A1751A43NNPG08 데이터 시트보기 (PDF) - Agere -> LSI Corporation

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A1751A43NNPG08

DWDM Analog Forward-Path or Return-Path Laser Modules

Agere -> LSI Corporation 

Data Sheet, Rev. 4

June 2001

A1751A DWDM Analog

Forward-Path or Return-Path Laser Modules

Characteristics (continued)

Table 2. Additional Characteristics

Parameter

Symbol

Conditions

Min

Max

Bias Current1

IB

BOL

—

120

Threshold Current

ITH

25 °C, BOL

—

30

Slope Efficiency2

η

IP = ITH + 20 and

0.10

—

ITH + 60

Monitor Photocurrent

IMON

IOP = 0 mA, VRM = 5 V,

10

200

TOP = 25 °C

Operating Chip Temperature3

TOP

IF = IOP

18

35

TEC Current

ITEC

–40 °C < TC < 85 °C,

–1.5

1.5

TOP = 15 °C—35 °C,

IF = 60 mA

TEC Voltage

VTEC TOP = 15 °C—35 °C over TC –2.5

3.8

Thermistor Resistance

RTH

TOP = 25 °C

—

10.5

Optical Return Loss

RL

TC

40

—

Side Mode Suppression Ratio SMSR

IF = IOP

30

—

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

Unit

mA

mA

mW/mA

µA/mW

°C

A

V

kΩ

dB

dB

1

14

NC

ISOLATOR

2

13 (+)

3

12 (–)

(–) 4

11 (+)

(+) 5

(+) 6

(–) 7

TEC

10

NC

CASE 9

GROUND

CASE 8

GROUND

Figure 1. A1751A Laser Schematic

1-1233(F)

Agere Systems Inc.

3

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