4 port 1x3 WDM Filter
4 port 1x3 WDM filter is a type of filter based on TFF technology which have 1 pass port and 2 reflection port, it is used to divide wavelengths into 3 groups or combine 3 group of wavelength into 1 series
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Product Overview
FWDM, Filter Wavelength Division Multiplexing is used to cobmine/split band wavelengths which is different with CWDM and DWDM
Specification

Example: 3 ports WDM, edge filter, reflection band1: 1290nm~1330nm, reflection band2: 1530nm~1570nm pass band: 1605nm~1645nm, combine/split wavelengths, low insertion loss, high isolation

Parameter

Unit

Specification

Operating Wavelength

nm

1260~1620

Port number

CH

4

Reflect Band1 Wavelength range

nm

1290~1330

Reflect Band2 Wavelength range

nm

1530~1570

Pass band wavelength range

nm

1605~1645

Insertion Loss(COM to Pass port, with connector)

dB

1.0

Insertion Loss(COM to Reflection port1, with connector)

dB

1.0

Insertion Loss(COM to Reflection port2, with connector)

dB

1.0

Ripple

dB

≤0.5

Isolation@pass port

dB

30

Isolation@reflection port

dB

15

Insertion Loss Thermal Stability

dB/

≤0.006

Wavelength Thermal Stability

nm/

≤0.002

Return loss(with connector)

dB

50

Directivity

dB

≥55

PDL

dB

≤0.25

PMD

PS

≤0.15

Power Handling

mW

300

Parameter

Specification

UNITS

Remark

Operating Temperature

-5 ~ +70

°C

Storage Temperature

-40 ~ +85

°C

Operating Humidity

5 ~ 95

%RH

Tensile strength

>5

N

Main Features

  • Based on thin film filter technology
  • Cost-effective WDM technology
  • High channel isolation
  • High stability and excellent reliability
  • High durability
  • Low insertion loss
  • Low polarization dependent Loss
  • Wide operating wavelength range
  • Ultra flat wide pass band
  • Telcordia compliant
  • RoHs compliant

Application Scenarios

  • FTTH application
  • Fiber optical instruments
  • Fiber optical amplifier
  • System monitoring
  • WDM systems

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