Diode Lasers Specifications

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Laser Type

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	Laser Diodes		Laser diodes use light-emitting diodes to produce stimulated emissions in the form of coherent light output. They are also known as diode lasers.
	Laser Diode Modules		Laser diode modules use light-emitting diodes to produce stimulated emissions in the form of coherent light output and include integrated beam optics and electrical systems.
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	Tunable Laser		Tunable lasers have an external cavity that can be adjusted to emit one of several different wavelengths, usually on the ITU-Grid.
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Laser Output

	Laser Output:
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	Continuous Wave		The laser output is continuous.
	Pulsed		The laser output is pulsed.
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	Laser Wavelength:
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	Ultraviolet		The laser has output corresponding to the ultraviolet region of the spectrum.  Ultraviolet is considered the wavelength range from 1 nm to 390 nm.
	Violet		The laser has output corresponding to the violet region of the spectrum.  Violet is considered the wavelength range from 390 nm to 455 nm.
	Blue		The laser has output corresponding to the blue region of the spectrum.  Blue is considered the wavelength range from 455 nm to 492 nm.
	Green		The laser has output corresponding to the green region of the spectrum.  Green is considered the wavelength range from 492 nm to 577 nm.
	Yellow		The laser has output corresponding to the yellow region of the spectrum. Yellow is considered the wavelength range from 577 nm to 597 nm.
	Orange		The laser has output corresponding to the orange region of the spectrum. Orange is considered the wavelength range from 597 nm to 622 nm.
	Red		The laser has output corresponding to the red region of the spectrum. Red is considered the wavelength range from 622 nm to 780 nm.
	Infrared		The laser has an output which corresponds to the infrared (IR) portion of the electromagnetic spectrum. Infrared is the wavelength range from .78 μm to 1000 μm.
	Other		Other unlisted or specialized wavelengths.
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	Wavelength Range		The wavelength(s) the laser produces.
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	Laser Power		Laser power is measured in watts (W) and indicates the strength of a laser beam. A watt is one joule of energy per second.
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Beam Specification

	Beam Area		Beam area refers to the area of the beam when exiting the laser.
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	Beam Divergence		Beam divergence refers to the change in beam diameter as a function of distance from the laser.
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	Fiber Pigtailed		Lasers have an optical-fiber pigtail that is aligned and attached precisely for optimum coupling efficiency.
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More Specs

	Pulse Energy		The laser's energy per pulse.
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	Pulse Length		The pulse's duration.
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	Repetition Rate		The number of pulses per second.
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	Operating Current Range		Operating current range is the range of current over which the laser is designed to operate.
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	Operating Temperature Range		Operating temperature range is the range of temperature over which the laser is designed to operate.
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	Features
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	Thermoelectric Cooling		For better performance, the laser uses a thermoelectric cooler, a solid-state device which converts current into a temperature difference between two junctions. These thermoelectric junctions can be connected in series or in parallel to increase their overall temperature drop or power.
	Array		Laser arrays contain multiple lasers.
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	CDRH Classification
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	Class I		Class I lasers are not hazardous for continuous viewing, or are designed to prevent human access to laser radiation. Class I lasers include both low-power lasers and embedded, high-powered lasers. Applications include laser printers.
	Class II		Class II lasers emit visible light which, because of the normal human aversion response, does not normally present a hazard. If viewed directly for extended periods of time, however, Class II lasers can cause eye injuries.
	Class IIa		Class IIa lasers emit visible light that is not intended for viewing, and that under normal operating conditions will not injure the eye if viewed for less than 1000 seconds. Barcode scanners use Class IIa lasers.
	Class IIIa		Class IIIa lasers will not normally injure the eye if viewed momentarily, but present a hazard if viewed using collecting optics.
	Class IIIb		Class IIIb lasers present an eye and skin hazard if viewed directly. This includes both intrabeam viewing and specular reflections. Class IIIb lasers do not produce a hazardous diffuse reflection except when viewed at close proximity.
	Class IV		Class IV lasers present an eye hazard from direct, specular and diffuse reflections. In addition, they may pose a fire hazard and burn skin.
	Other		Other unlisted CDRH classifications.
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