FINISAR DM200-02-2

Finisar
Product Specification
10Gb/s 200km Telecom CMLTM
Transmitter Optical Sub-Assembly (TOSA)
DM200-02-0/1/2
PRODUCT FEATURES
•
High Performance CMLTM
•
Supports multi-bit-rate application,
from 9.95Gb/s to 11.1Gb/s
•
Supports link length up to 200km
without DCM
•
0-3dBm modulated output power
•
Case temperature range -5°C to
75°C
APPLICATIONS
•
Supports application with and
without FEC
•
Metro, Regional and Long haul
DWDM application
•
TDM, DWDM single channel
•
SONET/SDH OC-192, STM-64
•
Covers ITU-T C- and L-band
channels (1527.773nm to
1605.744nm)
•
10G Ethernet
•
10X Fibre Channel
•
XFP, X2, Xenpak
Finisar’s DM200-02 transmitter optical sub-assembly (TOSA) employs proprietary Chirp
Managed Laser (CMLTM) technology and has been specifically designed to transmit
10Gb/s data over physical distances up to 200km. The module is comprised of a directlymodulated DFB laser chip and a co-packaged proprietary optical spectrum reshaper
(OSR) passive optical element. The OSR component also provides a frequency locking
function and allows operation on the ITU-T channels within ±2.5GHz with coverage
across both C-band and L-band for DWDM versions. Also included in this TOSA
package are 2 photo-detectors for power control and wavelength locking, together with 2
TECs for temperature stabilization. The miniature size of this TOSA ensures it suitable
for integration into XFP, X2, Xenpak and other transceiver modules. Key specifications
for the optical and electrical characteristics, physical requirements, environmental
conditions and reliability/quality requirements are detailed in this document.
Note: Long version of this document with more detailed optical and electrical parameter
specification is available upon request.
 Finisar Corporation –10-May-07
Rev_A
Page 1
DM200-01-0/1/2 CMLTM Butterfly Transmitter Product Specification – May 2007
Finisar
I. Internal Optical Layout
Isolator
PD2
L2
L1
Fibre stub
OSR
DFB
Isolator
TEC
Window
PD1
Beamsplitter
Figure 1
Figure 1. CML internal layout
The DM200-02 modules uses a 10Gb/s directly modulated DFB chip co-packaged with
an optical spectral re-shaper (OSR) element as shown in Figure 1. An optical isolator is
included between the DFB and the OSR while a beam-splitter component and 2
photodetectors are configured to allow frequency locking. Lens#1(L1) is used to
collimate the DFB laser output and pass the beam through the splitter and OSR, prior to
coupling into single-mode fiber using Lens#2 (L2). A second isolator is included in the
fiber pigtail to minimize the effect of external back-reflections on module performance.
II. Control Method
The schematic in Figure 2 shows the key components and control loops that are used to
operate the module. The output power of the DFB is monitored by photodetector PD1.
Photodetector PD2 monitors the back-reflection from the OSR. The photocurrent ratio
from the two detectors is used to lock the relative spectral locations of the laser and the
OSR via temperature control of the DFB using TEC#1. A second TEC (TEC#2) controls
the temperature of the OSR and locates the operating point of the OSR on the ITU grid
for DWDM applications.
 Finisar Corporation –10-May-07
Rev_A
Page 2
Finisar
DM200-01-0/1/2 CMLTM Butterfly Transmitter Product Specification – May 2007
Constant
Output Power
Constant Temperature
Modulation
Current
Bias
Current
Thermistor#2
Thermistor#1
DFB
PD1
OSR
PD2
TEC#1
TEC#2
Constant Photodetector
Ratio (locker)
Start Up Temperature
Figure 2: Control schematic for DM200-02 Module
III. Absolute Maximum Ratings
Table 1: Absolute maximum ratings
Item
Parameters
1. Storage Temperature
2. Heat Soldering Temperature
3. Returned Fiber Power
4. Laser Forward Current
5. Laser Reverse Voltage
6. PD Forward Current
7. PD Reverse Voltage
8. TEC Current
9. TEC Voltage
10. Transient Cooler Current
11. Tolerable External Reflection
12. Optical Return Loss
 Finisar Corporation –10-May-07
Conditions
on leads, 6 seconds max
CW, 1 second transient
Peak
Peak
CW
CW
DC
DC
1 sec
Rev_A
Min
-40
-1.9
-1.9
Max
85
260
13
200
2
1
2
1.9
1.8
1.9
-14
-27
Units
°C
°C
dBm
mA
V
mA
V
A
V
A
dB
dB
Page 3
DM200-01-0/1/2 CMLTM Butterfly Transmitter Product Specification – May 2007
Finisar
IV. Standard Operating Specifications
Table 2: Standard Operating Requirements
Min
Item Parameters
1.
Bit Rate
2.
Operating Case
Temperature Range
3.
Wavelength (SOL)
4.
Locked deviation from
ITU
5.
Modulated Output Power
(EOL)
6.
7.
8.
9.
10.
11.
12.
13.
Operating Drive current
(SOL)
Allowed Deviation from
SOL drive current over
life and temperature
Required Resolution of
Operating Drive Current
SMSR
Wavelength temperature
tuning coefficient
Wavelength current
tuning coefficient
Laser threshold current
Forward Bias Voltage
Typ
Max
Units
9.953/10.7
11.1
Gb/s
-5
75
2.5
GHz
EOLOT
0
3
dBm
SOL operation
condition to be
discussed.
70
100
mA
-15
20
%
0.09
35
dB
0.1
nm/°C
16. Module Input Impedance
50
18. Electrical input crossing
19.
20.
21.
22.
23.
Extinction Ratio
(EOLOT)
Optical crossing
S11
S21 (3dB BW)
Power dispersion Penalty
 Finisar Corporation –10-May-07
25
1.8
pm/m
A
mA
V
-135
dB/Hz
10
MHz
7
0.5
mA
40
2
Peak to Peak voltage,
Vpp
ITU-T wavelengths
defined in Tables 9
& 10
-2.5
Laser CW Linewidth
(FWHM)
17.
°C
ITU-T
Wavelength
14. RIN
15.
Comments
All the following
transmission
parameters are
tested at 9.95 or
10.7Gb/s
1
25
Ohms
1.5
80
9
tbc
Mask
10
tbc
2
Rev_A
360mA/4096 levels
0 to 10 GHz,
Measured before
OSR is installed
Measured before
OSR
Recommend use of
EML driver
technology
V
Into 50ohm
%
Customer must
provide adjustment
capability on
electrical driver
dB
BT Filter OFF
%
dB
GHz
dB
BT Filter OFF
tbc
Before OSR
Receiver threshold
Page 4
DM200-01-0/1/2 CMLTM Butterfly Transmitter Product Specification – May 2007
@ 30dB OSNR, 9.95Gbs,
BER=10-12, 3400ps/nm
(EOLOT)1
OSNR dispersion Penalty
24. @ BER=10-4, 10.7Gbs,
3400ps/nm (EOLOT) 1
2
dB
Finisar
optimized for
3400ps/nm, same
threshold used for
BB measurement
Receiver threshold
optimized at BB and
3400ps/nm
Note:
1. Please call Finisar to discuss the receiver configuration, including types of PIN/APD,
and power level into APD, and the type of CDRs are used. With FEC and some
CDRs incorporating EDC functions, >3400ps/nm transmission is possible.
V. Mechanical Details
Figure 3: TOSA Package Profile
 Finisar Corporation –10-May-07
Rev_A
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DM200-01-0/1/2 CMLTM Butterfly Transmitter Product Specification – May 2007
Finisar
Figure 4: TOSA Package Outline Dimensions
V.1 Flex Cables and Signal Connections
This TOSA has 2 flex cables. The rear flex cable has 9 connections including a high
speed ground-signal-ground coplanar waveguide, located in the middle of the cable, for
delivery of high speed data signals. The side flex has 4 connections for high current TEC
signals.
Table 8: Signal Connection Description
Pin
Description
1.
PD1 (-)
2.
Thermistor#1 (-)
3.
Common
4.
RF Ground/Laser Cathode
5.
RF Signal
6.
RF Ground/Laser Cathode
7.
Laser Anode for Bias Current
8.
PD2 (-)
9.
Thermistor#2 (-)
10.
TEC 1 (-)
 Finisar Corporation –10-May-07
Rev_A
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DM200-01-0/1/2 CMLTM Butterfly Transmitter Product Specification – May 2007
11.
12.
13.
Finisar
TEC 1 (+)
TEC 2 (-)
TEC 2 (+)
V.2 Connector Options
LC receptable is currently. SC receptable is possible. Please contact Finisar for request.
V.3 10Gb/s Signal Delivery - RF Connection
The RF connection is through the ground-signal-ground coplanar structure on the rear
flex cable.
VI. Wavelength Coverage
C-band
Table 9: DWDM Product Identification C-Band 100 GHz
Channel
Frequency
Wavelength
Channel
ID
(GHz)
(nm)
ID
9170
191700
1563.863
9400
9180
191800
1563.047
9410
9190
191900
1562.233
9420
9200
192000
1561.419
9430
9210
192100
1560.606
9440
9220
192200
1559.794
9450
9230
192300
1558.983
9460
9240
192400
1558.173
9470
9250
192500
1557.363
9480
9260
192600
1556.555
9490
9270
192700
1555.747
9500
9280
192800
1554.94
9510
9290
192900
1554.134
9520
9300
193000
1553.329
9530
9310
193100
1552.524
9540
9320
193200
1551.721
9550
9330
193300
1550.918
9560
9340
193400
1550.116
9570
9350
193500
1549.315
9580
9360
193600
1548.515
9590
9370
193700
1547.715
9600
9380
193800
1546.917
9610
9390
193900
1546.119
 Finisar Corporation –10-May-07
Rev_A
Frequency
(GHz)
194000
194100
194200
194300
194400
194500
194600
194700
194800
194900
195000
195100
195200
195300
195400
195500
195600
195700
195800
195900
196000
196100
Wavelength
(nm)
1545.322
1544.526
1543.73
1542.936
1542.142
1541.349
1540.557
1539.766
1538.976
1538.186
1537.397
1536.609
1535.822
1535.036
1534.25
1533.465
1532.681
1531.898
1531.116
1530.334
1529.553
1528.773
Page 7
Finisar
Table 10: DWDM Product Identification L-Band 100 GHz
Channel
Frequency
Wavelength
Channel
ID
(GHz)
(nm)
ID
8670
186700
1605.744
8920
8680
186800
1604.885
8930
8690
186900
1604.026
8940
8700
187000
1603.168
8950
8710
187100
1602.311
8960
8720
187200
1601.455
8970
8730
187300
1600.6
8980
8740
187400
1599.746
8990
8750
187500
1598.893
9000
8760
187600
1598.041
9010
8770
187700
1597.189
9020
8780
187800
1596.339
9030
8790
187900
1595.489
9040
8800
188000
1594.641
9050
8810
188100
1593.793
9060
8820
188200
1592.946
9070
8830
188300
1592.1
9080
8840
188400
1591.255
9090
8850
188500
1590.411
9100
8860
188600
1589.568
9110
8870
188700
1588.725
9120
8880
188800
1587.884
9130
8890
188900
1587.043
9140
8900
189000
1586.203
9150
8910
189100
1585.365
9160
Wavelength
(nm)
1584.527
1583.69
1582.854
1582.018
1581.184
1580.35
1579.518
1578.686
1577.855
1577.025
1576.196
1575.368
1574.54
1573.714
1572.888
1572.063
1571.239
1570.416
1569.594
1568.773
1567.952
1567.133
1566.314
1565.496
1564.679
L-band
DM200-01-0/1/2 CMLTM Butterfly Transmitter Product Specification – May 2007
Frequency
(GHz)
189200
189300
189400
189500
189600
189700
189800
189900
190000
190100
190200
190300
190400
190500
190600
190700
190800
190900
19100
191100
191200
191300
191400
191500
191600
VII. Quality and Reliability
Lifetime
The operating lifetime of the module is 15 years. The reliability target is 400 FITs mean
over 15 years to include random and wear out failures, valid for high-end of case
temperature range. All specifications apply over this period of time.
Qualification
The DM200-01 module has been qualified in accordance with the Telcordia standard GR468-CORE. The qualification report is available upon request.
 Finisar Corporation –10-May-07
Rev_A
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DM200-01-0/1/2 CMLTM Butterfly Transmitter Product Specification – May 2007
Finisar
Electro-Static Discharge (ESD)
The device meets the ESD Class 3 requirements of the Telcordia standard TR-NWT000870 Issue 1, dated February 1991.
VIII. Order Information
Product code
For the product specified in this document, the proper product code shall be:
DM200-02-1 (or -0, -2)-xxxx-0-RC-yyyy
This product code should be specified when placing a purchase order.
“01” indicates a butterfly box module as specified in this document.
“1” indicates the laser wavelength will be specified on 100GHz ITU grid as
specified in Table 9 and Table 10. If –“0” is specified, it can be a TDM version
with any wavelength within C or L band, but not guaranteed on ITU grids. –“2”
can also be specified for 50GHz ITU grid.
“xxxx” is the channel ID as specified in Table 9 and Table 10.
“0” indicates modulated output power range is between 0-3dBm. Please contact
Finisar if different power level is needed.
“RC” indicates the optical connector type is a receptable, currently an LC
receptable. If other type connector is required, please contact Finisar.
“yyyy” indicates any special customized request and need to be agreed with
Finisar prior to ordering
•
•
•
•
•
•
IX. Revision History
Revision
Date
A
10-May-2007
Description
•
Document created.
•
•
•
•
•
•
•
•
 Finisar Corporation –10-May-07
Rev_A
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DM200-01-0/1/2 CMLTM Butterfly Transmitter Product Specification – May 2007
Finisar
X. For More Information
Finisar Corporation
1389 Moffett Park Drive
Sunnyvale, CA 94089-1133
Tel. 1-408-548-1000
Fax 1-408-541-6138
[email protected]
www.finisar.com
 Finisar Corporation –10-May-07
Rev_A
Page 10