EDFA with 2 to 64 Multi-Output Optical Amplifier

The Thor Fiber Multi-Output F-EDFA-XX-YY series is designed for use in CATV, FTTH, and HFC networks. It’s well-suited for both long-distance optical transmission and local fiber distribution. Housed in a standard 19” rackmount chassis, each unit is available with 4,8, 16, 32, or 64 output ports, and supports a range of output power levels to meet various system requirements.

Output power is available from +14 dBm to +23 dBm, with custom configurations available upon request.

Operating in the 1550nm wavelength range, this amplifier series covers the full gain window of 1540–1560nm. It offers a reliable and cost-effective solution for scaling broadband video networks.

Thor’s multi-port EDFAs are engineered for high-performance transmission of both CATV RF analog signals (NTSC/PAL) and digital signals (QAM or ATSC). They utilize high-quality pump lasers and premium erbium-doped fiber components to ensure stable and long-lasting operation. Built-in APC, ACC, and ATC circuitry helps regulate output power and protect the system under varying conditions.

Each unit features a front-panel LCD display for real-time status and alarm monitoring. For added safety, the laser will automatically shut down if input power is lost, protecting both the equipment and your network.

Key Features – Multi-Output EDFA Optical Amplifier

• High-Density, High-Efficiency Design – Delivers up to +23 dBm optical output per port

• Flexible Output Options – Available with 2, 4, 8, 16, 32, or 64 optical outputs

• Standard 19” Rackmount Chassis – Compact and ideal for headend or equipment room installations

• Web-Based NMS Management – Integrated Web GUI for remote monitoring, configuration, and alarms

• SC/APC  or LC/APC Connectors – Industry-standard connectors for reliable and low-loss connections

Model Format: F-EDFA-XX-YY

• XX = Number of Optical Outputs (2, 4,8,16,32 or 64 outputs via SC/APC or LC/APC connectors)

• YY = Optical Output Power per Port in dBm (+14, 16,18,20, 22 and +23 dBm each)

These EDFAs are designed for distributing a single 1550nm input signal across multiple fiber outputs with precise power levels to compensate for optical losses in splitters and fiber runs.

Examples:

• F-EDFA-8-16 – 8 outputs, each delivering +16 dBm optical power

• F-EDFA-4-20 – 4 outputs, each delivering +20 dBm optical power

• F-EDFA-8-18 – 8 outputs, each delivering +18 dBm optical power

• F-EDFA-16-14 – 16 outputs, each with +14 dBm for mid-sized fiber distribution

• F-EDFA-32-20 – 32 outputs, each with +20 dBm for large CATV or FTTH systems

• F-EDFA-64-12 – 64 outputs, each with +12 dBm, ideal for short-distance or low-loss applications

How to Select the Right EDFA Model

To ensure proper power distribution across your network, follow this method:

1. Determine how many end-points (receivers) you need to serve.

2. Select the number of EDFA outputs based on the total number of splitters you'll deploy.

3. Account for optical losses:

   • Insertion loss of external splitters (e.g., ~14 dB for 1x16).

   • Fiber loss (~0.25 dB/km × distance).

4. Choose an EDFA model with sufficient output power per port to compensate for those losses.

Example: Distributing CATV RF to 512 Endpoints

• Use: 32-output EDFA

• Each output connects to a 1x16 external splitter → 32 × 16 = 512 receivers

• Optical loss:

  • Splitter loss: ~14 dB

  • Fiber loss (20 km): ~5 dB

  • Total loss: ~19 dB

• Receiver sensitivity: 0 dBm

• Required EDFA output per port: ≥ +19 dBm

• Recommended model: F-EDFA-32-20
  (32 outputs, each with +20 dBm output power)

F-EDFA Series Part Number Matrix

Model Format: F-EDFA-XX-YY
XX = Number of Outputs (2, 4, 8, 16, 32, 64)
YY = Output Power per Port in dBm (14, 16, 18, 20, 22, 23)