3 Port FWDM Device
3 Port FWDM is based on thin film filter technology, it has a smooth channel bandwidth and high isolation, low insertion loss and high environmental stability and reliability etc, very suitable for use in optical amplifier, CATV and FTTH applications.
Description
Features & Applications
| Features | Applications |
| Wide Operating Wavelength Range | Testing Instruments |
| Low Insertion Loss | FTTH Tri-Play System |
| Ultra Flat Wide Passband | |
| High Channel Isolation | |
| High stability and reliability | |
| Epoxy-free on Optical Path |
Performance Specifications
| Parameter | Unit | FWDM Specifications |
| Type | – | FWDM |
| Operating Wavelength T: transmission wavelength R: reflection wavelength 1310±50,1490±10, 1550±10 1610±10, 1625±25, 1650±10 |
nm | T1550 R1310/1490 |
| T1490 R1310/1550 | ||
| T1310 R1490/1550 | ||
| T1550/1610 R1310/1490 | ||
| T1550/1625 R1310/1490 | ||
| T1625 R1310/1490/1550 | ||
| T1650 R1310/1490/1550 | ||
| Transmission Insertion Loss | dB | ≤0.80 |
| Reflection Insertion Loss | dB | ≤0.60 |
| Transmission Channel Isolation | dB | ≥30 |
| Reflection Channel Isolation | dB | ≥15 |
| PDL (Polarization Dependent Loss) | dB | ≤0.1 |
| Wavelength Thermal Stability | nm/℃ | ≤0.003 |
| Insertion Loss Thermal Stability | dB/℃ | ≤0.005 |
| Directivity | dB | ≥55 |
| Return Loss | dB | ≥45 |
| Operating Temperature | ℃ | -20~+70 |
| Storage Temperature | ℃ | -40~+85 |
| Package Dimension | For 250μm, 900μm | Φ5.5xL38 |
| For 2.0mm, 3.0mm | L90xW20xH10 |
Note: 1. Customization is available.
- Specified without connector, and add an additional 0.2dB loss per connector.
Selection Information
| Wavelength | Package Spec | Fiber Type | Fiber Diameter | Fiber Length | Connector |
| T15R13/14: T1550 R1310/1490nm T14R13/15: T1490 R1310/1550nm T13R14/15: T1310 R1490/1550nm T1625R13/14/15: T1625 R1310/1490/1550nm T1650R13/14/15: T1650 R1310/1490/1550/1610nm X: Others |
0=Glass Tube 1=Φ5.5x38mm 2=90x20x10mm 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 |
00=none LP=LC/UPC LA=LC/APC SP=SC/UPC SA=SC/APC FP=FC/UPC FA=FC/APC X=Customized |





