1x2 FWDM 1310nm 1490nm 1550nm Filter WDM for FTTx
1. Description:
FTTX Filter WDM module extensively used in EDFA, Raman amplifiers, WDM networks and fiber optics instrumentation is based on Thin Film Filter (TFF) technology. The device combines or separates light at different wavelengths in a wide wavelength range. It can expand the capacity of a single fiber to achieve bidirectional communication, so that widely used in optical network upgrade and expansion, or introduce new comprehensive business etc.
Takfly provides filter-based wavelength division multiplexing (WDM) filter devices that are customized to the particular wavelength bands for your special applications. As you might know, GEPON system itself works on 1310/1490, so CATV signal here is delivered over same fiber using 1550nm, and FWDM is a place where all this get's "mixed".
* 1310/1490/1550/1610nm Filter Wavelength Division Multplexer (Fwdm)
* lnsertion Loss TemperatureSensitivity(db/C):<0 005="" returnloss="" db="" :="">50
* Wavelength:1490Pass,1310&1550reflect,1550Pass,1310&1490reflect,1310&1490Pass,1550reflectis optional
* Fiber Type: Bare fiber,900um loose tube is optional
* FiberLength:1m,2m is optional
* ln/Out Connector: None,FC/APC,FC/PC,SC/APC,SC/PC,ST,LC is optional
Typical Advantage:
1. Wide Operating wavelength Range
2. Low Insertion Loss
3. Ultra Flat Wide Passband
4. High Channel Isolation
5. High Stability and Reliability
6. Expoy-free on Optical Path
Typical Usage:
1. EDFA
2. Raman Amplifier
3. WDM Networks
Package Type:
Steel Tube Package for 250um bare fiber and 900um fiber
ABS for 900um,2.0mm,3.0mm
Performance Specification:
| Model |
FWDM-1*2 |
| Pass band Central Wavelength nm |
1550 |
| Reflective Band Central Wavelength nm |
1310&1490 |
| Pass band Wavelength nm |
1530~1620 |
| Reflective Band Wavelength nm |
1260~1360&1450~1520 |
| Insertion Loss |
Transmission 1550nmdB |
0.60 |
| Reflection 1310nm dB |
0.40 |
| Reflection1490nm dB |
0.40 |
| Isolation |
Transmission 1310nm dB |
>50 |
| Transmission 1490nm dB |
>35 |
| Reflection 1550nm dB |
>20 |
| PDL dB |
≤0.1 |
| Return Loss dB |
≥60 |
| DirectivitydB |
≥55 |
| Fiber Length m |
1.0 |
| Operating TemperatureºC |
-10~+70 |
| Storage TemperatureºC |
-40~+85 |
| Dimensionsmm |
34*Ø5.5 & 90x20x10 |
| Fiber Type |
SM,9/125,900um |
Audited Supplier 
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