Wideband DFB Laser Transmitters
Data Sheet
June 2001
Features
■High dynamic range
■Long distance communication
■10 MHz to 18 GHz bandwidth
■Built-in optical isolator, 1310 nm or 1550 nm
■Y2K compliant, CE certified
Applications
■Antenna remoting
■Cellular and PCS networks
■Military triband communications
■TT and C
Description
The distributed feedback (DFB) laser transmitters
provide exceptional performance f or linear fiber-optic
communications in very wide bandwidth applications.
Linear fiber optics developed by Agere Systems Inc.
are an excellent alternative to using coaxial cable
systems to transmit 10 MHz—18 GHz signals. They
offer significant improvements in reliability in wide-
band communication networks by transmitting the RF
signal in its original format. As a result of these prop-
erties, these wideband DFB laser transmitters pro-
vide significant improvements in signal quality for a
wide variety of applications, including antenna remot-
ing, timing and reference signal distribution, teleme-
try, measurement, and delay lines.
Wideband DFB lasers are available in several pack-
aging styles. The basic laser module can be inte-
grated into a complete transmitter, packaged either
as a flange-mount for extreme environments or as a
plug-in for integration with Agere Systems’ System
10000 rack-mountable chassis and power supplies.
Electronics within flange-mount and plug-in transmit-
ters control the laser temperature and dc bias current
and provide warnings whenever the temperature or
power deviates from their intended levels, thus pro-
viding a self-regulating, fully integrated wideband
product. These units provide high-quality noise per-
formance in sensitive optical links.
2Agere Systems Inc.
Data Sheet
Wideband DFB Laser Transmitters June 2001
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.
Characteristics
Specifications describe warranted performance. Typical values, indicated by “typ.,” provide expected levels of per-
formance, but are not guaranteed.
1. Specifications guaranteed when unit is connected to an optical path with retur n loss > 35 dB.
2. No RF input.
1. Plug-in products are powered with the 10990A rack-mount chassis and 10901A/B power supply.
2. For laser module dc requirements, contact an Agere Systems’ account manager for an OEM data sheet.
Parameter Symbol Min Max Unit
Operating Temperature Range of Baseplate:
Modules and Flange-mount
Plug-ins
TOP –40
–40 65
65 °C
°C
Storage Temperature Range:
Modules and Flange-mount
Plug-ins
Tstg –40
–20 85
65 °C
°C
RF Input Power:
Modules and Flange-mount
Plug-ins
PIN —
—20/60 s
20/60 s dBm
dBm
Table 1. Optical Characteristics1
Package Type Device Code
Module
Flange-mount Transmitter
Plug-in Transmitter
1540A
3540A
10340A
1541A
3541A
10341A
1541B
3541B
10341B
1541C
3541C
10341C
1541C-E05
3541C-E05
10341C-E18
1740A
3740A
10370A
1741A
3741A
10371A
Parameter Specifications
Wavelength 1310 nm
± 30 nm 1310 nm
± 30 nm 1310 nm
± 30 nm 1310 nm
± 30 nm 1310 nm
± 30 nm 1550 nm
± 30 nm 1550 nm
± 30 nm
Spectral Width, FWHM2,
Typ ., Max. 10 MHz 10 MHz 10 MHz 10 MHz 10 MHz 10 MHz 10 MHz
Optical Power:
Min.
Typ. 4 mW
7 mW 2.4 mW
5 mW 3 mW
6 mW 3 mW
6 mW 3 mW
6 mW 3 mW
—3 mW
—
Optic al Power St ab il ity vs.
Temperature ± 15% ± 15% ± 15% ± 15% ± 15% ± 15% ± 15%
dc Modulation Gain:
Min. (mW/mA)
Typ. (mW/mA) 0.10
0.16 0.06
0.12 0.06
0.1 0.06
0.1 0.06
0.1 0.05
—0.05
—
Table 2. dc Power Requirements for Flange-Mounts and Plug-ins1, 2
Pin No. Min Typ Max Max Ripple Current
1 14 V 15 V 16 V 100 mVp-p 0.3 A max
2 4.75 V 5 V +5.5 V 200 mVp-p 1.5 A max
3
Agere Systems Inc.
Data Sheet
June 2001 Wideband DFB Laser Transmitters
Characteristics (continued)
1. Specifications guaranteed when unit is connected to an optical path with return loss > 35 dB.
2. Peak to peak.
3. F or 18 GHz applications, 1541C/3541C/10341 are screened, tested and tuned for 18 GHz. This results in 3 dB minimum rolloff from 15 GHz
to 18 GHz.
4. Two carrier test.
5. No RF input.
6.
K-connector
is a trademark of Anritsu Company.
K-connector
s are SMA compatible.
Table 3. RF Parameters1
Package Type Device Code
Module
Flange-mount Tx
Plug-in Tx
1540A
3540A
10340A
1541A
3541A
10341A
1541B
3541B
10341B
1541C
3541C
10341C
1541C-E05
3541C-E05
10341C-E18
1740A
3740A
10370A
1741A
3741A
10371A
Parameter Specifications
Maximum Frequency 5 GHz 10 GHz 13 GHz 15 GHz 18 GHz 4 GHz 10 GHz
Minimum Frequency
Option -001 0.1 GHz
0.01 GHz 0.1 GHz
0.01 GHz 0.1 GHz
0.01 GHz 0.1 GHz
0.01 GHz 0.1 GHz
0.01 GHz 0.1 GHz
0.01 GHz 0.1 GHz
0.01 GHz
Amplitude Flatness2
Option -001 ± 2.0 dB
± 3.0 dB ± 2.5 dB
± 3.0 dB ± 3.0 dB
± 3.5 dB ± 3.0 dB
± 3.5 dB ± 3.0 dB3
± 3.5 dB3± 2.5 dB
± 3.0 dB ± 2.5 dB
± 3.0 dB
Input Impedance 50 Ω50 Ω50 Ω50 Ω50 Ω50 Ω50 Ω
Input VSWR 1.8 : 1 1.8 : 1 3.0 : 1 3.0 : 1 3.0 : 1 1.8 : 1 1.8 : 1
Input 1 dB Compression,
Typ. Min +13 dBM +13 dBM +20 dBM +20 dBM +20 dBM +13 dBM +13 dBM
Input Third Order
Intercept4, min.(dBm):
0.01 GHz —2.5 GHz
2.5 GHz—4 GHz
4 GHz—5 GHz
5 GHz—10 GHz
10 GHz—13 GHz
13 GHz—15 GHz
15 GHz—18 GHz
30
22
22
—
—
—
—
35
30
25
25
—
—
—
35
30
25
25
25
—
—
35
30
25
25
25
25
—
35
30
25
25
25
25
20
28
28
23
—
—
—
—
23
23
23
23
—
—
—
Noise Figure5 (dB):
0.01 GHz—1 GHz
1 GHz—2.5 GHz
2.5 GHz—3 GHz
3 GHz—4 GHz
4 GHz—5 GHz
5 GHz—6 GHz
6 GHz—10 GHz
10 GHz—13 GHz
13 GHz—15 GHz
15 GHz—18 GHz
44
48
59
59
59
—
—
—
—
—
—
44
49
49
49
48
49
59
—
—
—
—
44
44
44
49
49
49
54
59
—
—
—
44
44
44
49
49
49
54
59
59
—
—
44
44
44
49
49
49
54
59
59
59
—
56
56
56
56
—
—
—
—
—
—
—
56
56
56
56
56
58
62
—
—
—
—
RF Connector:
Laser Module
Flange-mount and
Plug-in
SMA (f)
SMA (f)
K-con-
nector
(f)6
SMA (f)
K-con-
nector
(f)6
SMA (f)
K-con-
nector
(f)6
SMA (f)
K-con-
nector
(f)6
SMA (f)
SMA (f)
SMA (f)
K-con-
nector
(f)6
SMA (f)
4
4Agere Systems Inc.
Data Sheet
Wideband DFB Laser Transmitters June 2001
Pin/Package Information
1. Open collector outputs.
Front Panel LEDs
■Power on
■Laser power stable
■Laser temperature stable
dc Moni to r Voltages
Photodiode current, pin 6: 1 V/mA, ± 2% accuracy (into
1 MΩ load). Proportional to
laser ou tput power.
Laser dc current, pin 8: 1 V/mA, ± 2% accuracy (into
1 MΩ load).
Alarm Circuits
The alarms are open-collector outputs capable of sink-
ing 20 mA when active and withstanding 15 V when off .
Low optical power, pin 7: sinks current when power is
below 90% of setpoint.
Laser temperature, pin 9: sinks current when laser
internal temperature exceeds
2 °C of setpoint (nominally
20 °C).
Table 4. Nine-Pin D-sub Connector (10340A,
10341A/B/C, 10370A, 10371A, and 3540A,
3541A/B/C, 3740A, 3741A Transmitters)
Pin Description
115 Vdc
25 Vdc
3NC
4 Power Grou nd
5 Ref. Ground
6 Photodiode Current Monitor
7 Low Optical Power Alarm1
8 Laser Current Monitor
9 Over-temperature Alarm1
Table 5. Seven-Pin Miniature Rectangular
Connector (1540A, 1541A/B/C, 1740A,
1741A Transmitters)
Pin Description
AThermistor
BTEC (–)
CThermistor
DTEC (+)
E Laser Bias
FGround
H Monitor Photodiode
5
Agere Systems Inc.
Data Sheet
June 2001 Wideband DFB Laser Transmitters
Outline Drawings
10340A,10341A/B/C, 10370A, 10371A Transmitters (Dimension are in inches and (millimeters).)
1540A, 1541A/B/C, 1740A,1741A Transmitters (Dimension are in inches and (millimeters).)
3540A, 3541A/B/C, 3740A, 3741A Transmitters (Dimension are in inches and (millimeters).)
POWER
ON
LASER
POWER
LASER
TEMP
FIBER-OPTIC
TRASMITTER
OPTICAL
OUT
RF IN
SMA (F)
dc CONNECTOR
9-PIN D-SUB (M)
DANGER
9.12 (232)
5.06
(129)
1-1189(F).b
FIBER PIGTAIL 1.33 (34)
0.49
(12) 0.66
(17)
RF
INPUT
0.23
(6)
0.42
(11)
ACEH
BDF
7-PIN MI NIATURE
RECTANGULAR
K-CONNECTOR
1.53 (39)
1-1192 (F)a
OPTICAL
IN
5.60 (142)
6.00 (152)
0.20 (5)
0.38
(10)
2.13
(54)
4.25
(108)
5.00
(127)
Ø.12 (3)
RF OUT
SMA (F) dc CONNECTOR
9-PIN D-SUB (M)
1.50
(38)
0.12 (3)
POWER
ON LASER
POWER
STABLE
LASER
TEMP
STABLE
1-1191(F)
6Agere Systems Inc.
Data Sheet
Wideband DFB Laser Transmitters June 2001
Laser Safety Information
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
1 60825-1:1993. The device has been certi-
fied with the FDA under an accession number to be determined.
This product complies with 21 CFR 1040.10 and 1040.11.
Fujikura
2 PANDA single-mode fiber pigtail, 1 m—2 m; FC/APC connector, nonaligned
Wavelength = 1.3 µm, 1.5 µm
Maximum power = 30 mW
Because of size constraints, laser saf ety labeling (including an FD A Class IIIb label) is not affixed to the 1540/1541
or 1740/1741 modules 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 exposure.
1.
IEC
is a registered trademark of The International Electrotechnical Commission.
2.
Fujikura i
s a trademark of Fujikura LTD.
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, 1.5
µ
m
7
Agere Systems Inc.
Data Sheet
June 2001 Wideband DFB Laser Transmitters
Ordering Information
1. SWR specification not applicable for option -001.
* For additional ordering infor mation, please contact an account manager at OPTO West, Agere Systems Inc., 1-800-362-3891 (for sal es sta f f,
please press option 2).
Table 6. Wideband Laser Transmitter Options
Option No. Connector/Pigtail Package Type
Module Flange Plug-in
–001 dc Coupled1xxx
–005 1.5 Stage Optical Isolator x x x
–020 FC/APC Bulkhead Optical Connector — x x
–021 FC/SPC Bulkhead Optical Connector1—x x
–022 FC/APC Optical Connector/3 mm Fiber Cable Pigtail — x —
–023 FC/SPC Optical Connector/3 mm Fiber Cable Pigtail — x —
–026 FC/PC Bulkhead Optical Connector — x x
–028 FC/PC Optical Connector/3 mm Fiber Cable Pigtail — x —
–030 No Optical Connector/900 µm Buffered Fiber Pig tail x — —
–031 FC/PC Optical Connector/900 µm Buffered Fiber Pigtail x — —
–032 FC/APC Optical Connector/900 µm Buffered Fiber Pigtail x — —
Table 7. Ordering Information1
Device Code Description Package Type Comcode
1540A Wideband Laser Transmitter Module TBD
1541A Module TBD
1541B Module TBD
1541C Module TBD
1541C-E05 Module TBD
1740A Module TBD
1741A Module TBD
3540A Flange-Mount TBD
3541A Flange-Mount TBD
3541B Flange-Mount TBD
3541C Flange-Mount TBD
3541C-E05 Flange-Mount TBD
3740A Flange-Mount TBD
3741A Flange-Mount TBD
10340A Plug-in, for 19 in. Rack System TBD
10341A Plug-in, for 19 in. Rack System TBD
10341B Plug-in, for 19 in. Rack System TBD
10341C Plug-in, for 19 in. Rack System TBD
10341C-E18 Plug-in, for 19 in. Rack System TBD
10370A Plug-in, for 19 in. Rack System TBD
10371A Plug-in, for 19 in. Rack System TBD
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-15P-BA, Allen town, PA 18109-3286
1-800-372-2447, FAX 610-712-4106 (In CANADA: 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 118256
Tel. (65) 778 8833, FAX (65) 777 7495
CHINA: Agere Systems (Shanghai) Co., Ltd., 33/F Jin Mao Tower, 88 Centur y Boulevard Pudong, Shanghai 200 12 1 PRC
Tel. (86) 21 50471212, FAX (86) 21 50472266
JAPAN: Agere Systems Japan Ltd., 7-18, Higashi-Gotanda 2-chome, 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 32 8 148
Technical Inquiries: OPTOELECT RONICS M ARKETING: (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. No rights
under any patent accompany the sale of any such product(s) or information
Copyright © 2001 Agere Systems Inc.
All Rights Reserved
June 2001
DS00-304OPTO-2 (Replaces DS00-304OPTO -1)
Data Sheet
Wideband DFB Laser Transmitters June 2001
