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Home > Products > Telecom Optics > Filter


Filter

FTTx●FTTx Double-direction Filter
●FTTx Triple-direction Filter
●CWDM


In general, wavelength division multiplexing systems are used for optical communication, the one is FTTx filter and the wavelengths are range from 1200-1600nm. Rising EO's double-direction filters and triple-direction filters are mainly in 1310nm, 1490nm and 1550nm for optical communication. They're widely applied in optical fiber double-direction transmition convision, CATV networks, DWDM.

FTTx Double-direction Filter

Specifications
Material: BK7
Incident angle: 0°, 45°
Pass band/Reflection band: 1310/1550±40nm, 1550/1310±40nm
Insertion Loss: <0.2dB
Isolation: >35dB
Working Temperature: -40°C~85°C
Storage Temperature: -55°C~120°C
Size: 1.8±0.1mm or Upon request
Thickness: 0.3mm, 0.55mm, 0.7mm or Upon request
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Double direction filter

FTTx Triple-direction Filter

Specifications
Material: BK7
Incident angle: 45°
Pass band/Reflection band: T1310/T1490/R1550±10nm, T1550/R1310/R1490±10nm, T1490/R1310/R1550±10nm
Insertion Loss: <0.2dB
Isolation: >40dB
Working Temperature: -40°C~85°C
Storage Temperature: -55°C~120°C
Size: 1.8±0.1mm or Upon request
Thickness: 0.3mm, 0.55mm, 0.7mm or Upon request
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triple direction filter

CWDM

Specifications
CWDM Filtering piece of channels have 0 and 1 two kinds。
Use scope for whole wavelength and common band type: 1270/1、1290/1、1310/1、1330/1、1350/1、1370/1、1390/1、1410/1、1430/1、1450/1、1470/1、1490/1、1510/1、1530/1、1550/1、1570/1、1590/1、1610/1nm
Flatness:<0.15db
Insertion loss :<0.15db
Bandpass width:14nm、15nm、16nm、17nm
Bandpass width of 30db:25nm、24nm、23nm
Surface Figure:40-20 S/D
Advantages:low insertion loss, ripple, qualcomm isolation ratio and high reflection with isolation ratio
Application:CWDM、MUX、DEMUX
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Double direction filter

 


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