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Products
CAS940F001
VCSEL ChipCAS940F001

940nm VCSEL Array

Part number: CAS940F001

Product Description &Features

• 940nm Vertical-Cavity Surface-Emitting Laser array with output power of 1W

• Very low wavelength-temperature sensitivity

• Chip on submount or heatsink is available upon request

• Other wavelengths, chip dimensions, and emitter patterns are available uponrequest

Typical Applications

• 3D sensing such as gesture recognition, depth imaging, automotive sensing, etc.

• IR illumination

Electro-Optical Characteristics

Parameters

Symbol

Min

Typical

Max

Units

Test Condition

Optical Output Power

Pop

1

1.15

1.3

W

pulse 1.4A 25℃

Threshold Current

Lth

0.15

0.25

0.35

A

pulse 25℃

Operating Current

Lop

1.4

A

pulse 25℃

Differential resistance

Rs

0.35

Ω

pulse 1.4A 25℃

Operating Voltage

Vop

1.8

2

2.2

V

pulse 1.4A 25℃

Slope Efficiency

ηs

0.95

1

1.2

W/A

pulse 1.4A 25℃

Power Conversion Efficiency

PCE

39

43

47

%

pulse 1.4A 25℃

Wavelength

λpeak

932

940

948

nm

pulse 1.4A 25℃

Spectral Width (RMS)

Δλ

2.5

nm

pulse 1.4A 25℃

Beam Full Divergence (D86)

ϕ

18

21

24

°

pulse 1.4A 25℃
Wavelength coefficient

dλ/dT

0.07

nm/°C

pulse 1.4A

* All tests are under pulse condition 1000Hz, 10%D.C. with heatsink temperature 25℃unless otherwise specified.

Typical Performance Curves at 50°C

image.png

image.png

Mechanical Characteristics

ParameterRatingsUnits
Number of emitters203#
Emitter pitch42µm
Chip Width735±15(Front), 745±20(Rear)µm
Chip Length735±15(Front), 745±20(Rear)µm
Chip Height100±10µm
Anode ContactEmission side, Ausurface
Anode bonding110 X548µm x µm
Cathode ContactBackside, Au surface

Chip dimension layout

image.png

Absolute Maximum Ratings

ParameterConditionsUnits
Operating Temperature0 to 70°C
Storage Temperature-40 to 105°C

Stresses beyond the parameters listed under Absolute Maxim Ratings may cause permanent damage to the chips.

Shipping Instruction

The modules are shipped in tape & reeling packaging or Gel-boxes.


Note: No responsibility is assumed for the use of these products. The products canemit Class IV radiation and must be operated with extreme care. Avoid directly viewing the laser beam or exposure to specular reflections. Proper eyewear must be worn at all times when operating. VCSEL Chip in the modules are electrostatic-sensitive device and proper ESD protection is required forhandling.


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