D2526G36 参数 Datasheet PDF下载

Data Sheet, Rev. 3

July 2001

D2570, D2526G, D2555 Wavelength-Selected

Direct Modulated Isolated DFB Laser Module

D2555 Characteristics

Minimum and maximum values are testing requirements. Typical values are characteristics of the device and are

the result of engineering evaluations. Typical values are for information purposes only and are not part of the test-

ing requirements.

Table 4. Electrical Characteristics (at 25 °C laser temperature)

Parameter

Slope Efficiency

Threshold Current

Laser Forward Voltage

Laser Submount Temperature

Monitor Reverse-bias Voltage*

Monitor Current

Monitor Dark Current

Input Impedance

Thermistor Current

Resistance Ratio

†

Thermistor Resistance

TEC Current

TEC Voltage

TEC Capacity

Symbol

η

I

TH

V

LF

T

LASER

V

RMON

I

RMON

I

D

Z

IN

I

TC

—

R

TH

I

TEC

V

TEC

∆T

Test Conditions

L

F

= 2 mW (CW)

—

L

F

= 2 mW (CW)

—

—

P

OL

= 1 mW (CW)

I

F

= 0, V

RMON

= 5 V

—

—

—

T

L

= 25 °C

T

L

= 25 °C, T

C

= 70 °C

T

L

= 25 °C, T

C

= 70°C

T

C

= 70 °C

Min

0.05

—

—

20

3

0.1

—

—

10

9.1

9.5

—

—

—

Typ

0.08

12

1.3

—

5

0.3

0.01

25

—

—

—

0.6

1.3

—

Max

0.10

35

1.8

30

10

1.9

0.1

—

100

9.6

10.5

1.0

2.0

50

Unit

mW/mA

mA

V

°C

V

mA

µA

Ω

µA

—

kΩ

A

V

°C

* Standard operating condition is 5.0 V reverse bias.

† Ratio of thermistor resistance at 0 °C to thermistor resistance at 50 °C.

Table 5. Optical Characteristics (at 25 °C laser temperature)

Parameter

Peak Optical Output Power

Center Wavelength

(See Table 11.)

Line Width (3 dB full width)

Side-mode Suppression Ratio

Optical Isolation

Wavelength Drift (EOL)

Center Wavelength Drift with

Case Temperature

Wavelength Temperature Tuning

Coefficient

Tracking Error

Table 6. Dispersion Performance

Parameter

Dispersion Penalty for Extended Reach

Symbol

DP

Test

Conditions

3000 ps/nm

Min

—

Typ

—

Max

2.0

Unit

dB

Symbol

P

PEAK

λc

Test Conditions

Min

2.0

1528.77

—

30

30

—

—

—

—

Typ

—

—

2

—

—

—

—

0.095

—

Max

—

1563.86

10

—

—

±0.1

1

—

1

Unit

mW

nm

MHz

dB

dB

nm

pm/°C

nm/°C

dB

—

T

L

= 25 °C

CW wavelength

∆λ

Modulated at 2.5 Gbits/s

at rated power

SMSR

CW

—

T

C

= 0 °C to 75 °C

∆λ

Tested over

25-year lifetime

∆λ

C

/∆T

C

0 °C

≤

T

C

≤

75 °C

—

—

—

T

C

= –20 °C/25 °C/70 °C

Agere Systems Inc.

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