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FWDM Cassete

FWDM Cassette – 1310/1490/1550nm Wavelength Multiplexer
The FWDM (Filter Wavelength Division Multiplexing) Cassette is a passive optical component that combines or separates multiple wavelengths—typically 1310 nm, 1490 nm, and 1550 nm—onto a single optical fiber. Designed for FTTH, GPON, and CATV networks, it allows for efficient bidirectional data, voice, and video transmission using one fiber, reducing infrastructure costs.

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Housed in a modular LGX cassette or mini module, this device uses thin-film filter technology to ensure low insertion loss, high channel isolation, and excellent reliability across a wide temperature range. It’s compatible with SC/APC, SC/UPC connectors, and is available in 1×2 or 1×3 port configurations.

🔧 Technical Specifications:
Parameter Value
Wavelengths 1310 nm / 1490 nm / 1550 nm
Insertion Loss ≤ 0.6 dB
Isolation ≥ 30 dB (channel-to-channel)
Return Loss ≥ 45 dB
Fiber Type Single-mode (OS2, 9/125 µm)
Connector Type SC/APC, SC/UPC
Form Factor LGX Cassette / Rack Mount / Mini Box
Operating Temperature -40°C to +85°C

✅ Key Features:
Combines or separates data (1490 nm), voice (1310 nm), and video (1550 nm)

High channel isolation minimizes signal interference

Plug-and-play design with standard SC or LC connectors

Supports GPON, EPON, and RF overlay architectures

LGX-compatible cassette for easy rack mounting

Low insertion loss and wideband temperature stability

🛠️ Applications:
FTTH/FTTB access networks

Triple-play services (data, voice, CATV) over one fiber

Passive Optical Networks (PON) – GPON, EPON

CATV overlay in telecom networks

Optical distribution frames and wall-mount boxes

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