Fibre Easy Communication Service Limited
Audio/video/data/telephone optical multiplexer E1+Ethernet+Data PDH MUX FTTH WDM PON EDFA /CATV EDFA CATV 1310nm/1550nm optical transmitter WDM/splitter/AGC optical receiver Media converter / protocol
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Fiber transmission equipment of optical amplifier GEPON WDM Combiner
1550nm high power 32port PON EDFA
Overview
WCE-1550H-32X19 Series WDM EDFA Combiner, High power Erbium Doped Fiber Amplifier, it is the core equipment of three of one net in optical transmitter system, input 8 ports PON+1port CATV and output 8 ports combined 1550/1490/1310nm. The combined optical output power: 15dBm. plug-in dual power supply, achieved the function of OLT and CATV 1550nm optical single combined and amplify, having high cost performance value.(Erbium Doped Fiber Amplifier) is a representative one in the optical amplifier. As the EDFA’s wavelength is 1550nm, it is in line with the low-loss band of fiber and its technology has been relatively mature, so widely used. Erbium-doped fiber is the core components of the EDFA, it makes quartz optical fiber as matrix material, and incorporate a certain proportion of rare earth element erbium ions (Er3 +) in the core of a fiber. When certain amount of pump light is injected into the erbium-doped fiber, Er3 + have been excited from the low-energy level to the high energy level, due to Er3 + has a very short lifespan on the high energy level, and soon transit to a higher level by the form of a non-radiative, and form the population inversion distribution between this energy level and low-energy-level. Because the energy between these two energy levels is exactly equal to the photon energy of 1550nm, stimulated emission of 1550nm light can only occur, we can only enlarge 1550nm optical signal.
Features
1.2.1) High quality: adopt multimode large power pump laser, power is optimized reasonably by software, and can most unlimited reduce NF of EDFA, it is comparable with EDFA. The feature can make system achieve excellent CNR.
1.2.2) Reliability: The 19 "2U rack, built-in high-performance plug-in dual power supply, it can work at 85 ∽ 265Vac City Network Voltage, As well as an optional DC48V power supply (reservations required); chassis cooling can be automatic control by temperature.
1.2.3) Intuition: The pump laser is the most expensive machine components, machine equipped with microprocessor monitors the working state of the laser, the panel LCD window displays the operating parameters.
1.2.4) Network type: Select All-piece status monitoring transponder guarantees to meet the national standard and be compatible with the SCTE HMS standard, it enables network management to monitor capabilities.
1.2.5) The plug is draw-out type: switching power supply is draw-out type with aluminum profile structure, it helps greatly to cooling and replacement. Besides it can make dual supply cold-heat backup.
1.2.6) Adjustable output optical power: You can adjust the range of output optical power (downwards -3dB), it is required specification when user orders.
1.2.7) High output power: Matched output power maximum is 4W∽6W.
1.2.8) Some models can be integrated WDM, in GPON, EPON is more simple to use
Technical Indexes
|
Model Item |
WCE-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, SC/PC |
| Pump work quantity (N) | 4 |
| Saturated output power (dBm) | ≧19dBm |
| Power supplies (Vac) | 115~265(draw-out plug) |
| Power supplies (Vdc) | 48(draw-out plug)－optional |
| Operating temperature (℃) | 0~50 |
| 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 |