... GRIN lenses for telecommunication optics applications ? GTC (gradient telecom) lenses. ... GTC lenses are used in different fiber-optic devices: collimators, couplers, isolators and WDM etc . ... 2.Diameter . GTC lenses diameters are 1.0 mm, 1.8 mm, 3.0 mm and 4.0mm. ... 1.0 mm -3.0 mm diam GTC lenses are supplied in 0.22P, 0.23P, 0.25P, 0.27P and 0.29P length. 4.0 mm diam GTC lenses are supplied in 0.11P length. ... GTC . ... 3 scratches with 5mkm max width and 200mkm max length are allowed . ...
... Astronomy OnLine the World's Biggest Astronomy Event on the WorldWideWeb R. Albrecht 1 , R. West, C. Madsen European Southern Observatory, Garching, Germany M. Naumann Serco c/o European Southern Observatory, Garching, Germany Abstract. This educational programme was organised in a collaboration be tween ESO, the European Association for Astronomy Education (EAAE) and the European Union (EU) during the 4th European Week for Sci entific and Technological Culture. ...
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