1574nm DFB Laser Diode for CO2 Sensing

Parameter

Symbol

Condition

Min.

Typ.

Max.

Unit

Storage Temperature

Ts

-

-40

-

85

°C

Operating Case Temperature

Top

-

-20

-

70

°C

forward Current

IF

CW

-

-

200

mA

Laser Reverse Voltage

VLR

-

-

-

2

V

PDforward Current

IFPD

-

-

1.1

5

mA

PD Reverse Voltage

VRPD

-

-

5

10

V

TEC Current

ITEC

-

-

0.8

1.5

A

TEC Voltage

VTEC

-

-

1.5

3.5

V

Parameter

Symbol

Test Condition

Min.

Typ.

Max.

Unit

Center Wavelength

λc

TL=15~35°C, CW

1573

1574

1575

nm

Optical Output Power

PO

-

10

-

-

mW

Threshold Current

ITH

-

-

10

35

mA

Slope Efficiency

η

CW, 5mW output

0.05

0.11

0.2

mW/mA

Operating Current

Iop

PO=10mW, CW

-

100

120

mA

Spectral Linewidth

LW

FWHM

-

3

-

MHz

Laserforward Voltage

VF

CW, 10mW output

-

1.2

3.0

V

Monitor Dark Current

ID

-

-

-

0.1

μA

Bandwidth (-3dB)

BW

-

-

2.5

-

GHz

Side-Mode Suppression Ratio

SMSR

CW

35

40

-

dB

Optical Isolation

-

-10<TC<+70°C

30

-

-

dB

Relative Intensity Noise

RIN

CW, 5mW output

-

-145

-

dB/Hz

TEC Set Temperature

Ts

-

15

-

35

°C

Input Impedance

ZIN

-

22

25

28

Ω

Thermistor Current

ITC

-

10

-

100

μA

Thermistor Resistance

RTH

TL=25°C

9.5

10

10.5

kΩ

TEC Current

ITEC

TL=25°C, TC=70°C

-

-

1.5

A

TEC Voltage

VTEC

TL=25°C, TC=70°C

-

-

3.5

V

TEC Capacity

ΔT

Tc=70°C

-

-

50

°C

Wavelength Drift (EOL)

Δλ

25-year lifetime

-

-

±0.1

nm

Wavelength Temperature Coefficient

Δλ/ΔT

TEC 15°C to 35°C

-

0.09

-

nm/°C

Wavelength Current Coefficient

Δλ/ΔI

-

-

0.01

-

nm/mA

Pin

Description

Pin

Description

1

Thermistor

14

NC (No Connection)

2

Thermistor

13

Laser Anode (+)

3

Laser DC Bias (Cathode) (-)

12

Laser RF Cathode (-)

4

PD Monitor Anode (-)

11

Laser Anode (+)

5

PD Monitor Cathode (+)

10

NC (No Connection)

6

TEC (+)

9

Case Ground

7

TEC (-)

8

Case Ground

Pin

Description

Pin

Description

1

TEC (+)

14

TEC (-)

2

Thermistor

13

Case Ground

3

PD Monitor Anode (-)

12

NC (No Connection)

4

PD Monitor Cathode (+)

11

Laser Cathode (-)

5

Thermistor

10

Laser Anode (+)

6

NC (No Connection)

9

NC (No Connection)

7

NC (No Connection)

8

NC (No Connection)

Field

Code

Description

Laser Type

BFLD

DFB Laser Diode Series

Wavelength

1574

1574nm

(other wavelengths available:1030, 1064, 1392, 1653, 1683,  CWDM)

Output Power

20

20mW;

10 = 10mW

Fiber Type

PM

PM = Polarization-maintaining;

SM =Single-mode

Connector Type

FA

FC/APC;

SA = SC/APC;

Other connectors available

Pinout

NULL / 2

NULL = Type 1 (default);

2 = Type 2