Datasheet A1112PC, A1112PB, A1112NC, A1112NB Datasheet (AGERE)

A1112 High-Power 1550 nm DFB Source Lasers

Description

The A1112 1550 nm DFB laser modules are high­power devices in a 14-pin butterfly package with a
thermoelectric cooler and monitor photodiode. The
lasers are designed to be used in conjunction with
commercially available external modulators for high­performance analog and digital applications. Agere
Systems Inc. offers modules with 30 mW or 40 mW
output power coupled into polarization-preserving
fiber. The A1112 operates with positive or negative
bias.

Data Sheet

January 2001

Features

■

High fiber-coupled power, 30 mW and 40 mW

■

Narrow linewidth, <3 MHz

■

Low relative intensity noise, < –162 dB/Hz

■

Coupled to polarization-preserving (PANDA-type
fiber)

Applications

■

Externally modulated CATV transmitters

■

Externally modulated analog and digital communi­cation links

Data Sheet

A1112 High-Power 1550 nm DFB Source Lasers January 2001

Absolute Maximum Ratings

Stresses in excess of the absolute maximum ratings can cause permanent damage to the device. These are abso­lute 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.

Parameter Symbol Min Max Unit

Operating Case Temperature Range T

C

Storage Temperature Range Tstg –40 70 °C
Forward Current (Laser)

I

F

A1112PB, A1112NB

A1112PC, A1112NC
Reverse Voltage (Laser) V
Photodiode Reverse Voltage V
TEC Voltage V
TEC Current

RPD
TEC

I

TEC

R

Cooling

Heating

–20 65 °C

—
—

275
400

mA

mA
—2.0V
—10V
—2.0V

—
—

1.8

1.5

A
A

Electrical/Optical Characteristics

Table 1. Optical Characteristics

Parameter Symbol Conditions Min Max Unit

Optical Output Power

A1112PB, A1112NB

A1112PC, A1112NC
Center Wavelength λ
Linewidth (FWHM) ∆
Side Mode Suppression Ratio SMSR I
Relative Intensity Noise RIN l

Operating Current I
Threshold Current I
Forward Voltage V
Optical Isolation — –20 °C to +65°C 30 — dB
Polarization Extinction Ratio T
Reverse Voltage V

Table 2. Electrical Characteristics

Parameter Symbol Condition Min Max Unit

Monitor Photodiode Reverse Voltage V
Monitor Photodiode Current I
TEC Current I
TEC Voltage V
Thermistor Resistance R

(25 °C Case Temperature)

P

O

C
V

40 MHz to 860 MHz

OP
TH

F

E/TM

R

From fiber end, I

RMPD

MPD

TEC

TEC

TH

∆T = 40 °C — 1.8 A
∆T = 40 °C — 2.2 V

25 °C 9.0 11.0 kΩ

—
—

I

OP

I

OP
OP

,

OP

30
40

—
—

1540 1560 nm

—3MHz
30 — dB
— –162 dBc/Hz

— — 250/350 mA
— — 35/40 mA
— — 2.5/3.0 V

OP

20 — dB

——2.0V

Iop — 10 V

— 40 2000 µA

mW
mW

2

Agere Systems Inc.

Data Sheet
January 2001 A1112 High-Power 1550 nm DFB Source Lasers

Electrical/Optical Characterisitics

(+) (–)

1

2

NC

3

CASE
GROUND

4

NC

5

6

7

Figure 1. A1112 Laser Positive Bias Ciicuit Schematic

(continued)

TEC

NC

CASE

GROUND

CASE

GROUND

14

13

12

11

10

9

8

1-1232(F)

1

(+) (–)

2

NC

3

CASE
GROUND

4

5

CASE
GROUND

6

NC

7

TEC

CASE

GROUND

CASE

GROUND

NC

14

13

12

11

10

9

8

1-1232(F).a

Figure 2. A1112 Laser Negative Bias Ciicuit Schematic

Agere Systems Inc.

3

Data Sheet

A1112 High-Power 1550 nm DFB Source Lasers January 2001

Outline Diagram

Dimensions are in inches and (millimeters).

0.030
(0.76)

0.050
(1.27)

14 13 12 11 10 9 8

4X Ø 0.105

(2.67)

0.255
(6.48)

0.360
(9.14)

1234567

0.700 (17.78)

0.820 (20.83)

1.025 (26.04)

1.180 (29.97)

0.100

2.54

0.290
(7.37)

0.060
(1.52)

0.350
(8.89)

0.240
(6.09)

0.600

(15.24)

0.500

(12.70)

0.390
(9.91)

1-1177(F)

Pin Information

Table 3. Pin Descriptions

Pin
No.

1 TE Cooler (+) TE Cooler (+) 8 Photodiode Anode Photodiode Anode
2 NC NC 9 Laser Anode Laser Cathode
3 Case Ground Case Ground 10 Case Ground Case Ground
4 NC Laser Cathode 11 Thermistor Thermistor
5 Laser Cathode, Case Ground Laser Anode, Case Ground 12 Case Ground Case Ground
6 Laser Anode NC 13 NC NC
7 Photodiode Cathode Photodiode Cathode 14 TE Cooler (–) TE Cooler (–)

4

A1112

(Positive Bias)

A1112

(Negative Bias)

Pin

No

A1112

(Positive Bias)

A1112

(Negative Bias)

Agere Systems Inc.

Data Sheet
January 2001 A1112 High-Power 1550 nm DFB Source Lasers

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

1

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.

Fujikura

2

PANDA single-mode fiber pigtail, 1 m—2 m; FC/APC connector, nonaligned
Wavelength = 1.5 µm
Maximum power = 60 mW

Because of size constraints, laser safety labeling (including an 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 exposure.

1.

IEC

is a registered trademark of The International Electrotechnical Commission.

Fujikura

2.

is a registered 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 instruments

INVISIBLE LASER RADIATION EMITTED FROM END OF FIBER OR CONNECTOR

Avoid exposure to beam
Class 3B Laser Product IEC-60825M 1993 Max. Output: 60 mW Wavelength: 1.5 µm

Agere Systems Inc.

5

Data Sheet

A1112 High-Power 1550 nm DFB Source Lasers January 2001

Ordering Information

Table 4. Ordering Information

1

Device Code Output Power/Laser Bias Fiber/Connector Comcode

A1112PB 30 mW/ Positive Laser Bias
A1112PC 40 mW/ Positive Laser Bias 108846544

Fujikura

PANDA/

FC/APC nonaligned

108846536

A1112NB 30 mW/ Negative Laser Bias 108846510
A1112NC 40 mW/ Negative Laser Bias 108846528

1. For additional ordering information, please contact an account manager at Opto West, Agere Systems, 1-800-362-3891 (for sales staff,
please press option 2).

For additional information, contact your Agere Systems Account Ma na ger or the following:
INTERNET:
E-MAIL:
N. AMERICA: Agere Systems Inc., 555 Union Boulevard, Room 30L-15P-BA, Allentown, PA 18109-3286

ASIA PACIFIC: Agere Systems Singapore Pte. Ltd., 77 Science Park Drive, #03-18 Cintech III, Singapore 118256
CHINA: Agere Systems (Shanghai) Co., Ltd., 33/F Jin Mao Tower, 88 Century Boulevard Pudong, Shanghai 200121 PRC
JAPAN: Agere Systems Japan Ltd., 7-18, Higashi-Gotanda 2-chome, Shinagawa-ku, Tokyo 141, Japan
EUROPE: Data Requests: DATALINE:

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

January 2001
DS00-281OPTO-1 (Replaces DS00-281OPTO)

http://www.agere.com
[e-mail]

1-800-372-2447
Tel. [phone]
Tel. [phone]
Tel. [phone]

Technical Inquiries: OPTOELECTRONICS MARKETING:

, FAX [phone] (In CANADA:

, FAX [phone]

, FAX [phone]

, FAX [phone]

Tel. [phone]

1-800-553-2448

, FAX [phone]

, FAX [phone])

(44) 1344 865 900

(Ascot UK)