SLD322XT-21 datasheet(2/7 Pages) SONY

2 / 7 page

– 2 –

SLD322XT

Electrical and Optical Characteristics

(Tth: Thermistor temperature, Tth = 25°C)

Handling Precautions

Eye protection against laser beams

The optical output of laser diodes ranges from

several mW to 3W. However the optical power

density of the laser beam at the diode chip

reaches 1MW/cm2. Unlike gas lasers, since

laser diode beams are divergent, uncollimated

laser diode beams are fairly safe at a laser

diode. For observing laser beams, ALWAYS use

safety goggles that block infrared rays. Usage of

IR scopes, IR cameras and fluorescent plates is

also recommended for monitoring laser beams

safely.

Item

Symbol

Conditions

Min.

Typ.

Max.

Unit

Ith

Iop

Vop

λp

Imon

θ⊥

θ//

∆X, ∆Y

∆φ⊥

ηD

Rth

Threshold current

Operating current

Operating voltage

Wavelength∗

Monitor current

Radiation angle

Positional accuracy

Differential efficiency

Thermistor resistance

PO = 0.5W

VR = 10V

PO = 0.5W

Tth = 25°C

790

0.15

0.5

0.18

0.75

2.1

0.8

0.9

0.3

1.2

3.0

840

3.0

±100

±3

degree

µm

degree

W/A

Ω

Perpendicular

Parallel

Position

Angle

∗ Wavelength Selection Classification

Type

SLD322XT-1

SLD322XT-2

SLD322XT-3

Wavelength (nm)

795 ± 5

810 ± 10

830 ± 10

Type

SLD322XT-21

SLD322XT-24

SLD322XT-25

Wavelength (nm)

798 ± 3

807 ± 3

810 ± 3

ATC

Safety goggles for

protection from

laser beam

IR fluorescent plate

Optical

material

Optical power output control device

temperature control device

Lens

Laser diode

Optical boad

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