188.90	1587.04
189.00	1586.20
189.10	1585.36
189.20	1584.53
189.30	1583.69
189.40	1582.85
189.50	1582.02
189.60	1581.18
189.70	1580.35
189.80	1579.52
189.90	1578.69
190.00	1577.86
190.10	1577.03
190.20	1576.20
190.30	1575.37
190.40	1574.54
190.50	1573.71
190.60	1572.89
190.70	1572.06
190.80	1571.24
190.90	1570.42
191.00	1569.59
191.10	1568.77
191.20	1567.95
191.30	1567.13
191.40	1566.31
191.50	1565.50
191.60	1564.68
191.70	1563.86
191.80	1563.05
191.90	1562.23
192.00	1561.42
192.10	1560.61
192.20	1559.79
192.30	1558.98
192.40	1558.17
192.50	1557.36
192.60	1556.55
192.70	1555.75
192.80	1554.94
192.90	1554.13
193.00	1553.33
193.10	1552.52
193.20	1551.72
193.30	1550.92
193.40	1550.12
193.50	1549.32
193.60	1548.51
193.70	1547.72
193.80	1546.92
193.90	1546.12
194.00	1545.32
194.10	1544.53
194.20	1543.73
194.30	1542.94
194.40	1542.14
194.50	1541.35
194.60	1540.56
194.70	1539.77
194.80	1538.98
194.90	1538.19
195.00	1537.40
195.10	1536.61
195.20	1535.82
195.30	1535.04
195.40	1534.25
195.50	1533.47
195.60	1532.68
195.70	1531.90
195.80	1531.12
195.90	1530.33

ITU DWDM - 50GHz Spacing - C Band

Frequency (THz) Wavelength (nm)
196.50 1525.66
196.45 1526.05
196.40 1526.44
196.35 1526.83
196.30 1527.21
196.25 1527.60
196.20 1527.99
196.15 1528.38
196.10 1528.77
196.05 1529.16
196.00 1529.55
195.95 1529.94
195.90 1530.33
195.85 1530.72
195.80 1531.12
195.75 1531.51
195.70 1531.90
195.65 1532.29
195.60 1532.68
195.55 1533.07
195.50 1533.47
195.45 1533.86
195.40 1534.25
195.35 1534.64
195.30 1535.04
195.25 1535.43
195.20 1535.82
195.15 1536.22
195.10 1536.61
195.05 1537.00
195.00 1537.40
194.95 1537.79
194.90 1538.19
194.85 1538.58
194.80 1538.98
194.75 1539.37
194.70 1539.77
194.65 1540.16
194.60 1540.56
194.55 1540.95
194.50 1541.35
194.45 1541.75
194.40 1542.14
194.35 1542.54
194.30 1542.94
194.25 1543.33
194.20 1543.73
194.15 1544.13
194.10 1544.53
194.05 1544.92
194.00 1545.32
193.95 1545.72
193.90 1546.12
193.85 1546.52
193.80 1546.92
193.75 1547.32
193.70 1547.72
193.65 1548.11
193.60 1548.51
193.55 1548.91
193.50 1549.32
193.45 1549.72
193.40 1550.12
193.35 1550.52
193.30 1550.92
193.25 1551.32
193.20 1551.72
193.15 1552.12
193.10 1552.52
193.05 1552.93
193.00 1553.33
192.95 1553.73
192.90 1554.13
192.85 1554.54
192.80 1554.94
192.75 1555.34
192.70 1555.75
192.65 1556.15
192.60 1556.55
192.55 1556.96
192.50 1557.36
192.45 1557.77
192.40 1558.17
192.35 1558.58
192.30 1558.98
192.25 1559.39
192.20 1559.79
192.15 1560.20
192.10 1560.61
192.05 1561.01
192.00 1561.42
191.95 1561.83
191.90 1562.23
191.85 1562.64
191.80 1563.05
191.75 1563.45
191.70 1563.86
191.65 1564.27
191.60 1564.68

ITU Wavelength Bands Range

Band Name	Description (meaning)	Wavelength Range (nm)
O-band	Original	1260 ~ 1360nm
E-band	Extended	1360 ~ 1460nm
S-band	Short	1460 ~ 1530nm
C-band	Conventional	1530 ~ 1565nm
L-band	Long	1565 ~ 1625nm
U-band	Ultra-long	1625 ~ 1675nm

ITU G.694.2 Nominal Central Wavelengths for CWDM (20nm Spacing)

Nominal Central Wavelength (nm)
1270
1290
1310
1330
1350
1370
1390
1410
1430
1450
1470
1490
1510
1530
1550
1570
1590
1610

Last Modified 4/12/07 2:54 PM

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