The HT6800-OA is a dual-channel EDFA optical amplifier card for the HT6800 DCI DWDM Optical Transmission System. Supporting both Booster Amplifier (BA) and Pre-Amplifier (PA) configurations in a single module, it delivers low-noise, high-gain amplification with AGC, APC, and ACC working modes. Equipped with OSC, MON, and OTDR interfaces. Occupies 2 slots in the HT6800 chassis.
Maintains a constant gain level regardless of input power variations, ideal for multi-span networks with fluctuating input.
Regulates output power to a fixed target value, ensuring consistent launch power into each fiber span.
Fixes the pump laser drive current, providing stable operation for specialized amplification scenarios.
Single card supports two independent amplifier units (BA/PA for OA, or 2×LA for OLA) in 2 chassis slots, maximizing density and flexibility.
Typical noise figure of 5.0 dB with excellent gain flatness of ≤1.0 dB across the full C-band operating wavelength range.
Gain adjustable from 8 to 33 dB with VOA support for ±5 dB fine-tuning, covering booster, pre-amplifier, and in-line amplifier use cases.
Supports OSC 1510nm port for remote network management and OTDR 1625nm interface for fiber fault detection and span characterization.
Dedicated MON port provides real-time optical power monitoring for both input and output signals without interrupting the main signal path.
Three independent working modes — Automatic Gain Control, Automatic Power Control, and Automatic Current Control — for flexible network deployment.
| Optical Performance | |
| Operating Wavelength | 1528 nm ~ 1565 nm (C-band) |
| Output Optical Power | Up to +20 dBm (typical) |
| Gain Range |
Min: 8 dB
→
Max: 33 dB
|
| Input Power (BA) | -10 dBm (typical) |
| Input Power (PA / LA) | Maximum input − 29 dBm |
| Noise Figure | ≤5.0 dB (typical) |
| Gain Flatness | ≤1.0 dB |
| Input Threshold | -34 dBm (adjustable) |
| VOA Adjustment Range | ±5 dB |
| Optical Characteristics | |
| Polarization Dependent Loss | ≤0.3 dB |
| Polarization Dependent Gain | ≤0.4 dB |
| Polarization Mode Dispersion | ≤0.5 ps |
| Pump Leakage Current | -29 dBm |
| Return Loss | ≥45 dB |
| Working Modes | |
| AGC Mode | Automatic Gain Control — adjustable constant gain |
| APC Mode | Automatic Power Control — adjustable constant output power |
| ACC Mode | Automatic Current Control — adjustable pump current |
| Signal Ports | |
| SIG Port | Main signal IN / OUT (C-band, 1528–1565 nm) |
| LINE Port | Line side IN / OUT connection |
| Monitoring Ports | |
| MON 1 / 2 | Optical power monitoring tap ports (OUT) — real-time signal level monitoring |
| Management & Diagnostics | |
| OSC1 | OSC 1510 nm — Tx / Rx for remote network management monitoring |
| OTDR 1 / 2 | OTDR 1625 nm interface — fiber fault detection and span characterization |
| Chassis | |
| Slot Usage | 2 Slots (HT6800 series chassis) |
| Compatible Chassis | HT6800 series (supports mixed insertion of electrical/optical layer cards) |
| Compatible Modules | HT6800-OLA, HT6800-800GTMUX1, HT6800-400GTMUX, HT6800-WSS09, HT6800-OTDR, HT6800-OCM |
| Physical Dimensions | |
| Width | 216 mm |
| Depth | 254 mm |
| Height | 42 mm |
| Environmental Specifications | |
| Working Temperature | -10°C ~ 60°C |
| Storage Temperature | -40°C ~ 80°C |
| Relative Humidity | 5% ~ 95% (no condensation) |
| Power | |
| Max Power Dissipation | ≤30W |
