1653.7nm DFB Laser diode for CH4 Sensing     


The PL-DFB-1653.7-A-A81 1653.7nm 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
1653.7nm DFB SM laser diode (Type B Pin definition)   [PDF]  [RFQ]

PL-DFB-1653.7-A-1-SA-14BF
Stock NO.: A80012397
[Please inquire]
1653.7nm DFB PM laser diode   [PDF]  [RFQ]

PL-DFB-1653.7-A-1-PA-14BF
Stock NO.: A80012398
[Please inquire]
1653.7nm DFB SM laser diode (Type A Pin definition)   [PDF]  [RFQ]

PL-DFB-1653.7-A-1-SA-14BF
Stock NO.: A80012396
[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

Tsub=25°C, CW bias unless stated otherwise

Parameter

Symbol

Min

Typ

Max

Unit

Centre Wavelength

λ

1653.2

1653.7

1654.2

nm

Side Mode Suppression Ratio

SMSR

30

40


dB

Threshold Current

Ith


20

30

mA

Operating Current

Iop


80

150

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

1673_副本.jpg


L-I Curve

1653.7.png

Tuning Characteristics

1653.78.png

DFB Linewidth Testing Result

PT Linewidth.jpg


Wavelength Stability

1654nm 波长.png

Mode hope tuning Range

1654.jpg


Beam Quality

D)XRNI6(B736%L%HB68S3.jpg    

2D 


 ZUYY5)4Z332N5V9_ZJ`JF.png

3D

Camera Analysis 

89A31A99B922B0A5004C93A98748FF54.png

Package Size

16542_副本.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



QQ图片20220114165017.png

Pin Connection

PIN#

Function

PIN#

Function

1

Thermistor

8

NC

2

Thermistor

9

NC

3

NC

10

NC

4

PD Monitor Anode (-)

11

Laser Anode (+),Case Ground

5

PD Monitor Cathode (+)

12

RF Laser Input Cathode (–)

6

Thermoelectric Cooler (+)

13

Laser Anode (+),Case Ground

7

Thermoelectric Cooler (–)

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


CH4

t4.png

Application

● Tunable diode laser absorption spectroscopy

● CH4 Monitoring

Ordering Info

PL-DFB-□□□□-☆--XX-14BF

□□□□:Wavelength

1512:  1512nm

*****

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

PA=PM Fiber+ FC/APC

PP=PM Fiber+ FC/PC



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