The product is an EDFA with highly stable output power. It utilises a stability pump laser along with advanced ATC (automatic temperature control) and AGC (automatic gain control) circuits as its core components, ensuring excellent reliability and consistent performance. Its distinctive optical circuit design guarantees superior optical characteristics. A high-precision, highly stable MPU system is integrated to deliver intelligent, user-friendly control, adjustment, and display functions.

The professionally designed GFF (gain flattening filter), combined with an optimised optical path design, achieves outstanding flatness and low noise. The system supports 40–80 channels with flatness above 35 nm. The optical circuit is specifically engineered for digital optical fibre communication systems, featuring:

  1. Low noise figure
  2. High-output booster and highly sensitive pre-amplifier to enhance system loss budget
  3. Wide input power range with easily adjustable output power

The dual power mixing and hot-swappable design significantly extend MTBF, while also allowing power system backup. An intelligent temperature control mechanism activates the fan only when module temperature exceeds 35℃, and turns it off below 30℃. This maintains excellent thermal stability, extends fan life, and works with a professional airflow design to further optimise temperature stability.

The intelligent network management system includes versatile interfaces — Ethernet, RS-485, and RS-232 — with open MIB support, ensuring seamless integration with all other network management platforms.

Front Panel

Back Panel

1. Features

This single-channel EDFA offers the following capabilities:

  • Low noise figure, typically below 4.5 dB

  • Excellent flatness, typically around 1.5 dB

  • Redundant hot-swappable power module; supports mixed input of 110/220 VAC and -48 VDC

  • Compatible with both 19-inch and 21-inch racks

  • Full C-Band coverage, supporting 40 or 80 channels

  • OLED display for system parameter monitoring and control, with LED indicators for alarm status

  • Supports Ethernet and RS232 connectivity via RJ45 interface

  • Network management interface with SNMP support over Ethernet

  • Optical output with AGC (Automatic Gain Control)

2. Technical Specifications

2.1 Environmental Requirements

Parameters Min. Max. Unit
Working Temperature -5 +60 ℃
Storage Temperature -40 +80 ℃
Humidity 5 85 %

2.2 Mechanical / Power/ Interface Characteristics

Parameters Min. Typ. Max. Unit
Size 1U H×D×W ≤ 44×236×483 mm
Weight — — 6 Kg
Power Consumption — — 18 W
Cooling Air-cooled fans
Power Supply 85/170 110/220 132/264 VAC
Interface RS-232, Ethernet

(1) Actual consumption depends on the output power and environment temperature. (2) 110VAC, 220VAC and -48VDC are optional.

2.3 Optical Specifications

2.3.1 Booster Amplifier

Parameter Min. Typ. Max. Units Remark
Wavelength Range 1529 1550 1561 nm —
Output Power — — 23 dBm —
Gain — — 30 dB —
Flatness — 1.0 1.5 dBm @typical gain
Input Power -15 — 5 dBm —
Output Power Stability — ±0.1 — dB —
NF (In=0dBm, λ=1550nm) — 5.0 5.5 dB @max output, typical gain
PMD (Polarization Mode Dispersion) — — 0.5 ps —
PDG (Polarization Dependent Gain) — — 0.3 dB —
RL (Optical Return Loss) 45 — — dB —
Pump Leakage at Input & Output — — -30 dBm —
Eye Safety Class 1M. Based on: (a) Pump Back Reflection (b) ASE in 1500–1520 band

3 System Interface

No. Function Remark
1 Mounting brackets Φ4
2 OLED Screen —
3 Press key —
4 Indicator light —
5 Optical interface LC/UPC
6 FAN —
7 Grounding Stud —
8 SNMP, RS232 communication with indicators SNMP V1, V2C
9/10 Power Supply 110VAC / -48VDC optional

4 Mechanical Dimensions

5 Order Information

Model Application Output Gain Power Interface
GA11A 1RU EDFA 4: C band DWDM
010: -10 dBm
000: 0 dBm
…
22: 22 dBm		 5: 5 dB
…
35: 35 dB		 33: dual 110~220 VAC
44: dual -48 VDC		 1: SC/UPC
2: SC/APC
3: FC/UPC
4: FC/APC
5: LC/UPC
6: LC/APC