Features
Low Insertion Loss
High Isolation
Low PDL
Good Directivity
Good Environmental Stability

Applications

Optical Fiber Communication Systems
Optic-fiber Access Networks
Optic-fiber CATV
Optical Fiber Test Equipments
Optic-fiber Sensors

Parameters
Type	Multiplexer	Demultiplexer
		Standard	High Isolation	Ultra-high Isolation
Center wavelength（nm）	1310 and 1550
Bandwidth（nm）	±15
Max insertion loss（dB）	0.35	0.35	0.75	1.0
Min wavelength isolation（dB）	18	18	30	40
±10nm Bandwidth typical isolation（dB）	20	20	37	45
Min directivity（dB）	>60
PDL（dB）	<0.1
Operating temperature（℃）	-25~+70
Storage temperature（℃）	-40~+85
Max operating power (mW)	<300
Max tensile strength (N)	>5
Package dimension (mm)	Ø3.0×50 or Ø4.0×50
Industry standard	Telcordia GR-1221-CORE

The 1310/1550nm Standard WDMs were widely used to upgrade the existing optical fiber networks and enlarge the capacity of communications, as well as to introduce new services. They turned out to be having good performance in applications.