1240nm High power DFB Laser diode


The PL-DFB--1240-A-A81 1240nm 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
1240nm High power DFB PM Laser diode   [PDF]  [RFQ]

PL-DFB-1240-B-A81-PA
Stock NO.: A80012098
[Please inquire]
1240nm High power DFB SM Laser diode   [PDF]  [RFQ]

PL-DFB-1240-B-A81-SA
Stock NO.: A80012097
[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

1239.5

1240.0

1240.5

nm

Side Mode Suppression Ratio

SMSR

30

40


dB

Threshold Current

Ith


20

30

mA

Operating Current

Iop


300

500

mA

Chip output Power

Pf

40

50

60

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

8f9085d438918fd8731e4cf601e55df7.jpg


L-I Curve

b18e6449b4533e12b14848637c7610a0.jpg


Tuning Characteristics

b740aa902a5defce931529d2c94ece6b_720.jpg


DFB Linewidth Testing Result

PT Linewidth.jpg


Package Size

5afc29578aef8.png

Pin definition

-56e5388b18cfc12b_副本.jpg

1

Thermoelectric Cooler (+)

8

N/C

2

Thermistor

9

N/C

3

PD Monitor Anode (-)

10

Laser Anode (+)

4

PD Monitor Cathode (+)

11

Laser Cathode (–)

5

Thermistor 

12

N/C

6

N/C

13

Case Ground

7

N/C

14

Thermoelectric Cooler (–)


Absolute Maximum Ratings

Item

Unit

Min

Typ

Max

Case Temperature

-5

25

70

Chip Temperature

+10

25

40

Operating Current

mA

0

300

500

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

1240: 1240nm

1392: 1392nm

1512: 1512nm

1567: 1567nm

1572: 1572nm

*****

1653.7: 1653.7nm

☆: Output Power

A: 30mW

B: 60mW

▽: 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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