GEZHI DWDM Red/Blue filter is a thin-film filter device. It is a three-port device. One port is called the "Common." The other two ports provide the conduit for the two wavelength "bands."
The two bands are the Red (λ>1547 nm) and the Blue (λ<1543 nm) .
One band goes thru the Reflected leg, and the other band goes thru the Pass leg.
Typically, however, the device is used as a two-way (i.e. bidirectional) WDM. One band is sent to the Common leg, while the other band is delivered from the Common leg. (see example diagram)In a DWDM module, which uses a Red/Blue filter, a Mux may be combined with a Demux. For example, the Mux combines DWDM channels in the Red band, while the Demux separates DWDM channels in the Blue Band. Using a Red / Blue fillter, one can combine the Red Transmit channels and the Blue Receive channels onto a single fiber. |
Example of a Red/Blue WDM in bi-directional usage. |
Features Application
Ø Low Insertion Loss Ø WDM Network
Ø Wide Pass Band Ø Line Monitoring
Ø High Channel Isolation Ø Telecommunication
Ø High Reliability Ø Testing Instruments
DWDM Red/Blue Band Filter DWDM Red/Blue Band Filter DWDM Red/Blue Band Filter with
with Stainless steel tube with Plastic ASB box Package 19" 1RU Rack mount package
Performance Specifications
Type | FWDM | ||
Pass Channel Wavelength | nm | 1547~1561 (Red) | 1530~1543.2 (Blue) |
Reflection channel Wavelength | nm | 1530~1543.2 (Blue) | 1547~1561 (Red) |
Pass Channel insertion loss | dB | ≤0.60 | |
Reflection Channel insertion loss | dB | ≤0.40 | |
Channel Ripple | dB | ≤0.3 | |
Adjacent channel isolation | dB | ≥30 | |
Express channel isolation | dB | ≥12 | |
PDL | dB | ≤0.1 | |
PMD | Ps/nm | ≤0.1 | |
Directivity | dB | ≥55 | |
Return loss | dB | ≥50 | |
Power Handling | mW | 300 | |
Operating temperature | ℃ | -5~+70 | |
Storage temperature | ℃ | -40~+85 | |
Package Dimensions | mm | φ5.5x34 | |
Note: 1. Customization is available.
2. Insertion loss does not include connector, each connector will add 0.2dB loss.
3. Other wavelength can be made upon customer’s request. For example, L-Band R/B, C/L Band.
Ordering Information
Wavelength | Package Spec | Fiber Type | Fiber Diameter | Fiber Length | Connector |
R/B=Red/Blue Wavelength | S1= Φ5.5mm×35mm A0= 90×20×10 mm A1=100×80×10 mm A2= 120×80×18 mm A3=140×115×18 mm R1=19”1U Rackmount X= Others | 9=9/125 X=Others | 25=250um 90=900um 20=2.0mm 30=3.0mm X=Others | 05=0.5m 10=1.0m 15=1.5m X=Others | OO=None FP=FC/PC FA=FC/APC SP=SC/PC SA=SC/APC STP=ST/PC STA=ST/APC LP=LC/PC LA=LC/APC X=Others |
Address : 5F,Zhongshunyiquan Industry Park, Fuqian Road,Longhua District, Shenzhen, China
Address : 5F,Zhongshunyiquan Industry Park, Fuqian Road,Longhua District, Shenzhen, China
Tel : +86-755-23771707
Whatsapp : +86 13544277727
Email : sales@gezhi.net
Skype : 13544277727
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