1574nm 50mW High power DFB Narrow linewidth laser diode


Central wavelength 1574nm, Optical output >50mW; Narrow linewidth <200KHz; with TEC; Optical Isolation 40dB; Polarization extinction ratio Slow axis alignment; PM Fiber; FC/APC

Part Number  :  PL-DFB-1574-200-50-A81-PA-NL-C1
Unit Price  :  USD [Please inquire]
Lead time  :  in stock
Inventory quantity   :   [Please inquire]
Stock NO.   :  A80012681
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LD-PD INC DFB laser has the characteristics of ultra-low RIN noise, ultra-narrow linewidth and high output optical power. It is widely used in vehicle-mounted laser radar, optical fiber sensing detection system and high-precision measurement. We can provide customized services and corresponding technical support according to customers' needs.

Index

Symbol

Min

Typ

Maximum

Unit

Condition

Output Power

Po


55


mW

CW

Center Wavelength

λc

1573.5

1574

1574.5

nm

T=25℃

Spectral Linewidth (FWHM)

ΔνL


160

200

KHz

Lorentz linewidth

Side Mode Suppression Ratio

SMSR

40



dB

CW, @Po

Polarization Extinction Ratio

PER

20



dB

Applicable to polarization maintaining, along the slow axis

Relative Intensity Noise

RIN


-163

-155

dB/Hz


Optical Isolation Ratio

ISO

40



dB


TEC Set Temperature

TTEC

15


40

ºC


Threshold Current

Ith


15

30

mA

@TTEC

LD Working Current.

Ib


250

350

mA

CW, Po

LD Working Voltage

Vf


1.5

1.8

V

CW, Po

PD Bias Voltage

VR

4.75

5

5.25

V

Cathode to anode.

PD Current

Imc



2

mA

@Po

PD Dark Current

Imd



1

nA

VR=5V

Working Temperature

To

-40

25

80

⁰C


Storage Temperature

Ts

-40


80

⁰C



Spectrum

t1.jpg


Linewidth Measurement(CW,160.990 kHZ@25deg)

t4.png


L-I Curve

t5.png

Tuning Characteristics

t2.jpg


Polarization Extinction Ratio Test(PM Version)

t3.png


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