777nm DFB Laser diode for CPT Application     


The PL-DFB-777-A-A81 777nm 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
777nm DFB PM Laser diode   [PDF]  [RFQ]

PL-DFB-0777-A-A81-PA
Stock NO.: A80012010
[Please inquire]
777nm DFB SM Laser diode for Oxygen atom analysis   [PDF]  [RFQ]

PL-DFB-0777-A-A81-SA
Stock NO.: A80012009
[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

776.0

777.0

778.0

nm

Side Mode Suppression Ratio

SMSR

30

40


dB

Threshold Current

Ith


45

50

mA

Operating Current

Iop


150

250

mA

Chip output Power

Pf

20

35

50

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

Fiber+Connector

HI780+FC/APC


Spectrum

777.png


DFB Linewidth Testing Result

PT Linewidth.jpg


L-I Curve

778.png

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

150

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

● CPT Application

Ordering Info

PL-DFB-□□□□-☆-A8▽-XX

□□□□:Wavelength

777: 777.0nm

1270: 1270nm

1532: 1532nm

1392: 1392nm

1512: 1512nm

1567: 1567nm

*****

1653.7: 1653.7nm

☆: Output Power

A: 30mW

B: 50mW

▽: Wavelength Tolerance

1: ±1nm

2: ±2nm

XX: Fiber and Connector Type

SA=HI780+ FC/APC

SP=HI780+ FC/PC

PP=PM 850Fiber+ FC/PC

PA=PM 850Fiber+ FC/APC



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