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Home / Laser diode / Distributed Feedback Laser / 1814nm DFB Laser diode for Sensing

1814nm DFB Laser diode for Sensing

The PL-DFB-1814-A1 1814nm 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.

Name Price Operation
1814nm DFB SM Laser diode Email us
1814nm DFB PM Laser diode Email us
Features

● Narrow Linewidth < 2MHz

● Excellent wavelength control and stability

● Industry Standard 14 pin Butterfly package

● Mode-Hop free tuning

● Excellent 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

1813

1814

1815

nm

Side Mode Suppression Ratio

SMSR

30

40


dB

Threshold Current

Ith


20

30

mA

Operating Current

Iop


80

120

mA

Chip output Power

3


5

8

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

1814.png


L-I Curve

1814.5.png

Dimensions and Pin definitions

1814.6.png

1

Thermoelectric Cooler (+)

8

N/C

2

Thermistor

9

Laser Cathode (–)

3

PD Monitor Anode (-)

10

laser Anode (+)

4

PD Monitor Cathode (+)

11

N/C

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

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

● H2O Monitoring

OEM Info

PL-DFB-□□□□-☆-A8▽-XX

□□□□: Wavelength

1512:1512nm

*****

1653.7: 1653.7nm

1814: 1814nm

2327: 2327nm

☆: Output Power

A: 5mW

B: 10mW

▽: 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