Product Overview
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Fiber Optic Filter Wavelength Division Multiplexer (FWDM) is based on environmentally stable thin-film filter technology.
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These devices combine or separate light at different wavelengths in a wide wavelength range.
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They offer very low insertion loss, low polarization dependence, high isolation, and excellent environmental stability.
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High power handling capability is achieved through unique pigtail processing and high-quality AR coating.
Key Features
✔
Low Insertion Loss (IL) & High isolation
✔
Low Polarization Dependent Loss (PDL)
✔
Wide operating wavelength range & High stability
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Epoxy-free optical path & High extinction ratio
✔
Proven FBT fabrication techniques & Fused technology
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Compact design: 1x2 port WDM filter
Technical Specifications
| Type |
- |
FWDM |
| Operating Wavelength (T: Transmission / R: Reflection) |
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 |
≥ 17 |
| PDL |
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 |
Note:
1. Customization is available.
2. Specified without connector; add an additional 0.2dB loss per connector.
Applications
▶
EDFAs, Raman amplifiers, and WDM networks.
▶
HFC (Network of fiber and coaxial for CATV, CCTV).
▶
All FTTH applications and Passive fiber optic network systems.
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Optical fiber network upgrading and fiber optical instruments.
Package & Cable Options
📦
Package Way: Steel tube, ABS black modular box.
Input/Output Cable: Bare optical fiber, 0.9 mm, 2.0 mm, and 3.0 mm.
Frequently Asked Questions
What is the main function of an FWDM?
The Fiber Optic Filter Wavelength Division Multiplexer (FWDM) is designed to combine or separate light at different wavelengths across a wide range, effectively increasing the transmission capacity of a single optical fiber.
What technology is used in these FWDM devices?
These devices are built using environmentally stable thin-film filter technology and fused technology, ensuring high reliability and performance stability.
What are the typical insertion loss values for these components?
The transmission insertion loss is typically ≤ 0.80 dB, while the reflection insertion loss is ≤ 0.60 dB, ensuring minimal signal degradation.
Can these devices handle high power?
Yes, high power handling capability is achieved through unique pigtail processing and high-quality AR (Anti-Reflection) coating.
What types of packaging and cable diameters are available?
We offer packaging in steel tubes or ABS black modular boxes. Available cable diameters for input and output include bare fiber, 0.9mm, 2.0mm, and 3.0mm.
Are custom wavelength configurations supported?
Yes, customization is available to meet specific network requirements, including various transmission and reflection wavelength combinations like T1550/R1310&1490.
KOCENT OPTEC
