Very high numerical aperture light transmitting device

Details Very high numerical aperture light transmitting device Very high numerical aperture light transmitting device

1995-07-21

1998-09-22

Lee, John D.

Optical waveguides

Having particular optical characteristic modifying chemical...

Of waveguide core

385144, 385123, G02B 616

Patent

active

058127291

ABSTRACT:
A new light-transmitting device using a SCIN glass core and a novel calcium sodium cladding has been developed. The very high index of refraction, radiation hardness, similar solubility for rare earths and similar melt and viscosity characteristics of core and cladding materials makes them attractive for several applications such as high-numerical-aperture optical fibers and specialty lenses. Optical fibers up to 60 m in length have been drawn, and several simple lenses have been designed, ground, and polished. Preliminary results on the ability to directly cast optical components of lead-indium phosphate glass are also discussed as well as the suitability of these glasses as a host medium for rare-earth ion lasers and amplifiers.

REFERENCES:
patent: 4110002 (1978-08-01), Klein et al.
patent: 4305757 (1981-12-01), Yamashita
patent: 4476233 (1984-10-01), Kodama
patent: 4484950 (1984-11-01), Hinkebein
patent: 4699889 (1987-10-01), Sales et al.
patent: 4871230 (1989-10-01), Yamashita et al.
patent: 5526369 (1996-06-01), Hayden et al.

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