Lens arrangement for enhancing the coupling of light shifted by

Details Lens arrangement for enhancing the coupling of light shifted by Lens arrangement for enhancing the coupling of light shifted by

1999-07-22

2000-12-05

Spyrou, Cassandra

Optical: systems and elements

Polarization without modulation

By relatively adjustable superimposed or in series polarizers

385 31, G02B 2728, G02B 626

Patent

active

061574856

ABSTRACT:
An optical device that includes a filter element which affects a beam incident thereon by shifting it is provided with a lens, wherein a distance between the lens end face and the filter is different than the distance between the lens end face and the input waveguide. By ensuring an appropriate difference in distance, optimum coupling is achieved even in view of the beam shift from the filter.

REFERENCES:
patent: 5845023 (1998-12-01), Lee

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