High Isolation Filter-Shenzhen Link-all Technology Co., Ltd

High Isolation Filter

High isolation filter is a type of filter based on TFF technology with high isolation greater than 30dB at both pass port and reflection port

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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 band: 1290nm~1570nm, pass band: 1605nm~1645nm, combine/split wavelengths, low insertion loss, high isolation

Parameter	Unit	Specification
Operating Wavelength	nm	1260~1620
Port number	CH	3
Reflect Band Wavelength range	nm	1290~1570
Pass band wavelength range	nm	1605~1645
Insertion Loss(COM to Pass port, with connector)	dB	≤1.0
Insertion Loss(COM to Reflection port, with connector)	dB	≤1.0
Ripple	dB	≤0.5
Isolation@pass port	dB	≥30
Isolation@reflection port	dB	≥30
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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