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Laser Diode Principles

From Power Technology, Inc.

A number of questions and misconceptions surround the laser diode. Are all laser diode specifications identical? Do single-mode diodes always operate as single-mode? What effect does temperature change have on wavelength and optical power? The following explores these and other common diode questions and principles.

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Diode Lasers
Diode lasers use light-emitting diodes to produce stimulated emissions in the form of coherent light output. They are also known as laser diodes.
Lasers
Lasers are devices that produce intense beams of monochromatic, coherent radiation. The word "laser" is an acronym for Light Amplification by Stimulated Emission of Radiation.
Laser Mounts
Laser mounts are devices that keep a laser in position on an optical table.
Solid State Lasers
Solid state lasers use a transparent substance (crystalline or glass) as the active medium, doped to provide the energy states necessary for lasing.  Solid state lasers are used in both low and high power applications.
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Power Technology, Inc. - 515nm 40mW IQ Green Laser Diode Module
The Instrument Quality (IQ) Series for green wavelengths uses a Green Diode Laser instead of a traditional Diode Pumped Solid State(DPSS) configuration. This makes the laser have low noise... (read more)
Photodigm, Inc. - DBR Laser Superior Performance and Reliability
High-Power, Spectroscopy-Certified Laser Diodes For Precision Applications The Photodigm family of high-power edge-emitting Distributed Bragg Reflector (DBR) lasers is based on Photodigm's... (read more)
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