Optical Communications Rules of Thumb

Example 25 GHz Grid for C and L Bands (Based on ITU Guidelines)

Example 25 GHz Grid for C and L Bands (Based on ITU Guidelines)

GHz

l nm

197100

1521.02

197075

1521.21

197050

1521.40

197025

1521.60

197000

1521.79

196975

1521.98

196950

1522.18

196925

1522.37

196900

1522.56

196875

1522.76

196850

1522.95

196825

1523.14

196800

1523.34

196775

1523.53

196750

1523.72

196725

1523.92

196700

1524.11

196675

1524.30

196650

1524.50

196625

1524.69

196600

1524.89

196575

1525.08

196550

1525.27

196525

1525.47

196500

1525.66

196475

1525.86

196450

1526.05

196425

1526.24

196400

1526.44

196375

1526.63

196350

1526.83

196325

1527.02

196300

1527.22

196275

1527.41

196250

1527.61

196225

1527.80

196200

1527.99

196175

1528.19

196150

1528.38

196125

1528.58

196100

1528.77

196075

1528.97

196050

1529.16

196025

1529.36

196000

1529.55

195975

1529.75

195950

1529.94

195925

1530.14

195900

1530.33

195875

1530.53

195850

1530.73

195825

1530.92

195800

1531.12

195775

1531.31

195750

1531.51

195725

1531.70

195700

1531.90

195675

1532.09

195650

1532.29

195625

1532.49

195600

1532.68

195575

1532.88

195550

1533.07

195525

1533.27

195500

1533.47

195475

1533.66

195450

1533.86

195425

1534.05

195400

1534.25

195375

1534.45

195350

1534.64

195325

1534.84

195300

1535.04

195275

1535.23

195250

1535.43

195225

1535.63

195200

1535.82

195175

1536.02

195150

1536.22

195125

1536.41

195100

1536.61

195075

1536.81

195050

1537.00

195025

1537.20

195000

1537.40

194975

1537.59

194950

1537.79

194925

1537.99

194900

1538.19

194875

1538.38

194850

1538.58

194825

1538.78

194800

1538.98

194775

1539.17

194750

1539.37

194725

1539.57

194700

1539.77

194675

1539.96

194650

1540.16

194625

1540.36

194600

1540.56

194575

1540.76

194550

1540.95

194525

1541.15

194500

1541.35

194475

1541.55

194450

1541.75

194425

1541.94

194400

1542.14

194375

1542.34

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