Single Mode WDM

Filter WDM

4-8-16 Channel CWDM

What is a WDM ?

WDM (Wavelength-division Multiplexing): WDM is a fundamental passive optical component for optical system. Sending several signals through one WDM with different wavelengths of light. By its special physical character, for instance, a fused dual-channel WDM will be able to double the data transmission bandwidth at very low cost.

CWDM (Coarse Wavelength-division Multiplexing) allows eight or fewer channels to be stacked in the 1550 nm region of optical fiber, the C-Band.

DWDM (Dense Wavelength-division Multiplexing) is able to transmit many of closely spaced wavelengths in the 1550 nm region over a single optical fiber. Wavelength spacings are usually 100 GHz or 200 GHz

Plank is a leading fused WDM company in the industry and ability to supply the high reliability WDM on the market. Plank WDM products come with compact size, Low Insertion Loss, Bi-directional and Environmentally Independent features.

Plank also Provides WDM System Integration service for our worldwide customers, the integration module could be ABS box, LGX box, Rackmount Chassis or any other custom defined housing.

For further information, please get the specification sheets at download zone.


Single Mode WDM


Specifications:

 

Parameter 

980/1550

1480/1550

1550/1650

Grade    
A
B
A
B
A
B
Max. Insertion Loss(dB) 
0.4
0.6
0.6
1.0
0.6
1.0
Isolation(dB)     
20
18
12
10
12
10
Bandwidth(nm) 
+/- 10
+/- 5
+/- 10
Polarization Stability(dB) 
0.25
0.15
0.15
Directivity(dB)
>55

 

Parameter 

1310/1550

Grade    

A

B

2 stage

3 stage

Max. Insertion Loss(dB)

0.3

0.5

0.7

1.1

Isolation(dB)  

17

14

30

40

Polarization Stability(dB)   

0.1

0.2

0.15

0.15

Bandwidth(nm)

+/- 15

Directivity(dB)

>55

 

Operation Temperature()

-40 to +70 *

Temperature Coefficient(dB/)

0.002

Storage Temperature()

-50 to +85

Package Dimensions(mm)

Bf :3.0(Ф)x54(L)
LT : 3.5(Ф)X65(L)
PVC : 95(L) x 11(W) X 9.5(H)
Box : 162(L) X 110(W) x 22(H)

* Bare fiber: -40 to +70, other package: 0 to +70


Filter WDM


4 - 8 - 16  Channel CWDM


Parameters 4CH
8CH
16CH
Function Mux & Demux
Operating Wavelength (nm) 1480 ~ 1620
Center Wavelength (nm) 1270(1271),1290(1291),......1610(1611)
Center Wavelength Accuracy (nm) 1.0
Channel Spacing (nm)
20
Passband Bandwidth(@0.5db)(nm)
15
Insertion Loss (dB)

1.4
2.6
5.0
Isolation (dB)
Adjacent
30
Non Adjacent
40
Ripple (dB)
0.5
Polarization Dependent Loss (dB) 0.15
0.15
0.20
Directivity (dB) 55
Storage temp.( ) -40 to +85
Operation temp. (Ambient)( ) -10 to +70
Optical Power (mW)
300
Tensile Load (N)
5
**The spec. is without connector's los