ALEA FWAP-1550H series Manual do utilizador - Página 4
Procurar online ou descarregar pdf Manual do utilizador para Amplificador ALEA FWAP-1550H series. ALEA FWAP-1550H series 12 páginas. Pon & catv wdm edfa
Imprimir página1．PRODUCTION DESCRIPTION
1.1 Introduction
FWAP-1550H series EYDFA optical amplifier combiner is the latest equipment of optical
transmitting system for PON+CATV FTTH/FTTP. It realizes the combination function of OLT PON
and CATV 1550nm after optical signal is amplified. In detail, there is one way CATV input plus
16/32/64 routes PON signal in and the 16/32/64 routes which have 1490+1310+1550nm
combined output 1550nm with 30 to 45dBm total power. This equipment is well compatible to the
OLT/ONU of HUAWEI, ZTE, FiberHome etc and no data lost which owns high cost performance.
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 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 system to fit the requirement of FTTH and FTTB after conquer many
technical difficulty.
This serious product adopts JDSU,ⅡⅥ，LUMENTUM 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"3U standard case, built-in high performance external modular
switching power supply, operating under AC90 to 255V, optional DC48V power supply (pre-order)
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User Manual