Advance Data Sheet

D572-Type 1.5

µm Uncooled DFB FastLight Laser Module

February 2000

for 2.5 Gbits/s and High-Bandwidth Applications

3

Lucent Technologies Inc.

Handling Precautions

CAUTION: This device is susceptible to damage as a result of electrostatic discharge (ESD). Take proper

precautions during both handling and testing. Follow

EIA * Standard EIA-625.

Although protection circuitry is designed into the device, take proper precautions to avoid exposure to ESD.

*

EIA is a registered trademark of Electronic Industries Association.

Electro-Optical Characteristics

1. BOL value; EOL = 80 mA.

2. The slope efficiency is used to calculate the modulation current for a desired output power. This modulation current plus the threshold current

comprise the total operating current for the device.

3 1510 nm wavelength also available.

4. Corrected for electrical pulse fall time.

Table 2. Electro-Optical Characteristics (over operating temperature range unless otherwise noted)

Parameter

Symbol

Test Conditions

Min

Typ

Max

Unit

Operating Temperature

Range

T

—

–25

—

70

°C

Optical Output Power

CW, peak

—

2

—

mW

Threshold Current

T = 25

°C

T = full range

5

2

11

—

15

60

mA

mA

Modulation Current

°C

T = full range

15

7.5

25

—

35

mA

mA

SE

°C

57

—

133

µW/mA

1530

1550

1570

nm

Spectral Width (–20 dB)

∆λ

—

—

1

nm

Side-mode Suppression

Ratio

SMSR

30

40

—

dB

Tracking Error

TE

—

—

1.5

dB

Spontaneous Emission

—

—

100

µW

Rise/Fall Times

°C

—

0.125

0.175

ns

Dispersion Penalty

1200 ps/nm—1600 ps/nm;

typical, 1350 ps/nm

—

—

2.0

dB

Optical Return Loss

ORL

CW

18

—

—

dB

Forward Voltage

At bias coil

—

1.0

1.6

V

Input Impedance

R

—

—

25

—

Ω

Monitor Current

100

—

1000

µA

Monitor Dark Current

—

10

200

nA

Wavelength Tempera-

ture Coefficient

—

—

—

0.09

0.12

nm/

°C