775nm Narrow Linewidth Laser Diodes     


The PL-NL series Fiber Bragg Grating laser is single frequency laser diode module designed for optical measurement and communication. The laser is packaged in 14-pin standard butterfly package with monitor photodiode and thermo-electric cooler (TEC).



Product model


Name Model Price
775nm PM Narrow Linewidth Laser Diodes   [PDF]  [RFQ]

PL-NL-775-A-A81-PA
Stock NO.: A80111026
[Please inquire]
775nm SM Narrow Linewidth Laser Diodes   [PDF]  [RFQ]

PL-NL-775-A-A81-SA
Stock NO.: A80111025
[Please inquire]


Parameter



Features

● Optical output: 30mW

● Narrow linewidth (Δν < 1MHz)

● Wavelength:775nm @ 25℃

● SM or PM Fiber (ø0.9mm)

● FC-APC connector

● 14-pin butterfly package

● Internal monitor PD and TEC

● Low power consumption 

E/O Characteristics

Optical Characteristics (at 25 °C laser temperature)

Parameter

Symbol

Condition

Min.

Typical

Max.

Unit

Center Wavelength

λc

TL=1535℃ CW

770

775

780

nm

Peak Optical Output Power

PO

-

-

20

30

mW

Spectral linewidth

LW

-

-

1

10

MHZ

Relative Intensity Noise

RIN



-145


db/HZ

SMSR

SMSR

CW

40

50

-

dB

PER

ER

-

20

-

-

dB

Wavelength drift with case (-10 to 70 ºC) temperature

△λ

TL=1535℃

-

-

±1

pm

Wavelength Temperature coefficient

Δλ/ΔT

TL=1535℃

-

100


pm/ºC

Wavelength Current coefficient

Δλ/ΔΙ

-

-

1


pm/mA

Mode Hope free Range

ΔI



30


mA


Electrical Characteristics (at 25 °C laser temperature)

Parameter

Symbol

Condition

Min.

Typical

Max.

Unit

Threshold Current

ITH

-

-

40


mA

Operating current

Iop

CW

-

60

90

mA

TEC set temperature

Ts

-

15

-

35

Laser Forward Voltage

VF

CW output power@5 mW

-

1.3

2.5

V

Monitor Dark Current

ID

Pf=5mw VRD=5V

-

-

0.1

μA

Thermistor Current

ITC

-

10

-

100

μA

Thermistor Resistance

RTH

TLD=25°C, B=3900±100K 

9.5

10

10.5

TEC Current

ITEC

IF=EOL, TC=70°C

-

-

1.2

A

TEC Voltage

VTEC

IF=EOL, TC=70°C

-

-

2.4

V


Spectrum

T1.jpg

L-I Curve

1050.png

775nm Wavelength Stability Measurement

71fb496232f7e9d7b2290399d9620c3b.jpeg


Beam Quality(M2,2D/3D Beam)

t1.jpg


t2.jpg


t3.jpg


Fiber Pigtail Specifications 

Parameters

Description

Fiber Type

HI780/PM780fiber

Jacket Type

900μm loose tube

Pigtail Length

1.0±0.1m

Connector Type

FC/APC

PM fiber Connector Orientation

Please see the right figure

MM.jpg

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


Package Size

9702.png

Pin definition

09fe7eec-b56d-4024-912d-c2729089b7d8.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

60

90

Forward Voltage

V

0.8

1.2

1.8

TEC Current

A

-

1.2

1.4

Reverse VoltageLD

V

-

-

1.8

Application

● Laser interference experiment

● Optical Test and Instrumentation

● Sensors

Ordering Info

PL-NL-□□□□-☆-A8▽-XX

□□□□:Wavelength

0775: 775nm

1550: 1550nm

1555: 1555nm

*****

1560: 1560nm

☆ :Output Power

A:20mW

B:30mW

▽:Linewidth

1:<1MHZ

XX: Fiber and Connector Type

SA=HI780+ FC/APC

SP=HI780+ FC/PC

PP=PM780 Fiber+ FC/PC

PA=PM780 Fiber+ FC/APC




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