1. Production Description
1.1 Introduction
The series EYDFA optical amplifier combiner is the latest equipment of optical transmitting system for XGS-PON & CATV and SAT-TV FTTH/FTTP. It realizes the combination function of XGS-PON and 1550nm after optical signal is amplified. In detail, there is one way CATV and SAT-TV input plus 128 routes XGS-PON signal in and the 128 routes which have 1310/1490nm &1270/1577nm +1550nm combined output 1550nm with 27 to 49dBm total power. This equipment is well compatible to the OLT of HUAWEI, ZTE, FiberHome etc, and no data lost which owns high cost performance. The EDFA can be placed in a telecom style cabinet, namely fit into a 320mm tray. With the power supply socket, optical fiber ports and web management interface placed in the front panel, it facilitates wiring operations.
Ordinary erbium doped fiber amplifier (EDFA) has advantages of low noise, high gain, wider bandwidth, high efficient pumping and stable operating, which is widely used in CATV and SAT-TV system. However, along with the implement of fiber to the house (FTTH), system C/N will be worse significantly when EDFA uses as cascade amplification. Therefore, EDFA is required to produce high saturation output power and low distortion as shown as 13dBm to 23dBm (approximate. 27dBm limited) for EDFA saturated output power. Moreover, the gain fiber of EDFA is single mode and single packed fiber. Optic of pump is directly coupling into fiber but the diameter of fiber is very small therefore it requires single mode of pump optic. Semiconductor of single mode only supports hundreds milliwatt of output power and it is limited by the area of pump which makes high power pump optic cannot be coupling. It consequently causes serious output power of optical laser. In case, it develops double-cladding fiber internationally and solve the problem of listed weakness of single packed fiber which improves 1 to 2 level for output power. It then drives the development of high power optical amplifier. After several years' research, our company overcome multiple technical difficulties, high power ytterbium-erbium co-doped double-cladding fiber amplifier was developed for CATV and SAT-TV system to fit the requirement of FTTH and FTTB after conquer many technical difficulties.
This series product adopts LUMENTUM,IPG, etc. multimode high power pump laser as pump source and American OFS closed beam splitter as double-cladding synthesizer. Built-in stable optical power circuit and laser thermoelectricity freezer guarantees best performance and long life cycle operating. Microprocessor software monitors operating status of laser which shows on LCD. Once operating parameter of laser deviate from the range of set value, microprocessor will cut power supply of laser automatically and red light turn will turn on with alarm (prompting fault cause on LCD). Please refer to the following "Operation Instruction" for detailed report of equipment parameters.
1.2 Features
1.2.1 High Quality: Adoption of multimode high power pump laser and power is optimized by software which maximizes lower NF of EDFA rival to normal EDFA. It makes system get superior CNR through power optimize balancing technique.
1.2.2 Reliability: adoption of 19″5U standard case, built-in high performance external modular switching power supply, operating under AC90 to 250V, optional DC48V power supply (pre-order) hot-plugging supported, automatic temperature control case heat dissipation with dual power cold&hot backup.
1.2.3 Intuitive: Microprocessor monitors operating status of pump laser which is the most valuable part of the equipment, operating parameters show on LCD display.
1.2.4 Network Management: Optional type status monitoring transponder certainly satisfy national, SCTE, HMS, WEB standard, it realizes network management monitoring function.
1.2.5 Patented Product: 19"5U Rack only 320mm chassis depth, fits for small cabinet.
1.2.6 Plug-in EDFA module: the pluggable module integrates the laser controlling circuit, the optical path for amplification, and the XGS-PON WDM wavelength division multiplexer, which is easy for maintenance, network upgrading and troubleshooting.
1.2.7 High Power Output: Combined output power has maximum to 27~49dBm and multiple output configuration is available for user's requirement.
1.2.8 WDM Insertion: Achieving GPON, 10GPON, XGPON, XGSPON, NGPON2, GEPON, Ethernet PtP & Wavelength multiplexing of RF video (CATV) in FTTH xPON networks.
1.2.9 Connecting Safety Mode: To prevent the optical patch cord end face from being burnt when the optical output is connected, enable this mode to reduce the output power direct to 19dBm during connection. Once turn off this mode, it returns to the original set power.
1.2.10 Built in optical path selector(customized): CATV and SAT-TV optical signal has two way as A and B optical switch input,(OPT SWTTCH):auto(prefer)or manual(force) mode,auto mode uses path A in rule and switch to B as A is not satisfied followed path priority.
High Power 32 port 1550nm XPON XGS-PON NG-PON2 WDM EDFA CATV Combiner , CATV amplifier & Edfa
Technical Indexes
Model
Item |
FWAP-1550H-32X19 |
| Operating wavelength (nM) |
1545~1555 |
| Input optical power(dBm) |
-10~+10 |
| Nominal input optical power (dBm) |
+3 |
| Noise figure (dB) (+3 dBm,@1550nM) |
5.0~6.0 |
| Gain flatness(dB) |
<±0.3 |
| Stability of output optical power (dB) |
<±0.5 |
| Polarization sensitivity (dB) |
<0.2 |
| Polarization modal dispersion (ps) |
<0.5 |
| Optical connector(IN/OUT) |
SC/APC |
| Pump work quantity (N) |
4 |
| Saturated output power (dBm) |
>=20dBm |
| Power supplies (Vac) |
115~265(draw-out plug) |
| Power supplies (Vdc) |
48(draw-out plug)-optional |
| Operating temperature (ºC) |
0~65 |
| Size (mm) |
88×482.6×387 |
| WDM-PON with optical path |
|
| PON port operating wavelength (nm) |
1310/1490 |
| PON port insertion loss (dB) |
<1 |
| 1550 port insertion loss (dB) |
<0.5 |
If this model meets your interest, please let us have your specific inquiry, our quotation will be forwarded timely!
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