CWDM Dual Band

CWDM Dual Band filters are used to transmit one or more standard CWDM channels in two separate bands, also available for custom band width design in each band.

Iridian’s dual band filters have proved to be very popular in recent CWDM designs as they can reduce the number of required filters (and the associated packaging and alignment), minimize insertion loss and allow more compact module packaging.

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Graph Passband Range [nm] Adjacent Channel Isolation [dB] Product
CWDM 1290 1350 Dual Band 1260.0-1277.5; 1402.5-1417.5 >30 CWDM 1290 1350 Dual Band
CWDM 1270 1410 Dual Band 1282.5-1297.5; 1342.5-1357.5 >30 CWDM 1270 1410 Dual Band
CWDM 1320(4s0) 1550 Dual Band 1282.5-1357.5; 1542.5-1557.5 >30 CWDM 1320(4s0) 1550 Dual Band
CWDM 1430 1490 Dual Band 1422.5-1437.5; 1482.5-1497.5 >30 CWDM 1430 1490 Dual Band
CWDM 1450 1590 Dual Band 1442.5-1457.5; 1582.5-1597.5 >30 CWDM 1450 1590 Dual Band
CWDM 1470 1530 Dual Band 1462.5-1477.5; 1522.5-1537.5 >30 CWDM 1470 1530 Dual Band
CWDM 1510 1570 Dual Band 1462.5-1477.5 & 1522.5-1537.5 >30 CWDM 1510 1570 Dual Band

 

Dual Band Filter Application Note