| 摘要 |
An optical arrangement designed to change the directional orientation of a light path using an optical fiber is useful e.g. to provide a double pass through an optical element such as an etalon, or for a multi-port coupler. The arrangement has a high-NA optical fiber section with a bend of a radius less than the 25 mm typical for a single mode fiber. The free ends of the fiber section are mounted in a ferrule for a splice-free optical coupling with another optical element or waveguide.
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