Sony SLD1132VS Datasheet

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SLD1132VS

E94Y01C98-PS

635nm Red Laser Diode

Description

The SLD1132VS is a red laser diode designed for laser pointers. Its wavelength (635nm typ.) is shortened by 35nm and visibility is increased by approximately 7 times, compared to the conventional visible laser diode (670nm typ.).

Features

• Short wavelength (635nm typ.)

• Small package (φ5.6)

• Fundamental traverse/single longitudinal mode

Applications

Laser pointers

Structure

• AlGaInP quantum well structure laser diode

• PIN photo diode for optical power output monitor

Recommended Optical Power Output

3mW

Absolute Maximum Ratings

• Optical power output Po 5 mW

• Reverse voltage VR LD 2 V

PD 15 V

• Operating temperature Topr –10 to +40 °C

• Storage temperature Tstg –40 to +85 °C

Sony reserves the right to change products and specifications without prior notice. This information does not convey any license by any implication or otherwise under any patents or other right. Application circuits shown, if any, are typical examples illustrating the operation of the devices. Sony cannot assume responsibility for any problems arising out of the use of these circuits.

M-274

COMMON

Connection Diagram Pin Configuration

Bottom View

1. LD cathode

2. PD anode

3. COMMON

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SLD1132VS

Electrical and Optical Characteristics (Tc = 25°C) Tc: Case temperature

Item Threshold current Operating current Operating voltage Wavelength

Radiation angle

Positional accuracy

Differential efficiency Astigmatism Monitor current

Ith Iop Vop

λ θ⊥ θ//

∆X, ∆Y, ∆Z ∆φ ∆φ

ηD As Imon

Po = 3mW Po = 3mW Po = 3mW

Po = 3mW

Po = 3mW | Z // – Z⊥ | Po = 3mW, Vr = 5V

625

0.15

0.05

50 60

2.4

635

0.35

0.10

70 80

3.0

645

40 12

±80

±3 ±4

0.8 20

0.30

mA mA

nm degree degree

µm degree degree

mW/mA

µm

Symbol Conditions Min. Typ. Max. Unit

Perpendicular Parallel Position

Angle

Handling Precautions

(1) 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.

Safety goggles for protection from laser beam

IR fluorescent plate

Optical material

Lens

Laser diode

Optical board

Optical power output control device Temperature control device

(2) Prevention of surge current and electrostatic discharge Laser diode is most sensitive to electrostatic discharge among semiconductors. When a large current is passed through the laser diode even for an extremely short time (in the order of nanosecond), the strong light emitted from the laser diode promotes deterioration and then laser diodes are destroyed. Therefore, note that the surge current should not flow the laser diode driving circuit from switches and others. Also, if the laser diode is handled carelessly, it may be destructed instantly because electrostatic discharge is easily applied by a human body. Be great careful about excess current and electrostatic discharge.

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