A1611A/B DFB Laser Modules
Data Sheet, Rev. 4
June 2001
Features
OC-48 pinout compatible
Negative bias
112 channel loading available
Meets
Telcordia Technologies
* 468 specifications
Output power, up to 13 mW
Applications
1310 forw ard path
Broadcast and narrowcast networks
*
Telcordia Technologies
is a trademark of Telcordia Technologies ,
Inc.
Description
The A1611A/B 1310 nm DFB laser modules are
designed for broadcast and narrowcast CATV appli-
cations. The modules are highly linear , OC-48 pinout-
compatible devices available with standard power
output up to 13 mW.
The A1611A/B module is optimized to assist OEM
customers with 1310 nm CATV transmitter design. Its
range of standard-to-enhanced performance specifi-
cations and available output power ensures the flexi-
bility a CATV system designer needs to accurately
and cost-effectively address the requirements of any
forward-path application.
2
Data Sheet, Rev. 4
A1611A/B DFB Laser Modules June 2001
Agere Systems Inc.
Absolute Maximum Ratings
Stresses in excess of the absolute maximum ratings can cause permanent damage to the device. These are abso-
lute stress ratings only. Functional operation of the device is not implied at these or any other conditions in excess
of those given in the operational sections of the data sheet. Exposure to absolute maximum ratings for extended
periods can adversely affect device reliability.
Electrical/Optical Characteristics
* OMI = 2.8% min, 112 unmodulated NTSC channels, through fiber, up to 20 mW output power.
Parameter Symbol Condition Min Max Unit
Operating Case Temperature
Range TCIF = IOP –20 65 °C
Storage Case Temperature Range Tstg –40 70 °C
Lase r Forward Bias 120 mA
Reverse Voltage (Laser) VR——2V
Reverse Voltage Photodiode VRPD ——10V
TEC Current ITEC –20 °C < TC < 65 °C,
TOP = 25 °C,
IF = 100 mA
—1.5A
Table 1. Electrical and Optical Characteristics
Parameter Symbol Condition Min Typ Max Unit
Wa velength λOP IF = IOP
, T = TOP 1300 1310 1320 nm
Optic al Output Power POIF = IOP 4—13mW
Optical Isolation ISO T OP = 25 °C 30 dB
Side Mode Suppression
Ratio SMSR IF = IOP 30 dB
Threshold Current ITH 25 °C , BOL 30 mA
Operating Current IOP BOL 65 120 mA
Monitor Operating Current IMON IOP = 0 mA 10 200 µA/mW
Thermistor Resistance RTH TOP = 25 °C 10 ± 1 @ 25 °C k
Thermisto r Tem peratur e
Coefficient TCTH TOP = 25 °C –4.4 @ 25 °C %/°C
Table 2. RF Characteristics
Parameter Symbol Condition Min Typ Max Unit
Frequency Range F 20 860 MHz
Frequency Response |S21| IF = 60 mA,
20 MHz—860 MHz,
TOP = 25 °C
—± 0.5 dB
Carrier-to-Noise Ratio*CNR 51 dB
Composite Second Order
1611A
1611B
CSO
57
60
Composite Triple Beat CTB 66 dB
Relative Intensity Noise RIN < –155 dB/Hz
3
Agere Systems Inc.
Data Shee t, Rev. 4
June 2001 A1611A/B DFB Laser Modules
Electrical Schematics
Figure 1. A1611A/B Laser Schematic
Figure 2. A1611A/B Circuit Schematic
1
2
3
4
5
6
7
14
13
12
11
10
9
8
CASE
GROUND
NC
(+)
(–)
(+)
(–)
TEC
(–)
(+)
CASE
GROUND
NC
ISOLATOR
(+)
1-1233(F)
1-1234(F)
1
2
3
4
5
6
7
14
13
12
11
10
9
8
THERMISTOR
TEC (–)
MPC CATHODE
NC
THERMISTOR
dc LAS ER
BIAS
MPD ANODE
CASE GROUND
TEC (+)
CASE
GROUND
CASE
GROUND
MPC CATHODENC
LASER
COMMON (+ )
LASER
MODULATION (–)
LASER
COMMON (+ ) 39 nH
200
0.01
µ
f
3.3
µ
H
1000 pf
1000 pf
0.01
µ
f
0.01
µ
f
SEE
SEE
3A AN D 3B
FIGURES
FIGURE 4
4
4
Data Sheet, Rev. 4
A1611A/B DFB Laser Modules June 2001
Agere Systems Inc.
Electrical Schematics (continued)
Figure 3a. Impedance-Matched Configuration
Figure 3b. Resistive-Matched Configuration
C7
1 pF— 0.01
µ
f0.01
µ
f
VSWR
T1*
3:5
2
3
0.5 pF—2.5 pF
SEE PIN 12,
FIGURE 2
0.01
µ
f
FREQUENCY
RESPONSE
*T1 (75
) 3: 5.
5 pF
1-1238F.a
SEE PIN 12,
FIGURE 2
37.5
R1
37.5
R2
1-1238F.b
Note: When ordering the dc set, the following boards are included: alarm board, 9108-004; TEC board, 9028-004; constant current, 9383-004.
Figure 4. dc Set (Agere Systems-Supplied Option)
CONSTANT ALARM
TEC
J2
1 THERMISTOR
2 THERMISTOR
3 dc LASER BIAS
4 MPD ANODE (CASE GROUND)
5 MPC CATHODE
6 TEC (+)
7 TEC (–)
8 GND
9 GND
10 GND
1
2
3
4
5
6
7
THERMISTOR
TEC (–)
MPC CATHODE
THERMISTOR
dc LASER
BIAS
MPD ANODE
CASE GROUND
TEC (+)
MPC CATHODE
39 nH
200
0.01
µ
f
3.3
µ
H
1000 pf
1000 pf
0.01
µ
f
0.01
µ
f
1-1238F.c
5
Agere Systems Inc.
Data Shee t, Rev. 4
June 2001 A1611A/B DFB Laser Modules
Outline Diagram
Dimensions are in inches and (millimeters).
Pin Information
Table 3. Pin Descriptions
Pin No. Description
1Thermistor
2Thermistor
3 dc Laser Bias (–)
4 MPD Anode, Case Ground (–)
5 MPD Cathode (+)
6 Thermoelectric Cooler (+)
7 Thermoelectric Cooler (–)
8 Case Ground
9 Case Ground
10 NC
11 Laser Common (+)
12 Laser Modulation (–)
13 Laser Common (+)
14 NC
LOCATION FOR LABEL
INCLUDING SERIAL NUMBER
AND DATE CODE
(LABEL NOT SHOWN)
0.049
(1.2)
4 x ø 0.105 (2.7)
0.213
(5.4)
PIN 1
LEADS
0.030 (0.8) WIDE x 0.008 (0.2) THICK
0.120 (3.0) MINIMUM LENGTH
6 SPCS @ 0.100 (2.5)
0.250
(6.4)
0.190 ± 0.03
(5.0 ± 0.8)
0.078
(2.0)
0.215 ± 0.01
(5.5 ± 0.25) 0.248
(6.3)
0.040
(1.0)
0.350
(8.9)
0.500
(12.7)
0.820
(20.8)
1.025
(26.0)
1.180
(30.0)
0.365
(9.3)
0.700 ± 0.03
(18.0 ± 0.8)
1-1181(F).b
6
Data Sheet, Rev. 4
A1611A/B DFB Laser Modules June 2001
Agere Systems Inc.
Laser Safety Informatio n
Class IIIb Laser Product
FDA/CDRH Class IIIb laser product. All versions are Class IIIb laser products per CDRH, 21 CFR 1040 Laser
Safety requirements. All versions are Class 3B laser products per
IEC
* 60825-1:1993. The device has been classi-
fied with the FDA under an accession number to be determined.
This product complies with 21 CFR 1040.10 and 1040.11.
Single- mo de fibe r pigt ail
Wavelength = 1.3 µm
Maximum power = 30 mW
Because of size constraints, laser safety labeling (including the FDA Class IIIb label), is not affixed to the module
but attached to the outside of the shipping carton.
Product is not shipped with power supply.
Caution: Use of controls, adjustments, and procedures other than those specified herein may result in
hazardous laser radiation exp osure.
*
IEC
is a registered trademark of The Inter national Electrotechnical Commission.
DANGER
INVISIBLE LASER RADIATION
IS EMITTED FROM THE END
OF FIBER OR CONNECTOR
Avoid direct exposure to beam
Do not view beam directly with
optical in stru men ts
INVISIBLE LASER RADIATION EMITTED FROM END OF FIBER OR CONNECTOR
Avoid exposure to beam
Class 3B Laser Product IEC-60825M 1993 Max. Output: 30 m W Waveleng th: 1.3
µ
m
7
Agere Systems Inc.
Data Shee t, Rev. 4
June 2001 A1611A/B DFB Laser Modules
Ordering Information
Ordering Code Definitions
* For additional ordering information, please contact an Agere Systems accou nt manager at OPTO West, 1-800-362-3891 (for sales staff,
please press option 2).
Field Description
Family N a me
Analog 1310 nm, DFB, Laser
Distortion Performance
AA = Standard Performance
WW = W ir el e s s
Frequency Plan
D2 = 110 Channel
08 = 8 mW
10 = 10 m W
13 = 13 m W
A1611 AA D1 E1 04
BB = Enhanced Performance
PA = PAL 60 Tested
D4 = 60 Channel
D1 = 80 Channel
04 = 4 mW
06 = 6 mW
Optical Connector
E1 = FC/APC
E2 = SC/APC
E3 = None (No connector)
Optical Power
N = None (Wireless)
For additional informatio n, co nta ct you r Agere Systems Account Mana ger or the following:
INTERNET: http://www.agere.com
E-MAIL: docmaster@micro.lucent.com
N. AMERICA: Agere Systems Inc., 555 Union Boulevard, Room 30L- 15 P-BA, Allentown, PA 18109-3286
1-800-372-2447, FAX 610-712-4106 (I n CANA DA: 1-800-553-2448, FAX 610-712-4106)
ASIA PACIFIC: Agere Systems Singa pore Pte. Ltd., 77 Science Park Drive, #03-18 Cintech III, Singapore 118 256
Tel. (65) 778 8833, FAX (65) 777 7495
CHINA: Agere Systems (Shanghai) Co., Ltd., 33/F Jin Mao Tower, 88 Century Boulevard Pudong, Shanghai 2 0012 1 PRC
Tel. (86) 21 50471212, FAX (86) 21 50472266
JAPAN: Agere Systems Japan Ltd., 7-18, Higashi-Gotan da 2-c home, Shinagawa-ku, Tokyo 141, Japan
Tel. (81) 3 5421 1600, FAX (81) 3 5421 1700
EUROPE: Data Requests: DATALINE: Tel. (44) 7000 582 368, FAX (44) 1189 328 148
Technical Inquiries: OPTOELECTRONICS MARKETING: (44) 1344 865 900 (Ascot UK)
Agere Systems Inc. reserves the right to make changes to the product(s) or information contained herein without notice. No liability is assumed as a result of their use or application.
Copyright © 2001 Agere Systems Inc.
All Rights Reserved
June 2001
DS00-290OPTO-4 (Replaces DS00-290OPTO -3)
Data Sheet, Rev. 4
A1611A/B DFB Laser Modules June 2001