Filter-based WDM Device

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Filter-based WDM Device (FWDM)

Publish time 2022-04-19 14:44

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. These components have extensively used in EDFAs, raman amplifier, fiber sensor system, WDM networks and fiber optics instrumentation.

Product Name: Filter-based WDM Device (FWDM)

Features
Based on thin film filter technology and high wavelength stability
Low polarization dependent loss and high channel isolation
Flat and wide passband
Epoxy free optical path and excellent reliability
Telcordia GR-1221-CORE qualified and RoHS compliant

Applications
WDM system
CATV system
Telecommunication network system
Metro/Access networks
EDFA
Fiber optic instruments
Transmitters and fiber lasers
Single direction/Bi-direction transmission
Line monitoring
FTTX

Specifications

Item		Unit	Parameters	Note
Pass Port (C-P)	Central Wavelength l_p	nm	1550
	Wavelength Range	nm	1535~1560
	Insertion Loss	dB	≤0.60
	Flatness	dB	≤0.30
	Isolation @λ_R	dB	≥30
Reflect Port (C-R)	Central Wavelength l_R	nm	1310&1490
	Wavelength Range	nm	1260~1360,1480~1500
	Insertion Loss	dB	≤0.40
	Flatness	dB	≤0.25
	Isolation @λ_P	dB	≥18
Directivity		dB	≥50
Optical Return Loss		dB	≥50
Polarization Dependent Loss		dB	≤0.1
PMD		ps	≤0.1
Thermal Stability		dB/℃	≤0.005
Optical Power		mW	≤500
Tensile Load		N	≥5
Operating Temperature		℃	-5 to +70
Storage Temperature		℃	-40 to +85
Fiber type			SMF-28e
Package dimension		mm	￠5.5*38