785nm SM Narrow Linewidth Laser Diode


Central wavelength 785nm; Optical output 10mW; Narrow linewidth <1MHz; with TEC; Pigtail Length 1.0±0.1m; SM780; FC/APC

Part Number  :  PL-NL-785-A-A81-SA-PZT
Unit Price  :  USD [Please inquire]
Lead time  :   [Please inquire]
Inventory quantity   :   [Please inquire]
Stock NO.   :  A80111037
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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).

Optical Characteristics (at 25 °C laser temperature)

Parameter

Symbol

Condition

Min.

Typical

Max.

Unit

Center Wavelength

λc

TL=1535 CW

780

785

790

nm

Peak Optical Output Power

PO

-

-

10

20

mW

Spectral linewidth

LW

-

-

1

10

MHZ

Side-mode Suppression Ratio

SMSR

CW

30

40

-

dB

Optical Isolation

-

-10 < TC < +70 ºC

30

-

-

dB

Polarization Extinction Ratio

ER

-

20

-

-

dB

Relative Intensity Noise

RIN

CWoutput power 5mW

-

-

-135

dB

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

λ

TL=1535

-

-

±30

pm

Wavelength Temperature coefficient

Δλ/ΔT

TL=1535

-

65

80

pm/ºC

Wavelength Current coefficient

Δλ/ΔΙ

-

-

1.0

2

pm/mA

Tuning Range(For PZT Version)

Δf


0.5


1

nm

PZT Driving Voltage( PZT Version)

VT


0


150

V

Mode Hope free Range

ΔI



3


mA


Electrical Characteristics (at 25 °C laser temperature)

Parameter

Symbol

Condition

Min.

Typical

Max.

Unit

Threshold Current

ITH

-

-

45

65

mA

Operating Current

Iop

CW

-

80

100

mA

Slope Efficiency

ƞ

CW output power 30 mW

0.064

0.1

0.4

mW/mA

TEC set temperature

Ts

-

15

-

35

Laser Forward Voltage

VF

CW output power@30 mW

-

1.3

2.5

V

Input Impedance

ZIN


22

25

28

Ω

Monitor Dark Current

ID

-

-

-

0.1

μA

Thermistor Current

ITC

-

10

-

100

μA

Thermistor Resistance

RTH

TLD=25°C

9.5

10

10.5

TEC Current

ITEC

TLD=25°C,   TC=70°C

-

-

1.8

A

TEC Voltage

VTEC

IF=EOL, TC=70°C

-

-

3.5

V

TEC capacity

ΔT

Tc = 70℃

-

-

50

Thermistor temperature

-

-

-

-

100


Spectrum 

W}U0[42DO[@B48`)$HO175B.png

L-I Curve

785.png


Linewidth Testing Result

BFBNLC53A310D.png


Wavelength VS PZT Voltage

 UPXJ)E}5KH2{Z9Z16(73H}B.jpg


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

t1.jpg


t2.jpg


t3.jpg


Fiber Pigtail Specifications 

Parameters

Description

Fiber Type

PM  fiber

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


Related



Name Model Price
785nm PM Narrow Linewidth Laser Diode [PDF]

PL-NL-785-A-A81-PA-PZT

[Please inquire]

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