CATV EDFA FWA-1550H2U

CATV EDFA FWA-1550H2U

FWA-1550H series EYDFA optical amplifier is the latest equipment of optical transmitting system for CATV FTTH/FTTP.

In detail, there is one way CATV input, output 1550nm with 2/4/8/16/32/64ports (optional).

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 13~23dBm (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 three years’ research, high power ytterbium-erbium co-doped double-cladding fiber amplifier was developed to fit the requirement of FTTH/FTTB after conquer many technical difficulty.

This serious product adopts JDSU, Lumics, 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).

FEATURES

• 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.

• Reliability: adoption of 19″2U standard case, built-in high performance external modular switching power supply, operating under AC165 to 265V, optional DC48V power supply (pre-order) hot-plugging supported, automatic temperature control case heat dissipation with dual power cold&hot backup.

• Intuitive: Microprocessor monitors operating status of pump laser which is the most valuable part of the equipment, operating parameters show on LCD display.

• Network Management: Optional type status monitoring transponder certainly satisfy

• national, SCTE, HMS, WEB standard, it realizes network management monitoring function. Equipment Specification

• Adjustable Ouput Power: The equipment is advanced designed which satisfies bigger range of adjustment from lower to -2dBm (special offer).

• High Power Output: Combined output power has maximum to 30~40dBm and multiple output configuration is avaliable for users requirement.

• WDM Insertion: It is available to integrate FWDM module if user need which is convenient when combines GPON, EPON.

CATV EDFA FWA-1550H2U

Comment：

• Optical Link Test provides link index by measuring optical transmitter FWT-1550H-2X7 and receiver FWR-8610G/W.
• The main performance index above accords with GY/T 184-2002 CATV analog optical amplifier technical requirement and measuring method

CATV EDFA FWA-1550H2U

• Over-long trunk with low-input
• AM CATV
• Digital CATV
• DBS & MMDS
• FTTx PON
• Laboratory application