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Filter Type WDM (FWDM)

Filter type WDM is based on proven thin-film filter technology. This WDM is widely used in fiber optical communication systems and EDFA where flat and broad operating bands are needed.


Key Features:

* Broad operating band

* High channel isolation

* High stability and reliability


Applications:

* EDFA

* WDM systems

* CATV

  • Details
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Filter Type WDM(FWDM)-V1.2


Specifications

                       Type

Parameter

1310/1550

1480/1550

850/1310 Multi-mode

980/1060

1570/2000

Pass band wavelength   (nm)

±40

±20

±50

960~990

1950~2050

Reflection band wavelength   (nm)

±40

±20

±50

1020~1080

1560~1580

Transmission insertion   loss (dB)

≤0.6

≤0.6

≤0.7

≤ 0.8

≤ 0.8

Reflection insertion   loss (dB)

≤0.4

≤0.4

≤0.6

≤ 0.6

≤ 0.8

Transmission channel   isolation (dB)

≥30

≥25

 Reflection channel isolation (dB)

≥15

≥13

≥12

Directivity (dB)

≥55

≥35

≥50

≥50

Return loss (dB)

≥50

≥30

≥50

≥50

PDL (dB)

≤0.1

Insertion   loss thermal stability (dB/ )

≤0.005

Power handling (mW)

≤500

Operating temperature   ()

-5 ~ +70

Storage temperature   ()

-40 ~ +85

Dimensions (mm)

Ф5.5× L34

Ф5.5× L35

Fiber type

Corning SMF-28e

50/125 or 62.5/125 Multi-mode   fiber

Corning Hi1060

Corning SMF-28e

*The above specification is without connector, Other specifications can be made on customer request.

*The specification of filter type multi-mode WDM is based on IEC standard fiber mode filter .If testing without fiber mode filter,IL will be 0.1dB higher