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Filter Wavelength Division Multiplexer 

(FWDM Series)

The Filter Wavelength Division Multiplexer series are based on environmentally stable Thin Film Filters technology. The devices combine or separate light at different wavelength in a wide wavelength range. They offer very low insertion loss, low polarization dependence, high isolation and excellent environmental stability. High power handling capability can be achieved through unique pigtail processing and high quality AR coating. These components have beed extensively used in EDFAs, Raman amplifier, WDM networks and fiber optics instrumentation.

Performance Specifications

Parameters
Unit 
Values  
Pass Band Wavelength Range  nm 1270-1350(1530-1600) 1450-1490(1530-1580) 1500-1520(1530-1570) 950-1010(1500-1600)
Typ.  Insertion Loss  dB 0.4 0.4 0.5 0.5
Max. Insertion Loss  dB 0.6 0.6 0.7 0.7
Typ. Isolation  dB 35 30 35 35
Min. Isolation  dB 30 25 30 30
Reflection Band  Wavelength Range  nm 1530-1600(1270-1350) 1530-1580(1450-1490) 1530-1570(1500-1520) 1500-1600(950-1010)





Min. Return Loss 
Typ. Insertion Loss  dB
0.3
Max. Insertion Loss  dB
0.5
Typ. Isolation  dB
15
Min. Isolation  dB
12
dB
>=50
Max. PDL  dB
0.1
Typ. PDL dB
0.05
Thermal Stability  dB/° C
<=0.005
Max. Optical Power mW
300
Max. Tensile Load  N
5
Fiber Type SMF-28 Fiber HI 1060 Fiber for pump
Channel(Two ports)
Operating Temperature   ° C
-5 to +70
Storage Temperature  ¡° C
-40 to +85
*Above specifications are for device without connector.
*For devices with connectors, IL will be 0.3dB higher, RL will be 5dB lower.

Package Dimensions

 

 

Ordering Information (fill on the line)

FWDM
 

Wavelength

Connector Type

Fiber Type

Fiber Length

   
 
3155 - 1310 Pass/1550 Reflect
5531 - 1310 Reflect/1550 Pass
4855 - 1480 Pass/1550 Reflect
5548 - 1480 Reflect/1550 Pass
5155 - 1510 Pass/1550 Reflect
5551 - 1510 Reflect/1550 Pass
9855 - 980 Pass / 1550 Reflect
5598 - 980 Reflect / 1550 Pass
1 - FC/UPC
2 - FC/APC
3 - SC/UPC
4 - SC/APC
5 - LC/UPC
6 - ST/UPC
N - None
S - Specify
B - 250um bare fiber
L - 900um loose tube
S - Specify

1 - 1.0 m
S - Specify
   

* SMF-28 is used for 1550nm interface and HI 1060 is used for 980nm channel

 
 
  

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