A1750A55BBSC08 데이터 시트보기 (PDF) - Agere -> LSI Corporation

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A1750A55BBSC08

DWDM Analog Forward-Path or Return-Path Laser Module

Agere -> LSI Corporation 

Data Sheet, Rev. 4

June 2001

A1750A DWDM Analog

Forward-Path or Return-Path Laser Module

Characteristics (continued)

Table 2. Additional Characteristics

Parameter

Symbol

Conditions

Min

Max

Bias Current1 (Operating Current)

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

15

35

TEC Current

ITEC

–20 °C < TC < 65 °C,

–1.5

1.5

TOP = 15 °C—35 °C,

IF = 60 mA

TEC Voltage

VTEC TOP = 15 °C—35 °C over TC –2

2

Thermistor Resistance

RTH

TOP = 25 °C

9.5

10.5

Optical Return Loss

ORL

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

1-1233F

Figure 1. A1750A Laser Schematic

Agere Systems Inc.

3

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