1240~2000nm DFB Lasers

Description

The HST-DFB-BF14-x-x laser modules are designed for optical sensing and optical communication applications. These modules incorporate high output power while maintaining high linearity. The narrow line width and the option of using polarization maintaining optical fiber make it especially ideal for external modulation development.


Feature

• Standard OC-48 pin compatible

• Narrow spectral linewidth

• Low noise

• Compliant GR-468 reliability regulation


Parameter

Absolute Operation Conditions:

Parameter

Symbol

Value

Unit

Laser Forward Current, Max

If(LD)

100

mA

Laser Reverse Voltage, Min

Vr(LD)

2

V

Monitor PD Current, Max

If(PD)

2

mA

Monitor PD Reverse Bias Voltage,Max

Vr(PD)

20

V

TEC Current, Max

ITEC

2.4

A

TEC Voltage, Max

VTEC

2.9

V

Operation Tempaerature

Topr

-20~+70

Storage Temperature

Tstg

-40~+85

PIN Solder Temperature/Period

Tsld

260/10

℃/s


Operation Specification:

Parameter

Symbol

Test Conditions

Min

Typ

Max

Unit

Optical Output Power

PO

CW

3

5

-

mW

Threshold Current

Ith

CW

-

12

18

mA

Operation Current

Iop

CW,5mW

-

-

50

mA

Operation Forward Voltage

Vop

CW,5mW

-

1.5

2

V

Slope Efficiency

η

CW,5mW

0.05

0.1

-

mW/mA

Central Wavelength

λc

CW,5mW,25℃

λc-1

λc

λc+1

nm

Side-mode Suppresion Ratio

SMSR

CW,5mW

35

-

-

dB

Spectral Width(20dB)

∆λ

CW,5mW

-

0.2


nm

Wavelength Stability

λs

CW,5mW,25℃

-0.1


+0.1

nm

Wavelength VS Temperature Coefficient

Δλ/T

Constant laser operation current


0.1


nm/℃

Wavelength VS Laser Current Coefficient

Δλ/I

Constant laser operation temperature


0.01


nm/mA

Thermistor Resistance

Rth

Ttherm = 25℃

9.5

10

10.5

kΩ


Absorption lines relate with special gas molecular:

Gas Molecular

Absorption Line

HF

1268.7nm、1278nm、1273nm

HBr

1343nm

H2O

1368nm、1392nm、1800nm

NH3

1512nm、1531nm

C2H2

1532.68nm

N2O

1521nm

CO

1567nm、2332nm

H2S

1576nm、1578nm、1590nm

CO2

1580nm、1998nm、2004nm

C2H4

1620nm、1627nm

CH4

1647nm、1650.9nm、1653.7nm、1660nm

HCl

1742nm


Application

• Optical communication, wavelength division multiplexing (WDM) application

• Opto-electrical instrument

• Light source

• OTDR

• Gas sensing



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