1. Product Overview
The SPOA-51EYAXU is a High Power Er/Yb Doped Fiber Amplifier from SOPTO, operating in the 1535~1565nm wavelength range, primarily designed for CATV and 1~8 channel continuous ITU wavelength applications. This product provides a flexible, cost-effective solution for large-scale FTTH coverage in CATV systems across medium and large cities.
This amplifier series supports multiple application modes including single-wavelength CATV transmission, CWDM single-fiber triple-wavelength, and flat-gain DWDM. It is a core component for building medium and large CATV fiber transmission networks. The total output optical power is selectable from 2~10W (27~41dBm), with flexibly configurable output port counts (SC: 16/32/64, LC: 32/64/128), adopting 1U or 2U rack structures, and supporting AC/DC dual power supply with carrier-grade dual power hot backup.
1535~1565nm
Gain Bandwidth
27~41dBm
Output Power
≤6.0dB
Noise Figure
128
Max Port Count
1U/2U
Rack Size
2. Key Features
- Premium Component Selection: Utilizes world-class brand pump lasers and OFS (USA) doped fiber, combined with advanced LG switch low-power circuit design, significantly reducing overall power consumption and heat generation.
- Comprehensive Control Loops: Triple control with APC (Automatic Power Control), ACC (Automatic Current Control), and ATC (Automatic Temperature Control), combined with excellent thermal design and temperature-controlled fans, ensures long lifetime and high reliability of pump lasers.
- Digital Control Adjustment: Employs a digital control chip, supporting remote or local output power adjustment.
- Optical Path Safety Protection: Comprehensive protection circuit design with optical detection and optical return loss monitoring, effectively protecting laser and optical path safety.
- Built-in Low-Noise Preamplifier: Built-in low-noise preamplifier eliminates the need for cascaded EDFA; operates with input optical power as low as -5dBm, effectively reducing CNR and MER degradation.
- PON Wavelength Division Multiplexing Support: Supports 1310/1490/1560nm EPON and GPON demultiplexer, with typical noise figure ≤5.0dB and maximum ≤6.0dB.
- Flexible Port Expansion: The front panel can be flexibly replaced based on the number of output ports; a built-in optical switch module can be added; the cooling fan supports hot-swap replacement.
- Operation and Management Interface: The front panel LCD displays overall operating parameters and alarm information; RJ45 provides serial communication and SNMP network management interfaces; supports carrier-grade dual power hot backup with CPU-assigned power allocation.
- Functional Expansion: Optional OSW (optical switch), optical transmitter, and GSM module installation for convenient equipment feature expansion.
3. Limit Parameters
| Parameter | Specification |
|---|---|
| Maximum Wavelength Range | 1535~1565nm |
| Minimum Input Power | -10dBm |
| Maximum Input Power | +10dBm |
| Limit Operating Temperature | -25°C ~ +70°C |
| Limit Operating Voltage | AC 90~265V & DC 30~72V |
4. Technical Parameters
| Parameter | Specification |
|---|---|
| Wavelength | CATV: 1550nm; PON: 1310/1490 & 1270/1577nm |
| Input Power | -10dBm ~ +10dBm (normal input 0dBm ~ +5dBm) |
| Output Power | 27dBm ~ 41dBm (WDM -1dBm) |
| Output Ports | SC: 16/32/64; LC: 32/64/128 |
| Output Power Per Port | 10~23dBm or customized |
| Noise Figure | < 6.0dB (Pin=0dB) |
| Polarization Dependent Loss (PDL) | < 0.3dB |
| Polarization Dependent Gain (PDG) | < 0.4dB |
| Polarization Mode Dispersion (PMD) | < 0.3dB |
| Pump Leakage Power | < -30dBm |
| Return Loss | ≥ 56dB |
| Optical Connector | SC/APC & SC/UPC & LC/APC & LC/UPC |
5. Other Parameters
| Parameter | Specification |
|---|---|
| Power Supply Voltage | AC 110/220V or DC 48V |
| Power Consumption | ≤80W |
| Operating Temperature | -5°C ~ +42°C |
| Storage Temperature | -40°C ~ +80°C |
| Operating Relative Humidity | 5~95% |
| Product Net Dimensions | 1U: 380(W) × 482(L) × 44(H) mm; 2U: 468(L) × 480(W) × 89(H) mm |
| Package Dimensions | 1U: 600(L) × 515(W) × 135(H) mm; 2U: 650(L) × 650(W) × 210(H) mm |
6. Applications
- CATV Medium and Large City Fiber Transmission Networks: Provides core optical amplification nodes for large-scale FTTH coverage.
- FTTH / FTTB: Optical signal distribution and amplification for fiber-to-the-home and fiber-to-the-building.
- DWDM Systems: Supports flat-gain DWDM multi-wavelength amplification applications.
- CWDM Single-Fiber Triple-Wavelength: Single-wavelength CATV transmission and CWDM triple-wavelength multiplexing scenarios.
- DBS / MMDS: Direct Broadcast Satellite and Multimedia Multipoint Distribution Systems.
- FTTX PON: Supports EPON/GPON 1310/1490/1577nm wavelength multiplexing.
7. Ordering Information
| Model | Product Description |
|---|---|
| SPOA-51EYAXU | High power Er/Yb Doped Fiber Amplifier, 1550nm, output 27~41dBm, 1U/2U rack, AC/DC dual power supply |
For customized services (output power, port count, connector type, etc.), please contact SOPTO via the following:
Email: info@s-opto.com
Website: www.s-opto.com
8. Glossary
| Abbreviation | Full Name | Definition |
|---|---|---|
| EDFA | Erbium-Doped Fiber Amplifier | An optical amplifier that uses stimulated emission of erbium ions in the 1550nm band to amplify optical signals. |
| EYDFA | Er/Yb Doped Fiber Amplifier | An erbium/ytterbium co-doped fiber amplifier that utilizes the ytterbium sensitization effect to improve pump efficiency and output power. |
| APC | Automatic Power Control | Stabilizes laser output power through a feedback loop. |
| ACC | Automatic Current Control | Stabilizes laser drive current through a feedback loop. |
| ATC | Automatic Temperature Control | Maintains stable laser operating temperature through TEC control. |
| CATV | Cable Television | Cable television network, where fiber amplifiers are used for optical signal distribution and amplification in transmission networks. |
| CNR | Carrier-to-Noise Ratio | An important metric for evaluating CATV signal quality. |
| MER | Modulation Error Ratio | A metric for evaluating digital television signal quality. |
| PON | Passive Optical Network | A passive optical network, such as EPON/GPON, that enables data, voice, and video transmission over a shared fiber through wavelength division multiplexing. |
| OSW | Optical Switch | An optical switch used for optical path switching, dynamically selecting routes among multiple fiber links. |
| SNMP | Simple Network Management Protocol | A protocol for remote monitoring and management of network devices. |
