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Home / Laser diode / Distributed Feedback Laser / 795nm DFB Laser diode

795nm DFB Laser diode

The PL-DFB-A1-795-R 795nm 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℃.

Name Price Operation
795nm DFB SM Laser diode
[Explore More]
$4800.00
 
795nm DFB PM Laser diode
[Explore More]
$5150.00
 
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

794.5

795.0

795.5

nm

Side Mode Suppression Ratio

SMSR

30

40


dB

Threshold Current

Ith


20

30

mA

Operating Current

Iop


150

250

mA

Operation Temperature

Top

15

25

45

Chip output Power

Pf

50

70

90

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

tui.jpg

Tuning Characteristics

tui2.jpg

DFB Linewidth Testing Result

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


L-I Curve

tui3.jpg

Panda PM980 Fiber Nominal Characteristics and Tolerances

Parameters

Specification

Fiber Bend Radius

3cm

Max Attenuation

2.1dB/km

Cladding Diameter

125um

Coating Diameter

250um

Core Cladding Concentricity

≤0.5um

Mode Field diameter

6.6um

NA=0.12;FC/APC (narrow key)


5bd1c181256a2.jpg

Note: The PM fiber and the connector key are aligned to the slow axis,fast axis is blocked


Thermistor specs

Parameters

Value

Unit

Thermistor Type

NTC


Resitance@25deg

10000

ohm

Resistance Tol.±

1

%

Beta 0-50 deg

3375

K

Package Size

912.png

Pin definition

tu3.png


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

30

Operating Current

mA

0

120

250

Diode Forward Current in Pulse operation

mA


450

600

Forward Voltage

V

0.8

1.2

2.0

TEC Current

A

-

-

3

TEC Voltage

V



4

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

795: 795nm

1532: 1532nm

1392: 1392nm

1512: 1512nm

1567: 1567nm

*****

1653.7: 1653.7nm

☆:  Output Power

A:40mW

B:70mW

▽: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