Optical Communications Rules of Thumb

| GHz | l nm |
|---|---|
| 197100 | 1521.02 |
| 197050 | 1521.40 |
| 197000 | 1521.79 |
| 196950 | 1522.18 |
| 196900 | 1522.56 |
| 196850 | 1522.95 |
| 196800 | 1523.34 |
| 196750 | 1523.72 |
| 196700 | 1524.11 |
| 196650 | 1524.50 |
| 196600 | 1524.89 |
| 196550 | 1525.27 |
| 196500 | 1525.66 |
| 196450 | 1526.05 |
| 196400 | 1526.44 |
| 196350 | 1526.83 |
| 196300 | 1527.22 |
| 196250 | 1527.61 |
| 196200 | 1527.99 |
| 196150 | 1528.38 |
| 196100 | 1528.77 |
| 196050 | 1529.16 |
| 196000 | 1529.55 |
| 195950 | 1529.94 |
| 195900 | 1530.33 |
| 195850 | 1530.73 |
| 195800 | 1531.12 |
| 195750 | 1531.51 |
| 195700 | 1531.90 |
| 195650 | 1532.29 |
| 195600 | 1532.68 |
| 195550 | 1533.07 |
| 195500 | 1533.47 |
| 195450 | 1533.86 |
| 195400 | 1534.25 |
| 195350 | 1534.64 |
| 195300 | 1535.04 |
| 195250 | 1535.43 |
| 195200 | 1535.82 |
| 195150 | 1536.22 |
| 195100 | 1536.61 |
| 195050 | 1537.00 |
| 195000 | 1537.40 |
| 194950 | 1537.79 |
| 194900 | 1538.19 |
| 194850 | 1538.58 |
| 194800 | 1538.98 |
| 194750 | 1539.37 |
| 194700 | 1539.77 |
| 194650 | 1540.16 |
| 194600 | 1540.56 |
| 194550 | 1540.95 |
| 194500 | 1541.35 |
| 194450 | 1541.75 |
| 194400 | 1542.14 |
| 194350 | 1542.54 |
| 194300 | 1542.94 |
| 194250 | 1543.33 |
| 194200 | 1543.73 |
| 194150 | 1544.13 |
| 194100 | 1544.53 |
| 194050 | 1544.92 |
| 194000 | 1545.32 |
| 193950 | 1545.72 |
| 193900 | 1546.12 |
| 193850 | 1546.52 |
| 193800 | 1546.92 |
| 193750 | 1547.32 |
| 193700 | 1547.72 |
| 193650 | 1548.12 |
| 193600 | 1548.51 |
| 193550 | 1548.92 |
| 193500 | 1549.32 |
| 193450 | 1549.72 |
| 193400 | 1550.12 |
| 193350 | 1550.52 |
| 193300 | 1550.92 |
| 193250 | 1551.32 |
| 193200 | 1551.72 |
| 193150 | 1552.12 |
| 193100 | 1552.52 |
| 193050 | 1552.93 |
| 193000 | 1553.33 |
| 192950 | 1553.73 |
| 192900 | 1554.13 |
| 192850 | 1554.54 |
| 192800 | 1554.94 |
| 192750 | 1555.34 |
| 192700 | 1555.75 |
| 192650 | 1556.15 |
| 192600 | 1556.56 |
| 192550 | 1556.96 |
| 192500 | 1557.36 |
| 192450 | 1557.77 |
| 192400 | 1558.17 |
| 192350 | 1558.58 |
| 192300 | 1558.98 |
| 192250 | 1559.39 |
| 192200 | 1559.79 |
| 192150 | 1560.20 |
| 192100 | 1560.61 |
| 192050 | 1561.01 |
| 192000 | 1561.42 |
| 191950 | 1561.83 |
| 191900 | 1562.23 |
| 191850 | 1562.64 |
| 191800 | 1563.05 |
| 191750 | 1563.46 |
| 191700 | 1563.86 |
| 191650 | 1564.27 |