A1751A33FFPG10 [FUJITSU]

Optoelectronic Device;


型号：	A1751A33FFPG10
厂家：	FUJITSU
描述：	Optoelectronic Device
文件：	总10页 (文件大小：88K)
中文：	中文翻译
下载：	下载PDF数据表文档文件

Data Sheet, Rev. 4

June 2001

A1751A DWDM Analog

Forward-Path or Return-Path Laser Modules

Description

The A1751A laser module is a dense wavelength-

division multiplexing (DWDM) laser for analog appli-

cations. It features a distributed-feedback (DFB) chip

that has been designed specifically for radio fre-

quency (RF) applications. The A1751A laser module

has a wide temperature range for reliable perfor-

mance in harsh node environments and narrow

transmitter designs. It also features low adiabatic

chirp to maximize signal quality in short and long

lengths of fiber. The laser’s excellent inherent linear-

ity minimizes degradation of the broadcast signals

caused by the quadrature amplitude modulation

(QAM) channels.

Wavelength-division multiplexing is being designed

into cable television architectures. DWDM, a method

for delivering targeted QAM signals to different loca-

tions, allows multiple signal sets to be combined onto

a single strand of fiber for transmission from a head-

end to a hub. At the hub, individual QAM signals can

be selected and combined with broadcast analog

channels. The versatile A1751A DWDM laser module

reduces cable network architecture fiber needs and

lessens equipment requirements in the hub.

Features

■ Higher temperature rating

■ Excellent linearity

■ Standard ITU wavelengths

■ Advanced analog chip design

■ Tested for forward and return path applications

■ Reduces equipment requirements in the hub

The A1751A is available in a wide range of standard

ITU wavelengths. The lasers are offered as either for-

ward-path (40 MHz—860 MHz) or return-path

(5 MHz—210 MHz) modules.

■ Exceeds Telcordia Technologies* 468 specifica-

tion.

Applications

■ Node capability

■ Narrow transmitter housing

■ Networks with limited fiber

■ Architectures using separate optical wavelengths

to carry targeted services

* Telcordia Technologies is a trademark of Telcordia Technologies,

Inc.

A1751A DWDM Analog

Forward-Path or Return-Path Laser Modules

Data Sheet, Rev. 4

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.

Parameter*

Symbol

Min

Max

Unit

Operating Case Temperature Range

Storage Temperature Range

Monitor Photodiode Reverse Voltage

Laser Forward Current

Tstg

VMPD

–40

—

150

°C

—

Reverse Voltage (Laser)

TEC Current

—

ITEC

PRFIN

—

1.7

RF Input Power

—

dBm V

* The device can withstand continuous exposure to the specified limits without damage.

Characteristics

Table 1. Key Characteristics

Parameter

Symbol

Conditions

Min

Typ

Max

Unit

Frequency Range:¹

Return Path

—

MHz

—

210

860

Forward Path

Frequency Response:¹

5 MHz—210 MHz

—

IF = 60 mA,

TOP = 25 °C

—

±0.5

—

40 MHz—860 MHz

RF Return Loss:¹

5 MHz—210 MHz

40 MHz—860 MHz

RLRF

IF = 60 mA,

IF = IOP

—

>16

—

Optical Output Power

6, 8, or

—

Laser Relative Intensity

Noise

RIN

IF = ITH + 70 mA,

T = 25 °C

—

< –155

—

dB/Hz

Composite Second Order^{2, 3}

Composite Triple Beat^{2, 4}

Available Wavelengths

Wavelength Drift⁵

CSO

CTB

IF = IOP, OMI = 10%

IP = IOP, T = TOP

—

–50

–60

dBc

1527.94

—

1563.1

0.04

λ∆

IF = 60 mA,

T = TOP,

TC varied from min—>max

Adiabatic Chirp

IF = 60 mA,

TOP = 25 °C,

measured at 500 MHz

—

100

MHz/mA

Operating Case

IF = IOP

–40

°C

Temperature Range

1. Tested in a 50 Ω resistively matched system.

2. Eight channel loading with 10% OMI and 40 km fiber length.

3. Measured at 42 MHz.

4. Measured at 553.25 MHz, 577.25 MHz, and 595.25 MHz.

5. Change in wavelength as case temperature is changed.

Agere Systems Inc.

Data Sheet, Rev. 4

June 2001

A1751A DWDM Analog

Forward-Path or Return-Path Laser Modules

Characteristics (continued)

Table 2. Additional Characteristics

Parameter

Bias Current¹

Symbol

Conditions

Min

Max

Unit

ITH

BOL

—

120

Threshold Current

Slope Efficiency²

25 °C, BOL

IP = ITH + 20 and

ITH + 60

0.10

—

mW/mA

Monitor Photocurrent

IMON

IOP = 0 mA, VRM = 5 V,

TOP = 25 °C

200

µA/mW

Operating Chip Temperature³

TEC Current

TOP

ITEC

IF = IOP

°C

–40 °C < TC < 85 °C,

TOP = 15 °C—35 °C,

IF = 60 mA

–1.5

1.5

TEC Voltage

VTEC

RTH

TOP = 15 °C—35 °C over TC

–2.5

—

3.8

10.5

—

Thermistor Resistance

Optical Return Loss

TOP = 25 °C

kΩ

Side Mode Suppression Ratio

SMSR

IF = IOP

—

1. Bias point at which all specifications apply.

2. For 10 mW output power. Minimum slope efficiency is lower for lower-power lasers.

3. Chip temperature at which wavelength specification is met. Operating chip temperature is reported for each laser.

Electrical Schematics

ISOLATOR

13 (+)

(–)

(+)

(–)

11 (+)

CASE

GROUND

CASE

GROUND

TEC

1-1233(F)

Figure 1. A1751A Laser Schematic

Agere Systems Inc.

A1751A DWDM Analog

Forward-Path or Return-Path Laser Modules

Data Sheet, Rev. 4

June 2001

Electrical Schematics (continued)

THERMISTOR

LASER

COMMON (+)

39 nH

0.01

3.3

SEE

FIGURES

3A AND 3B

LASER

MODULATION (–)

dc LASER

BIAS

200

Ω

LASER

COMMON (+)

MPD ANODE

CASE GROUND

SEE

FIGURE 4

1000 pf

MPC CATHODE

TEC (+)

1000 pf

CASE

GROUND

0.01 f

CASE

GROUND

TEC (–)

0.01 f

1-1234(F)

Figure 2. A1751A Circuit Schematic

37.5 Ω

0.01 µf

SEE PIN 12,

FIGURE 2

3:5

SEE PIN 12,

FIGURE 2

T1*

37.5 Ω

0.5 pF—2.5 pF

VSWR

1-1238F.b

Figure 3b. Resistive-Matched Configuration

1 pF—

5 pF

0.01 µf

FREQUENCY

RESPONSE

1-1238F.a

*T1 (75 Ω) 3:5.

Figure 3a. Impedance-Matched Configuration

Agere Systems Inc.

Data Sheet, Rev. 4

June 2001

A1751A DWDM Analog

Forward-Path or Return-Path Laser Modules

Electrical Schematics (continued)

TEC

CONSTANT

ALARM

THERMISTOR

39 nH

0.01

3.3

µf

1 THERMISTOR

2 THERMISTOR

dc LASER

3 dc LASER BIAS

4 MPD ANODE (CASE GROUND)

5 MPC CATHODE

6 TEC (+)

7 TEC (–)

8 GND

BIAS

µH

200

Ω

MPD ANODE

CASE GROUND

1000 pf

MPC CATHODE

TEC (+)

9 GND

10 GND

1000 pf

0.01 µf

TEC (–)

0.01 µf

1-1238F.c

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)

Agere Systems Inc.

A1751A DWDM Analog

Forward-Path or Return-Path Laser Modules

Data Sheet, Rev. 4

June 2001

Outline Diagram

Dimensions are in inches and (millimeters).

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)

LOCATION FOR LABEL

INCLUDING SERIAL NUMBER

AND DATE CODE

0.213

(5.4)

(LABEL NOT SHOWN)

0.049

(1.2)

0.250

(6.4)

0.500

(12.7)

0.350

(8.9)

0.190 ± 0.03

(5.0 ± 0.8)

4 x ø 0.105 (2.7)

0.820

(20.8)

0.078

(2.0)

1.025

(26.0)

1.180

(30.0)

0.700 ± 0.03

(18.0 ± 0.8)

0.365

(9.3)

0.248

(6.3)

0.215 ± 0.01

(5.5 ± 0.25)

0.040

(1.0)

1-1179.(F)a

Pin Information

Table 3. Pin Descriptions

Pin No.

Description

Thermistor

dc Laser Bias (–)

MPD Anode, Case Ground

MPD Cathode

Thermoelectric Cooler (+)

Thermoelectric Cooler (–)

Case Ground

Laser Common (+)

Laser Modulation (–)

Laser Common (+)

Agere Systems Inc.

Data Sheet, Rev. 4

June 2001

A1751A DWDM Analog

Forward-Path or Return-Path Laser Modules

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* 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-mode fiber pigtail with SC/APC connectors (standard)

Wavelength = 1.5 µm

Maximum power = 30 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.

* IEC is a registered trademark of The International 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 instruments

INVISIBLE LASER RADIATION EMITTED FROM END OF FIBER OR CONNECTOR

Avoid exposure to beam

Class 3B Laser Product IEC-60825M 1993 Max. Output: 30 mW

Wavelength: 1.5 m

Ordering Information

Table 4. Ordering Information*

Device Code

Description

Connector

Comcode

A1751A

(See Ordering Code

Definitons, next page)

DWDM Analog Forward or Return

Path Laser Module

SC/APC standard;

FC/APC available

TBD

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

Agere Systems Inc.

A1751A DWDM Analog

Forward-Path or Return-Path Laser Modules

Data Sheet, Rev. 4

June 2001

Ordering Information (continued)

Ordering Code Definitions

A1751 19 FF FC 10

Field Description

Family Name

Analog DWDM, DFB, Laser

Wavelength

20 = ch. 20

19 = ch. 19

21 = ch. 21

23 = ch. 23

25 = ch. 25

27 = ch. 27

29 = ch. 29

31 = ch. 31

33 = ch. 33

35 = ch. 35

37 = ch. 37

39 = ch. 39

41 = ch. 41

43 = ch. 43

45 = ch. 45

47 = ch. 47

49 = ch. 49

51 = ch. 51

53 = ch. 53

55 = ch. 55

57 = ch. 57

59 = ch. 59

61 = ch. 61

22 = ch. 22

24 = ch. 24

26 = ch. 26

28 = ch. 28

30 = ch. 30

32 = ch. 32

34 = ch. 34

36 = ch. 36

38 = ch. 38

40 = ch. 40

42 = ch. 42

44 = ch. 44

46 = ch. 46

48 = ch. 48

50 = ch. 50

52 = ch. 52

54 = ch. 54

56 = ch. 56

58 = ch. 58

60 = ch. 60

62 = ch. 62

Frequency Channel

FF = Forward path

RR = Return path

NN = NPR

BB = Both FF and RR

Optical Connector

SC = SC/APC

FC = FC/APC

PG = None (No connector)

Optical Power

06 = 6 mw

08 = 8 mw

10 = 10 mw

Custom

Agere Systems Inc.

Data Sheet, Rev. 4

June 2001

A1751A DWDM Analog

Forward-Path or Return-Path Laser Modules

Notes

Agere Systems Inc.

A1751A DWDM Analog

Forward-Path or Return-Path Laser Modules

Data Sheet, Rev. 4

June 2001

For additional information, contact your Agere Systems Account Manager or the following:

INTERNET:

E-MAIL:

http://www.agere.com

docmaster@micro.lucent.com

N. AMERICA: Agere Systems Inc., 555 Union Boulevard, Room 30L-15P-BA, Allentown, 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 Singapore 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 Century Boulevard Pudong, Shanghai 200121 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 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.

June 2001

DS00-349OPTO-4 (Replaces DS00-349OPTO-3)

A1751A33FFPG10 [FUJITSU]

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