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phase matching

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phase matching [′fāz ‚mach·iŋ]
(optics)
A condition in which the polarization wave produced by two or more beams of incident radiation in a nonlinear medium has the same phase velocity as a freely propagating wave of the same frequency; the amplitude of the polarization wave is then greatly enhanced.


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Unlike conventional analog-to-digital converters which often use power hungry external control circuitry to provide interleaving and phase matching of two separate ADCs, the "smart" AT84AD001 makes use of a 3-wire (16-bit data, 3-bit address) serial interface bus, allowing on-chip functionality such as offset and gain auto calibration, and a sampling delay adjust for interleaving two analog channels.
The OPO contains three type-I lithium triborate crystals in series mounted in a temperature control oven, to achieve noncritical phase matching for the signal and idler wavelengths, which are manipulated to produce red and blue light output of 448 and 523 nm.
Connectors terminate interconnect cable assemblies used in Anaren's Digital Electronic Support Measures (DESM) receiver, an electronic system requiring ultra-tight tolerance for phase matching of RF cables.
 
 
 
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