XINHAO EDFA-1550-1×27-HP-1U, EDFA-1550-1×28-HP-1U, EDFA-1550-1×29-HP-1U, EDFA-1550-1×30-HP-1U, EDFA-1550-1×31-HP-1U User Manual

EDFA-1550-X x X-HP-1U

High Power Optical Amplifier

USER GUIDE

HANGZHOU XINHAO TECHNOLOGY CO., LTD

2014.9(V6.52)

CONTENT

1. PRODUCT DESCRIPTION………………………………..1

2. PRODUCT FEATURE……………………………………….1

3. APPLICATION……………………………………………….2

4. PRODUCT STRUCTURE DIAGRAM…………………….2

5. TECHNICAL PARAMETER………………………………..

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6. OPERATION INSTRUCTION …………………………….5

7. NETWORK MANAGEMENT APPLICATION………….8

8. NOTES ABOUT OPTICAL CONNECTION…………..10

9. OTHER NOTE……………………………………………….11

10. SOPE OF PRODUCT WARRANTY……………………11

1. PRODUCT DESCRIPTION

Erbium-doped fiber amplifier (EDFA) has advantages of low no ise, high gain, wide
bandwidth, efficie nt p u mp and stable working condition etc. It is used in CATV system
widely.
As the transmitting nodes in the CATV system increase constantly, fiber to the home
(FTTH) and fiber to t he building ( FTTB) are popula r. When the EDF A is used to cascade d
amplification in the CATV system, the C/N deterioration is serious, so the EDFA must
have high saturated output power, low distortion, while the saturated output power of
EDFA is usually between 13dBm and 23dBm, output power limit is about 27dBm. In
addition, the gain fiber of EDFA is single-mode and single-clad fiber, pump is directly
coupled into fiber core, while fiber core is very small, it is required the pump is
single-mode.
The output power of single-mode semi-conductor laser is just several hundred’s mW,
and it is limited by pump area, high pow e r pu mp ca n’t be couple d, so it has a serious
effect on the output of fiber laser. In the face of this kind of situation, an international
new double-clad fiber has been developed. It takes advantage of envelope pump
technology, w hich overco mes shortco mings of the single-mode fiber, and makes outp ut
power increased one to two orders of magnitude, and promotes the development of
high-power fiber amplifier. The facto ry o v e rco me s m ulti ple tech ni c al diff ic ulties, and
then developing erbium ytterbium co -doped double-clad fiber amplifier which is fit to
CATV system to adapt current require of FTTH and FTTB.
This series of products produced by JDSU and Lumics etc---the famous brand
semiconductor fi rms as the pu mpin g sou rce. In the inte rior o f th e m a chine is eq uip ped
with the light power export stable circuit and laser thermoelectric cooling device
temperature stability control circuit to ensure optimal machine performance and
long-life laser stability. The microproce ssor software mo nitors the lasers’ working state,
the Digital Panel (VFD) displays the operating parameters. Once the laser operating
parameters deviate from the permissible range set by the software, micro-processing
will automatically turn off laser power, red light goes on to warn, digital panel prompts
cause of trouble s., a detailed report o f the device par ameters please read "instruction s."

2. PRODUCT FEATURE

2.1 High Quality

Adopt multimode large power pump laser, power is optimized reasonably by software,
and can most unlimite d reduce N F of EDF A, it is compar able wit h EDF A. The fe ature can
make system achieve excellent CNR.

2.2 Reliability

19” 1U standard rack, built-in high-performance doub le switching power supply, it can
work at 85 ~ 265V AC City Network Voltage, As well as an optional D C48V power suppl y
(reservations required); Chassis cooling can be autom ati c co n trol by tem pe rature.

2.3 Intuitive

The pump laser is the most expensive machine components, machine equipped with
microprocessor monitors the working state of the laser and the LCD displays the

1

operating parameters.

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.

2.5 Power Supply

Double hot pluggable power supply: switching power supply is pluggable type with
aluminum pro fi le str uc tural, it helps greatly to cooling and replacement.
Besides, it can also make double power supply cold-heat backup.

2.6 Adjustable Output Power

It can adjust the range of output optical power (downwards -3dB), it is required
specification when user orders.

2.7 High output power
The maximum output power can up to 6W(33dBm)

2.8 Integrate WDM

Some models can integrate WDM, it can convenience to be used in GPON and EPON.

3. APPLICATION

3.1 Single-mode fiber 1550 amplification network

3.2 FTTH Network

3.3 CATV Network

4. PRODUCT STRUCTURE DIAGRAM

4.1 Block Diagram

2

4.2 Block Diagram of Integrated WDM

WD1543

WD1543

LTEDFA-1550

C

R

P

PON

131 0nm

1550nm

149 0nm

4.3 Front/Back Panel Drawing

5. TECHNICAL PARAMETERS

5.1 Technical Parameters

Item Unit Technical Parameter Remark

Operating bandwidth nm 1540- 1565

Optical input power range dBm -5- +10

Suggested optical input power

0 - +3dBm

Noise Figure(NF) dB 3.8~5.5 +3dBm@1550nm

Return loss

Input dB ≥ 45
Output dB ≥ 45

Pump leakage power

Input dBm ≤-30
Output dBm ≤-30

Gain flatness dB

＜±0.3

Optical output power stability dB

＜±0.5

Polarizati on Sensitivity dB

＜0.2

Polarizati on mode dispersion ps

＜0.5
Optical connector(IN/OUT) FC/APC or SC/APC or E2000
Work ing pump quantity pcs 1~3

3