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DWDM Rackmounted EDFA
1.
Scope
WZEDFA-SO-t-CW40-pp/Ggg(V)-(abc)-x-y is a family of gain-flattened unidirectional EDFA.
Its working wavelength is normally C-Band (1529~1561nm), special working wavelength range
can be discussed with WXZTE. Because of adopting optimal design of optical path, it can amplify
the C-Band signal with or w/o middle stage access (MSA), at fixed gain or variable gain, which
brings great flexibility for the network application. Besides, for adopting high quality GFF and
reasonable design of optical path, it achieves very good gain flatness and very low noise figure.
Optical supervisory channel (OSC) is optional function integrated in the rack. It can be dropped
/added outside, or bypass internal, or amplified by OSC OEO module.
The EDFA has the world's top class pump laser and erbium-doped optical fiber. Perfect AGC,
APC and ACC control, excellent design in ventilation and heat-dissipation ensure the long life and
high reliable work of pump laser. The laser will switch off automatically if optical power is
missing. RS232 and RJ45 offer serial commutation and SNMP network management port, which
make the remote control available.
2.
Features
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Operating wavelength: 1529~1561nm (Extended band is available)
Multi-working mode, AGC, APC,ACC
Gain, power can be adjusted by remote control
Transient control
ASE compensation at small signal
Excellent gain flatness and NF
Middle stage access, optional function
Output monitor port
OSC channel, dropped /added outside, bypass, optional function
OSC OEO amplification, optional function
Perfect RS232 communication interface and SNMP function
1U, 19’’ rack mounted
220VAC or -48VDC dual power supply, optional.
3.
Applications
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
DWDM Optical communication system, LH, ULH
Network protection or upgrade
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WuXi ZhongXing Optoelectronics Technology Co., Ltd.
4.
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Specification
Different part number has different specification. The part number refers to the order information
at chapter 8. Here some examples are for reference. Maybe actual application needs customized
specification; please contact WXZTE for further discussion.
4.1.
Optical specification
4.1.1.
Fixed gain amplifiers
EX1: booster, PN: WZEDFA-SO-B-CW40-18/G26-1-6
Item
Unit
Min.
Typ.
Max.
Note
Operation wavelength
nm
1529
Input power
dBm
-10
Gain
dB
26
Output power
dBm
18
Gain flatness
dB
2
All working temperature
Noise figure
dB
6.0
Input=-8dBm,Gain=26dB
Input threshold
dBm
1561
-8
0
-13
Can be adjusted
EX2: line amplifier, PN: WZEDFA-SO-L-CW40-20/G25-1-3
Item
Unit
Min.
Typ.
Max.
Note
Operation wavelength
nm
1529
1561
Input power
dBm
-33
-5
Gain
dB
Output power
dBm
Gain flatness
dB
2
All working temperature
Noise figure
dB
6.0
Input= -5dBm,Gain=25dB
Input threshold
dBm
25
-8
20
-33
Can be adjusted
EX3: Pre amplifier, PN: WZEDFA-SO-P-CW40-16/G16-1-3
Item
Unit
Min.
Operation wavelength
nm
1529
1561
Input power
dBm
-28
0
Gain
dB
Output power
dBm
Gain flatness
dB
2
All working temperature
Noise figure
dB
6.0
Input= 0dBm,Gain=16dB
Input threshold
dBm
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Typ.
Max.
Note
16
-12
-33
16
Can be adjusted
WuXi ZhongXing Optoelectronics Technology Co., Ltd.
4.1.2.
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Fixed gain amplifiers with MSA
EX4: Pre amplifier, PN: WZEDFA-SO-P-CW40-16/G20-00A-1-3
Item
Unit
Min.
Typ.
Max.
Note
Operation wavelength
nm
1529
Input power
dBm
-31
-4
-3
Total Gain
dB
19
20
21
+/-1dB adjustable
PreAmp gain
dB
17
18
19
+/-1dB adjustable
Booster gain
dB
PreAmp output power
dBm
Output power
dBm
Mid-access loss
dB
Gain flatness
dB
2
All working temperature
Noise figure
dB
7.0
Input=-4dBm,Total
Gain=20dB
Input threshold
dBm
1561
12
Fixed
14.5
-12
16
16.5
10
-31
Can be adjusted
EX5: Line amplifier, PN: WZEDFA-SO-L-CW40-20/G16-00C-1-3
Item
Unit
Min.
Operation wavelength
nm
1529
Input power
dBm
-23
4
5
Total Gain
dB
15
16
17
+/-1dB adjustable
PreAmp gain
dB
12
13
14
+/-1dB adjustable
Booster gain
dB
PreAmp output power
dBm
Output power
dBm
Mid-access loss
dB
Gain flatness
dB
2
All working temperature
Noise figure
dB
8.0
Input=4dBm,
Gain=16dB
Input threshold
dBm
4.1.3.
Typ.
Max.
Note
1561
15
Fixed
17.5
-8
20
20.5
12
00C means 12dB
-23
Can be adjusted
Variable gain amplifiers with MSA
EX6: Line amplifier, PN: WZEDFA-SO-L-CW40-20/G25V-00A-1-3
Item
Unit
Min.
Operation wavelength
nm
1529
Input power
dBm
-26
-5
0
Total Gain
dB
22
25
28
+/-3dB adjustable
PreAmp gain
dB
17
20
23
+/-3dB adjustable
Booster gain
dB
PreAmp output power
dBm
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Typ.
Max.
Note
1561
15
Fixed
15.5
Total
WuXi ZhongXing Optoelectronics Technology Co., Ltd.
Output power
dBm
Mid-access loss
dB
Gain flatness
dB
2
All working temperature
Noise figure
dB
8.0
Input=
-5dBm,
Gain=25dB
Input threshold
dBm
4.2.
4.2.1.
-6
20
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20.5
10
00A means 10dB
-28
Can be adjusted
General specification
Optical general specification
Item
Unit
Polarization dependence loss
dB
0.3
Polarization dependence gain
dB
0.4
Polarization mode dispersion
ps
0.5
Pump power leakage
dBm
-30
Return Loss
dB
Overshoot @ 3dB Add/Drop
dB
0.5
1
Undershoot@ 3dB Add/Drop
dB
0.5
1
Offset@ 3dB Add/Drop
dB
0.5
1
Settle time@ 3dB Add/Drop
ms
0.05
0.1
Overshoot @ 15dB Add/Drop
dB
1.5
2
Undershoot@ 15dB Add/Drop
dB
1.5
2
Offset@ 15dB Add/Drop
dB
0.5
1
Settle time@ 15dB Add/Drop
ms
0.5
1
4.2.2.
Total
Min.
Typ.
Max.
45
Note
UPC connector
Input rise/fall time is 100us
OSC specification (If there is no OSC channel, skip this chapter)
Optical supervisor channel is optional, it has three types. One is bypass, it means drop from EDFA
input and add at EDFA output. The second is Add/Drop outside. The third is OSC amplification by
OEO module. The three types are illustrated as below.
Type 1: Bypass
EDFA module
EDFA In
OSC Drop
OSC Add
Rack
Type 2: Add/Drop outside
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EDFA Out
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EDFA module
EDFA In
OSC Drop
Rack
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EDFA Out
OSC Add
Type 3: OSC amplification
EDFA module
EDFA In
OSC Drop
OSC OEO
EDFA Out
OSC Add
Rack
Item
Unit
Min.
Typ.
Max.
Note
OSC channel wavelength
nm
1507
1510
1513
Wavelength can be customized
OSC rate
MHz
2
155
<=155MHz
OEO Transmitter power
mW
Transmitter spectral width
nm
1
-20dB
OEO Receiver sensitivity
dBm
-38
λ=1510nm,155Mbps,
BER=10^-10@ PRBS=223-1
4.2.3.
1.0
1.5
-39
Alarms
Item
Trigger condition
Note
Input alarm
Input power less than threshold
Red is alarm
Output alarm
Output power less than threshold
Red is alarm
Pump Bias alarm
Pump bias greater than threshold
Red is alarm
Temperature alarm
Module temperature greater than threshold
Red is alarm
OSC channel alarm
OSC input power less than threshold
Red is alarm, if no OSC
transceiver, there is no alarm
4.2.4.
Other general specification
Item
Unit
Requirement
Note
SNMP network interface
RJ45
Serial interface
RS232
Cross
Power supply
V
AC 90~265; DC -48
Dual power supply optional
Power Consumption
W
≤30
Depends on optical output
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power
Operating temperature
˚C
-5~50
Storage temperature
˚C
-40~85
Operating relative humidity
RH%
5~95
Size
mm
482.6x245x43.6
Width x Depth x Height
SC/UPC
Other connector can be OK
Optical connector
5.
Mechanical drawing
The unit is mm.
The drawing and picture are just for reference.
482.6
465
ErbiumDoped Fiber Amplifier
PWR
IN
RUN
PUMP
OSC
31.8 43.6
OUT
TEMP
442
245
245
ETHERNET
RS232
ON
GND
ETHERNET
RS232
ETHERNET
RS232
-48V
FUSE3A
ON
GND
-48V
FUSE3A
OFF
OFF
FUSE3A~240V AC100-240V50/60Hz
FUSE3A~240V AC100-240V50/60Hz
ON
FUSE3A~240V AC100-240V50/60Hz
GND
-48V
FUSE3A
OFF
ETHERNET
RS232
ON
GND
-48V
FUSE3A
OFF
ETHERNET
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RS232
FUSE3A~240V AC100-240V50/60Hz
WuXi ZhongXing Optoelectronics Technology Co., Ltd.
6.
Ordering Information
WZEDFA - SO - t - CW40 - pp / Ggg (V) - (a b c) - x - y
t:
pp:
gg:
V:
type, B: Booster; L: line; P:Preamp
Output Power,Integer,dBm
Gain, Integer,dB
Variable gain, optional
a: OSC,optional, 0: No OSC; 1: Bypass; 2: OEO amplification; 3: Drop/Add
outside
b: OSC wavelength,optional, 0: No OSC; 1: 1510nm; 2: 1625nm; 3: 1590; 4:
1480nm
c: MSA loss,Hex number,dB, optional, A: 10dB; B: 11dB
x: Power supply, 1: 2DC--- dual DC; 2: 2AD--- AC & DC; 3: 2AC--- dual AC; 4:
1DC--- single DC; 5: 1AC--- single AC
y: Connector type, 1: FCUPC; 2: FCAPC; 3: SCUPC; 4: SCAPC; 5: LCUPC; 6:
LC/APC; 7: MUUPC; 8:E2000APC
Contact information:
Tel: +86-510-85347017(Tony), or 85347018(Emily), or 85347010(Sang Gui)
Fax: +86-510-85347020
Contact e-mail: liudai@wxzte.com, guisang@wxzte.com
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