1490nm DFB Tunable Laser Diode


The PL-DFB-1490-A-A81 1490nm DFB laser diode module made by LD-PD is a cost effective, highly coherent laser source. The DFB laser diode chip is packaged in an industry standard hermetically sealed 14 pin butterfly package with TEC and PD Built in.



Product model


Name Model Price
1490nm DFB PM Laser diode   [PDF]  [RFQ]

PL-DFB-1490-A-A81-PA
Stock NO.: A80012210
[Please inquire]
1490nm DFB SM Laser diode   [PDF]  [RFQ]

PL-DFB-1490-A-A81-SA
Stock NO.: A80012209
[Please inquire]


Parameter



Features

● Narrow Linewidth < 2MHz

● Excellent wavelength control and stability

● Industry Standard 14 pin Butterfly package

● Mode-Hop free tuning

● Excellant reliability

● Customer specific wavelengths available

Laser Specifications

Electrical/Optical Characteristics (Tsub=25°C, CW bias unless stated otherwise)

Parameter

Symbol

Min

Typ

Max

Unit

Centre Wavelength

λ

1489.5

1490

1490.5

nm

Side Mode Suppression Ratio

SMSR

30

40


dB

Threshold Current

Ith


20

30

mA

Operating Current

Iop


80

120

mA

Chip output Power

Pf

10

15

30

mW

Quantum Efficiency

η

0.08

0.12


mW/mA

Current Tuning Coefficient

∆λ/∆I


0.015


nm/mA

Temperature Tuning Coefficient

∆λ/∆T


0.12


nm/K

Forward Voltage

Vf


1.3

2

V

Thermistor Resistance

RT

9.5

10

10.5

Thermistor Temp. Coefficient



-4.4


%/°C

Connector

FC/APC


Spectrum

1490.png

L-I Curve

1468.8.png

DFB Linewidth Testing Result

PT Linewidth.jpg


Beam Profile 2D/3D

2d.png      3d.png

2D                                                                                              3D

Package Size

5afc29578aef8.png

Pin definition

Schematic Diagram (Top View)

pp.png

Pin Connection

PIN#

Function

PIN#

Function

1

Thermistor

8

Case Ground

2

Thermistor

9

Case Ground

3

LD(-)

10

NC

4

Detector (+)

11

LD(+)

5

Detector (-)

12

LD (–), RF 

6

TEC (+)

13

LD (+)

7

TEC (–)

14

NC


Absolute  Maximum Ratings

Item

Unit

Min

Typ

Max

Case Temperature

  

-5

25

70

Chip Temperature

+10

25

40

Operating Current

mA

0

100

150

Forward Voltage

V

0.8

1.2

1.8

TEC Current

A

-

-

1.2

Reverse VoltageLD

V

-

-

2.0

Reverse Voltage(PD)

V

-

-

20

Application

● Tunable diode laser absorption spectroscopy

● Gas Monitoring

Ordering Info

PL-DFB-□□□□-☆-A8-XX

□□□□:Wavelength

1341: 1341nm

1392: 1392nm

1469: 1469nm

1512: 1512nm

1567: 1567nm

*****

1487.6: 1487.6nm

☆ :Output Power

A:10mW

B:20mW

▽:Wavelength Tolerance

1:±1nm

2:±2nm

XX: Fiber and Connector Type

SA=SMF-28E+ FC/APC

SP=SMF-28E+ FC/PC

PP=PM Fiber+ FC/PC

PA=PM Fiber+ FC/APC



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