The smart Trick of CLBO Crystal That Nobody is Discussing
The smart Trick of CLBO Crystal That Nobody is Discussing
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The crucial element trouble of ultraviolet coherent light-weight resource largely concentrates on the event of nonlinear optical frequency conversion crystal in ultraviolet band. The nonlinear optical crystal is without doubt one of the circumstances for frequency transformation, so the growth, measurement, hurt resistance, conversion effectiveness and allowable parameter variety of nonlinear optical crystal are essential Progressively more.
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Each the 1040 nm and 1078 nm laser originate from a person twin-wavelength Yb-doped fiber laser. Each laser is amplified by levels of fiber amplifier and Yb-doped supplies amplifier, respectively.
On one other facet, the facility scaling of your NIR laser is an additional element to increase the typical electricity in the 193-nm DUV laser. Due to the insufficient the high-ability amplification Remedy of the NIR laser (such as at 1553 nm), nonlinear frequency processes like optical parameter oscillation (OPO) can be applied to produce a wavelength converter by shifting the wavelength from 1 μm to the specified wavelength along with acquiring relative larger electric power [21]. Recently, a diamond Raman laser showed its capacity in accomplishing a substantial electricity plus a higher conversion efficiency at the 1st Stokes in the 1-μm laser [22,23], which implies the likelihood for being used while in the 193-nm DUV laser technology thanks to its higher Raman get and large frequency shift.
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The heart beat length of the second Stokes gentle was shortened to 5 ns as revealed in Figure 7a, a single-shot photo through the oscilloscope, which can be a standard phenomenon in Raman laser [44] though the heartbeat length from the pump laser was ten ns.
Cesium Lithium Borate (CsLiB6O10 or CLBO) is the best non-linear crystal which generates ultraviolet harmonics on the Nd:YAG basic laser wavelength. As a way to enhance the destruction threshold, small CLBO floor roughness, by ultra-precision machining, is needed. Because the CLBO crystal click here has easy hydroscopic response and micro scratches in machining, ultra-precise machining of the CLBO crystal is a complicated complex difficulty.
The beam profile revealed in Determine 7b shown a great beam top quality as among the list of merits of Raman laser, which might be effective to crank out a 193-nm DUV laser with a top quality beam.
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