850nm DFB Laser diode for Seed Laser


The PL-DFB-850-A-A81 850nm 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.We special design the area only work in room Temperature. Our diode has good performance from 20-30℃.



Product model


Name Model Price
850nm DFB SM Laser diode   [PDF]  [RFQ]

PL-DFB-850-A-A81-SA
Stock NO.: A80012021
[Please inquire]
850nm DFB PM Laser diode   [PDF]  [RFQ]

PL-DFB-850-A-A81-PA
Stock NO.: A80012022
[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

849.5

850.0

850.5

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

20

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

1ad88876-1352-44d5-baae-f63c7b7db72b.jpg


L-I Curve

E]W7.png

Tuning characteristics

808ed47e-45e9-48fb-8a93-8836f329a112.jpg

DFB Linewidth Testing Result

PT Linewidth.jpg


Beam Quality

D)XRNI6(B736%L%HB68S3.jpg    

2D 


 ZUYY5)4Z332N5V9_ZJ`JF.png

3D

Package Size

pk.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

180

250

Forward Voltage

V

0.8

1.2

2.1

TEC Current

A

-

1.2

1.2

Reverse VoltageLD

V

-

-

2.0

Reverse Voltage(PD)

V

-

-

20

Application

● Tunable diode laser absorption spectroscopy

● Seed laser

● Fiber laser

Ordering Info

PL-DFB-□□□□-☆-A8▽-XX

□□□□: Wavelength

850: 850nm

1392: 1392nm

1512: 1512nm

1567: 1567nm

*****

1653.7: 1653.7nm

☆ : Output Power

A: 20mW

B: 50mW

▽: Wavelength Tolerance

1: ±1nm

2: ±2nm

XX: Fiber and Connector Type

SA=HI780+ FC/APC

SP=HI780+ FC/PC

PA=PM980 Fiber+ FC/APC

PP=PM980 Fiber+ FC/PC



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