1542nm 40mW high power DFB Narrow linewidth laser diode


Central wavelength 1542nm, Optical output 40mW; Narrow linewidth 200KHz; with TEC; Optical Isolation 40dB; Polarization extinction ratio ...

Part Number  :  PL-DFB-1542-200-40-A81-PA-NL
Unit Price  :  USD [Please inquire]
Lead time  :  in stock
Inventory quantity   :   [Please inquire]
Stock NO.   :  
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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

40

60


mW

CW

Center Wavelength

λc

1541.5


1542

1542.5

nm

T=25℃

Spectral Linewidth (FWHM)

ΔνL


200

300

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



300

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

1542.jpg


Linewidth Measurement(CW,148.690 kHZ@25deg)

1542.3.jpg


L-I Curve

1542.1.jpg

Tuning Characteristics

1542.2.jpg


Polarization Extinction Ratio Test(PM Version)

1542.4.jpg


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