This Product Selection Guide contains information to help select products in the Laser Diodes, Modules category on DigiKey.com
Laser Diodes and Modules are semiconductor devices that can emit a beam of high intensity focused radiation, typically in the infrared, visible or ultraviolet wavelength ranges of the electromagnetic spectrum, coherently (light waves of the same wavelength, phase and direction). With power ranges from less than 1 milliwatt to multiple watts of peak optical power, and a wide range of input voltage, current and case sizes, there are items for nearly all applications.
SelectionCharacteristics
Wavelength: Indicates the nominal wavelength of light produced by the device.
Voltage - Input: Typically represented by a range, this indicates the low and high voltage limits which one can expect standard operation. Voltages outside this range may damage the device and other system components.
Current rating (Amps): Typically this represents the maximum current to which a device will meet its given specifications. Exceeding this current may damage the device and/or other system components.
Power (Watts): Typically this represents the maximum power rating to which a device will meet its given specifications. Exceeding this power rating may damage the device and other system components.
Package/Case: Indicates the type of protective case used on an electronic component to allow easy handling, installation, and protection. This selection was determined to be the closest industry standard applicable to the supplier device packaging. Typically it is best to check the actual dimensions from the datasheet rather than depend on this terminology when designing your circuit.
ProductExamples
| MFR PART # | DPGEW1S09H |
|---|---|
| DIGI-KEY PART # | DPGEW1S09H-ND |
| MANUFACTURER | Excelitas Technologies |
| DESCRIPTION | LASER DIODE 905NM 45.0W RADIAL |
| DATASHEET | Click Here |
| MFR PART # | LTPGAU1S09 |
|---|---|
| DIGI-KEY PART # | 1601-LTPGAU1S09-ND |
| MANUFACTURER | Excelitas Technologies |
| DESCRIPTION | EPI3 PULSE LASER HERMETIC 905NM |
| DATASHEET | Click Here |
| MFR PART # | TPGAD1S09H |
|---|---|
| DIGI-KEY PART # | TPGAD1S09HTR-ND - Tape & Reel (TR) |
| MANUFACTURER | Excelitas Technologies |
| DESCRIPTION | LASER DIODE 905NM 70W 3LCC |
| DATASHEET | Click Here |
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Schematic symbol courtesy of Scheme-it. Please see their website for more information and symbols.
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What to look for when selecting a laser