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IEEE Std 2065-2020 pdf free download

IEEE Std 2065-2020 pdf free download.IEEE Guide for Parameter Requirements and Test Method for Industrial Fiber Laser.
2. Normative references
The following referenced documents are indispensable for the application of this document (i.e.. they must be understood and used, so each referenced document is cited in text and its relationship to this document is explained). For dated references, only the edition cited applies. For undated references, the latest edition of the referenced document (including any amendments or corrigenda) applies.
IEC 60825-1:2014, Safety of laser products—Part 1: Equipment classification and requirements.
ISO/TR 11146-3, Lasers and laser-related equipment- —Test methods for laser beam widths, divergence angles and beam propagation ratios—Part 3: Intrinsic and geometrical laser beam classification, propagation and details of test methods.4
3. Definitions
For the purposes of this document, the following terms and definitions apply. The IEEE Standards Dictionary Online should be consulted for terms not defined in this clause.
beam attenuator: A device used to reduce laser radiation to or below a specified level. I3eam attenuators selected to measure beam-related parameters shall not affect the beam energy distribution.
beam diameter: The diameter of the circular contour in the beam cross section at which the laser power (energy) density is I !e2of the peak maximum (IEC 60825-1:201 4).’
beam expander: A combination of optical elements is capable of increasing laser beam diameter.
beani quality: A measure used to evaluate the beam focusing ability. In this standard, the laser beam quality is evaluated by the M2 factor, and M2 is the ratio of the product of the beam waist radius and the beam divergence angle to the product of an ideal Gaussian beam waist radius and beam divergence angle.
continuous output power: The output power of the laser under the given operation condition and working current.
continuous wave (CW) fiber lasers: A fiber laser that operates in the continuous mode instead of the pulsed mode. The continuous output period is not less than 0.25 s.
electrical-optical conversion efficiency: Under the operation condition, the ratio of the fiber laser output power to the input electrical power. which is usually expressed in percentage.
fiber lasers: Lasers using a glass fiber incorporating rare earth elements as a laser medium.
output fiber core diameter: The diameter of high refractive index glass core at fiber center.
output power instability: The ñuctuation of the laser output power over a specific time interval (more than I s) under given operation conditions.IEEE Std 2065-2020 pdf free download.

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