1651nm DFB Laser diode for CH4 sensing


The PL-DFB-1651-A-A81 1651nm 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
1651nm DFB SM Laser diode (Type B )   [PDF]  [RFQ]

PL-DFB-1651-A-A81-SA
Stock NO.: A80012389
[Please inquire]
1651nm DFB PM Laser diode (Type A )   [PDF]  [RFQ]

PL-DFB-1651-A-A81-PA
Stock NO.: A80012391
[Please inquire]
1651nm DFB SM Laser diode (Type A )   [PDF]  [RFQ]

PL-DFB-1651-A-A81-SA
Stock NO.: A80012390
[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

1650.5

1651.0

1651.5

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

1650.png


L-I Curve

5bd967f59665c.png

ResultTuning characteristics

txtp.png


DFB Linewidth Testing Result

PT Linewidth.jpg

Beam Quality

D)XRNI6(B736%L%HB68S3.jpg    

2D 


 ZUYY5)4Z332N5V9_ZJ`JF.png

3D

Camera Analysis 

89A31A99B922B0A5004C93A98748FF54.png


Package Size

TYPE A

800.png

TYPE B

B model.png

Pin definition

Schematic Diagram (Top View)


TYPE A 

pp.png

TYPE A 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


TYPE B Pin Connection


QQ图片20220114165017.png

PIN#

Function

PIN#

Function

1

TEC+

8

Case Ground

2

Thermistor

9

NC

3

Detector+

10

Laser Anode(+)

4

Detector-

11

Laser Cathode(-)

5

Thermistor

12

NC

6

NC

13

NC

7

NC

14

TEC-


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


CH4

t4.png

Application

● Tunable diode laser absorption spectroscopy

● CH4 Monitoring

Ordering Info

PL-DFB- □□□□-☆-A8▽- XX

□□□□:Wavelength

1392:1392nm

1512:1512nm

1567:1567nm

1572:1572nm

*****

1653.7:1653.7nm

☆ :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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