1645nm DFB Laser Diode For C2H4 Sensing   2021-12-01    


The PL-DFB-1645-A-A81 1645nm 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
1645nm DFB PM Laser diode  [PDF]  [RFQ]

PL-DFB-1645-A-A81-PA
Stock NO.: A80012382
USD 1650.00 
 
1645nm DFB SM Laser diode  [PDF]  [RFQ]

PL-DFB-1645-A-A81-SA
Stock NO.: A80012381
USD 1500.00 
 


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

1644.5

1645.0

1645.5

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

QQ图片20200401175010.png

L-I Curve

1648.png

Tuning characteristics

1B514F78250306A959C0ECBB517D87C5.png

DFB Linewidth Testing Result

3F}3~5GMTW8F9$)8_GB@VSG.png


Wavelength Stability

1645.0nm 波长.png

Beam Quality Profiler (2D/3D) 

D)XRNI6(B736%L%HB68S3.jpg    

2D 


 ZUYY5)4Z332N5V9_ZJ`JF.png

3D


Camera Analysis 

89A31A99B922B0A5004C93A98748FF54.png

Package Size

5bd95c4bcb3b1.png

Pin definition

GUGGDL(4GHO1@%_{H_OZB]I.jpg

Pin Connection

PIN#

Function

PIN#

Function

1

Thermistor

8

Case Ground

2

Thermistor

9

Case Ground

3

Laser Cathode (-)

10

NC

4

NC

11

Laser Anode (+)

5

NC

12

Laser Cathode (-)

6

TEC (+)

13

Laser Anode (+)

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

● C2H4 Monitoring

Ordering Info

PL-DFB-□□□□-☆-A8▽- XX

□□□□: Wavelength

1392: 1392nm

1512: 1512nm

1567: 1567nm

1572: 1572nm

*****

1645: 1645nm

☆: 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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