specification, which defines a uniform package, pin
function definitions, and common optical and
electrical characteristics.
The 57TM ELR features a unique design using a
directly modulated cooled laser with thermoelectric
cooler (TEC). This results in a very stable optical
output that is ideally suited for DWDM applications.
By using a directly modulated DWDM laser, the
57TM ELR provides 650 km reach at an extremely
economical price. The 57TM ELR also features
automatic extinction ratio (ER) control, which
maintains ER over the entire temperature range
and over the lifetime of the laser.
Key Features
•
MSA compatible
•
Directly modulated laser
•
DWDM 100 GHz channel spacing
•
±25 pm stability over temperature at BOL
•
Open frame or closed frame chassis options
•
Provides reaches up to 650 km with a maximum
2 dB dispersion penalty
Applications
•
High speed, long haul fiberoptic links for
voice, data, digital video, metropolitan area
networks, and wide area networks
Compliance
•
Telcordia GR-253-CORE
•
ITU-T G.957 and ITU-T G.958
2.5 Gb/s DWDM Transmitter
Module with Extended Long
Reach (650 km) | 2
Dimensions Diagram
(Open frame version shown below; specifications in inches [mm] unless otherwise noted.)
REFERENCE VIEW
.500±.005
[12.7]
.100
[2.54]
.024 MAX
[.61 MAX]
2.870±.020
[72.9]
2.590±.014
[65.8]
13
24
Ø .276 MAX
[Ø 7.0]
.312 MAX
[7.9]
1.077 REF
[27.4]
.193±.010
[4.9]
1.500±.015
[38.1]
.125 [3.18]
.100 [2.54]
M2.5 THREADS
0.16 [4.0] DEEP
4 PLACES
2.000±.020 1.700±.014
[43.2]
[50.8]
12
1
.750±.010
[19.1]
4X .220±.020
[5.6]
1.100
[27.9]
4X .210±.020
[5.3]
.937±.010
[23.8]
Pinout
Pin
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
Description
Ground
Laser power monitor
Laser bias monitor/Laser degrade alarm (optional)
Laser enable
Clock mode select
Ground
Wavelength deviation alarm
Async serial TX (factory use only)
Async serial RX (factory use only)
Ground (no wavelength selection option)
Ground
NIC
Supply voltage (5.0 V)
TEC supply voltage (3.3 V)
Ground
Data positive input
Ground
Data negative input
Ground
Clock positive input
Ground
Clock negative input
Ground
Supply voltage (5.0 V)
2.5 Gb/s DWDM Transmitter
Module with Extended Long
Reach (650 km) | 3
Optical Specifications
Parameter
Average optical power output
1
Optical output power overshoot after laser enable
Output power variation over temperature
Center wavelength range
Variation in center wavelength over temperature
including aging (EOL) 100 GHz
Shutdown optical power
Spectral width (full width at -20 dB)
2
Side-mode suppression ratio
1
Jitter generation (peak to peak)
3
Jitter generation (rms)
3
Extinction ratio (BOL)
4
57TM-Axxxx (260 km)
57TM-Bxxxx (400 km)
57TM-Cxxxx (650 km)
Eye mask of optical output
5, 6
Maximum return loss (optical)
Dispersion
57TM-Axxxx (260 km)
57TM-Bxxxx (400 km)
57TM-Cxxxx (650 km)
Path penalty
Symbol
P
AVG
P
ov
∆P
O
λ
C
∆λ
T
Psd
∆λ
20
SMSR
-
-
r
e
r
e
r
e
-
O
RL
Minimum
1 dBm
-
-0.5 dBm
1527.99 nm
-100 pm
-
-
30 dB
-
-
9.8 dB
9.8 dB
9.8 dB
-
-
-
P
-
-
Typical
3 dBm
-
-
-
-
-50 dBm
0.3 nm
-
-
-
10.2 dB
10.2 dB
10.2 dB
Meets SONET and ITU-T
-
-
-
-
-
Maximum
4 dBm
0.5 dB
0.5 dBm
1562.23 nm
100 pm
-40 dBm
0.5 nm
-
70 mUI
p-p
7 mUI
rms
-
-
-
24 dB
4600 ps/nm
7000 ps/nm
11375 ps/nm
2.0 dB
1. Output power definitions and measurement per ITU-T Recommendations G.957.
2. Full spectral width measured 20 dB down from the maximum of the central wavelength peak under fully modulated conditions.
3. Formatted OC-48 pattern with scrambled PRBS23 payload using an Agilent OmniBER as the optical source driving an external OC-48 optical receiver with CDR. The differential
data outputs of this optical receiver are used as the electrical inputs for the 57TM transmitter which optically drives the OmniBER receiver input to complete the jitter test circuit.
4. Ratio of logic 1 output power to logic 0 output under fully modulated conditions. Measured after a 100 GHz filter under modulation condition PRBS 2
23
- 1. This module
incorporates automatic extinction ratio control to compensate for any loss in the laser's slope efficiency over lifetime. The minimum EOL extinction ratio is specified as 8.2 dB to
allow for measurement tolerances and monitoring circuit variations over time.
5. GR-253-CORE, Synchronous Optical Network (SONET) Transport Systems: Common Generic Criteria for OC1, OC3, OC12, and OC48. Measured at end of life, over entire
operating temperature, power supply range, and measured into a 25 dB minimum optical return loss. A 5% guard band is required in order to guarantee performance at the
system level.
6. ITU-T recommendation G.957, Optical Interfaces for Equipment and Systems to the Synchronous Digital Hierarchy: STM1, STM4 and STM16.
2.5 Gb/s DWDM Transmitter
Module with Extended Long
Reach (650 km) | 4
Electrical Specifications
Parameter
Supply voltage
5 V power consumption (total)
TEC supply voltage
TEC supply current (75 °C case)
Input sensitivity data & clock voltage
1, 2
Laser power monitor voltage (pin 2)
3
Wavelength deviation alarm (pin 7)
Deactivated
Activated
WDA activation delay
WDA deactivation delay
WDA activation wavelength range
Shut down command
−
enable laser
4
Shut down command
−
disable laser
4
Clock select
−
clocked mode
4
Clock select
−
non-clocked mode
4
Response time to disable laser
Response time to enable laser
Electrical return loss
Clock (1 MHz - 2.2 GHz)
Clock (2.2 GHz - 2.8 GHz)
Data (1 MHz - 1.5 GHz)
Data (1.5 MHz - 2.5 GHz)
Clock and data differential skew
Clock and data rise time (20% - 80%)
Clock and data fall time (80% - 20%)
Clock duty cycle
Consecutive identical bits
Laser bias monitor output (pin 3)
5
Symbol
Vcc
Vtec
Sv
Minimum
4.75 Vdc
-
3.135 Vdc
-
0.3 V
p-p
200 mV
0 Vdc
2.4 Vdc
-
-
-100 pm
0 Vdc
2.0 Vdc
0 Vdc
2.0 Vdc
-
-
9 dB
13 dB
13 dB
9 dB
-
-
-
40%
-
0 mV
Typical
5 Vdc
1.5 W
3.3 Vdc
0.9 Amps
0.8 V
p-p
500 mV
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
50%
-
600 mV
Maximum
5.25 Vdc
2W
3.47 Vdc
1.5 Amps
1.6 V
p-p
1050 mV
0.4 Vdc
Vcc
50 ms
50 ms
100 pm
0.8 Vdc
Vcc
0.8 Vdc
Vcc
1 ms
200 ms
-
-
-
-
40 ps
150 ps
150 ps
60%
72 Bits
1000 mV
WDA
WDA
T
ORen
T
ORdis
T
ORen
V
E
V
D
V
E
V
D
t
dis
t
en
IRL(C)
IRL(C)
IRL(D)
IRL(D)
∆tin
Tr
Tf
Dd
CID
1. Internally AC coupled with 50
Ω
internal termination.
2. This sensitivity is achieved by applying at minimum either a 0.3 V
p-p
signal on one input while the other input is tied to ground or by applying two complementary 0.15 V
p-p
signal on both inputs.
3. Set at 500 mV ±50 mV at nominal output power and at BOL. The laser power monitor voltage will decrease in value by approximately ½ (compared to the BOL value) when the
laser's output power is reduced by 3 dB (compared to BOL power).
4. If left "open", the signal is pulled "low"/active internally.
5. Output conversion factor is 20 mV/mA (±5%) of laser bias current.
2.5 Gb/s DWDM Transmitter
Module with Extended Long
Reach (650 km) | 5
Ordering Information
For more information on this or other products and their availability, please contact your local JDS Uniphase account
manager or JDS Uniphase directly at 1-800-498-JDSU (5378) in North America and +800-5378-JDSU worldwide or via e-mail
at sales@jdsu.com.
Sample: 57TM-CAG59
57TM-
Code
A
B
C
Optical Power and
Channel Spacing
3 dBm, 4600 ps dispersion,
260 km, 100 GHz
3 dBm, 7000 ps dispersion,
400 km, 100 GHz
3 dBm, 11375 ps dispersion,
650 km, 100 GHz
Code
A
B
Temperature Range
-5 to 75 °C, open
frame housing
-5 to 75 °C, closed
frame housing,
pin 3 = laser bias
monitor
-5 to 75 °C, open
frame housing, with
heat sink
-5 to 75 °C, closed
frame housing, with
heat sink
-5 to 75 °C, closed
frame housing,
pin 3 = laser degrade
alarm
Code
D
G
J
K
M
T
Connector Type
FC/SPC, terminated
to 39±3.9"
SC/SPC, terminated
to 39±3.9"
MU-J, terminated to
39±3.9"
LC, terminated to
39±3.9"
MU, terminated to
39±3.9"
ST, terminated to
39±3.9"
Code
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
C-band Channels
Wavelength/Frequency
1562.23 nm/191.9 THz
1561.42 nm/192.0 THz
1560.61 nm/192.1 THz
1559.79 nm/192.2 THz
1558.98 nm/192.3 THz
1558.17 nm/192.4 THz
1557.36 nm/192.5 THz
1556.55 nm/192.6 THz
1555.75 nm/192.7 THz
1554.94 nm/192.8 THz
1554.13 nm/192.9 THz
1553.33 nm/193.0 THz
1552.52 nm/193.1 THz
1551.72 nm/193.2 THz
1550.92 nm/193.3 THz
1550.12 nm/193.4 THz
1549.32 nm/193.5 THz
1548.51 nm/193.6 THz
1547.72 nm/193.7 THz
1546.92 nm/193.8 THz
1546.12 nm/193.9 THz
1545.32 nm/194.0 THz
1544.53 nm/194.1 THz
1543.73 nm/194.2 THz
1542.94 nm/194.3 THz
1542.14 nm/194.4 THz
1541.35 nm/194.5 THz
1540.56 nm/194.6 THz
1539.77 nm/194.7 THz
1538.98 nm/194.8 THz
1538.19 nm/194.9 THz
1537.40 nm/195.0 THz
1536.61 nm/195.1 THz
1535.82 nm/195.2 THz
1535.04 nm/195.3 THz
1534.25 nm/195.4 THz
1533.47 nm/195.5 THz
1532.68 nm/195.6 THz
1531.90 nm/195.7 THz
1531.12 nm/195.8 THz
1530.33 nm/195.9 THz
1529.55 nm/196.0 THz
1528.77 nm/196.1 THz
C
D
E
Telcordia is a registered trademark of Telcordia Technologies Incorporated.
North America toll-free: 1-800-498-JDSU (5378)
Worldwide toll-free: +800-5378-JDSU
www.jdsu.com
All statements, technical information and recommendations related to the products herein are based upon information
believed to be reliable or accurate. However, the accuracy or completeness thereof is not guaranteed, and no responsibility
is assumed for any inaccuracies. The user assumes all risks and liability whatsoever in connection with the use of a product or
its application. JDS Uniphase reserves the right to change at any time without notice the design, specifications, function, fit or
form of its products described herein, including withdrawal at any time of a product offered for sale herein. JDS Uniphase
makes no representations that the products herein are free from any intellectual property claims of others. Please contact JDS
Uniphase for more information. JDS Uniphase and the JDS Uniphase logo are trademarks of JDS Uniphase Corporation. Other
trademarks are the property of their respective holders. Copyright JDS Uniphase Corporation. All rights reserved.
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