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Home / Laser diode / Distributed Feedback Laser / 1653.7nm DFB Laser diode for CH4 Sensing(TO Package)

1653.7nm DFB Laser diode for CH4 Sensing(TO Package)

The PL-DFB-1653.7-A1 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 TO56 package with TEC and PD Built in.

Name Price Operation
1653.7nm DFB Laser diode $450.00
1653.7nm DFB Laser diode $450.00
Features

● Narrow Linewidth < 2MHz

● Industry Standard 14 pin Butterfly package

● Mode-Hop free tuning

● Excellent reliability

● Customer specific wavelengths available

Laser Characteristics

Electrical/Optical Characteristics(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

120

mA

Chip output Power

Pf

10

15

20

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

Collimation Lense

Yes

Spectrum

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L-I Curve

E]W7.png

Beam Quality

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                                                     2D                                                                                                                   3D

Dimensions and Pin definitions

ch43.jpg

ch45.jpg

Pin

Definitions

Pin

Definitions

1

TEC ( - )

5

PD Cathode

2

THERMISTOR ( + )

6

LD Cathode

3

LD Anode

7

THERMISTOR ( - )

4

PD Anode

8

TEC ( + )

Absolute  Maximum Ratings

Item

Unit

Min

Typ

Max

Case Temperature

  

-5

25

70

Chip Temperature

+10

25

40

Operating Current

mA

0

100

120

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

● CH4 Monitoring

OEM Info

PL-DFB-□□□□-☆-A8▽

□□□□:Wavelength

1512:1512nm

*****

1653.7:1653.7nm

☆ :Output Power

A:10mW

B:20mW

▽:Wavelength Tolerance

1:±1nm

2:±2nm