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1550nm FP Laser Diode

Model No. LD1550-20B

Features

  • Uncooled 1550nm FP laser diode with MQW structure

  • 20 mW CW operation at -40~70 oC

  • High temperature operation without TE cooler

  • Hermetically sealed active component

  • TO-18 with a flat window cap package

  • Built-in  InGaAs monitor photodiode

Absolute Maximum Ratings (Tc=25oC) Ratings(

Parameter

Symbol

Value

Unit
Optical Output Power

Po

     20 (CW)

mW
LD Reverse Voltage

VRLD

2

V

LD Forward Current

IFLD

125

mA

PD Reverse Voltage

VRPD

10

V

PD Forward Current

IFPD

2.0

mA

Operating Temperature

Topr

-40~+70

oC

Storage Temperature

 Tstg

-40~+100

oC

 

Optical and Electrical Characteristics (Tc=25oC)
Parameter
Symbol
Min.
Typ.
Max.
Unit
Test condition

Slope Efficiency

SE

0.2

0.28

-

mW/mA

CW, Po =20 mW

Threshold Current

Ith

-

10

15

mA

CW, Po =20 mW

Operation Current

Iop

-

80

115

mA

CW, Po =20mW

Peak Wavelength

l

1530

1550

1570

nm

CW, Po =20 mW

Spectral Width

Dl

-

2

5

nm

CW, Po =20 mW

Beam Divergence

θ∕∕

-

25

-

deg.

CW, Po =20 mW, FWHM

θ┴

-

40

-

PD Monitor Current

Im

0.4

-

-

mA

CW, Po =20 mW

 

Pin Assignment & Mechanical Outline:

 

 Note: The above specifications are subject to change without notice. 
 
 
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Information contained herein is considered typical data. Lasermate Group, Inc. reserves the right to change or modify specifications of products at any time without notice.

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