نتایج جستجو برای: holmium chloride
تعداد نتایج: 89188 فیلتر نتایج به سال:
INTRODUCTION The rapid development and invention of ever more technologically advanced ureterorenoscopes as well as other instruments used in fragmenting ureteral stones have made the traditional surgical treatment of ureterolithiasis very rare. MATERIAL AND METHODS We investigated 727 patients treated for ureterolithiasis. 769 ureteroscopic lithotripsies (URSL) with the holmium laser were pe...
We investigate the operation of holmium-doped fibre amplifiers (HDFAs) in the 2.1 µm spectral region. For the first time we demonstrate a diode-pumped HDFA. This amplifier provides a peak gain of 25 dB at 2040 nm with a 15 dB gain window spanning the wavelength range 2030 - 2100 nm with an external noise figure (NF) of 4-6 dB. We also compare the operation of HDFAs when pumped at 1950 nm and 20...
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