FWDM Module

FWDM Module

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.
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Product Details

FWDM Module

FTTX Filter WDM module offers very low insertion loss, low PDL, high isolation and excellent environmental stability. Optico 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".

ParameterValue
Operating Wavelength (nm)1260~1620
Passband bandwidth (nm)1260~1458
Reflection bandwidth (nm)1463~1620
Channel flatness (dB)≤0.3
IL (dB)Pass Channel≤0.5
Reflection Channel≤0.3
Isolation (dB)Pass Channel≥20
Reflection Channel≥13
Fiber length (m)Pass Port(m)2.0±0.05
Others Port(m)2.5±0.05
Fiber typeCom PortSMF-28e Ultra fiber
Others PortG657 A2
Directivity (dB)≥55
Return loss (dB)≥55
PDL (dB)≤0.10
Power handling (mW)≤300
Operating temperature (℃)-10~ +70
Storage temperature (℃)-40 ~ +85
Dimensions (mm)Φ4.0*L16(glass tube)

* Above specification are for device without connector.

FWDM Module

Application

CATV system
WDM channel monitoring
FTTX system
Channel monitoring
Optical line protection


Features

Low IL and high channel isolation
Wide wavelength range
Flat wavelength response
Low dark current
High temperature stability


ParameterValue
Operating Wavelength (nm)1260~1620
Passband bandwidth (nm)1260~1458
Reflection bandwidth (nm)1463~1620
Channel flatness (dB)≤0.3
IL (dB)Pass Channel≤0.5
Reflection Channel≤0.3
Isolation (dB)Pass Channel≥20
Reflection Channel≥13
Fiber length (m)Pass Port(m)2.0±0.05
Others Port(m)2.5±0.05
Fiber typeCom PortSMF-28e Ultra fiber
Others PortG657 A2
Directivity (dB)≥55
Return loss (dB)≥55
PDL (dB)≤0.10
Power handling (mW)≤300
Operating temperature (℃)-10~ +70
Storage temperature (℃)-40 ~ +85
Dimensions (mm)Φ4.0*L16(glass tube)


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