Fabrication of difraction gratings for optical signal devices an

Details Fabrication of difraction gratings for optical signal devices an Fabrication of difraction gratings for optical signal devices an

1998-02-20

2000-02-08

Palmer, Phan T. H.

Optical waveguides

With optical coupler

Input/output coupler

385 4, 385129, 385 10, 385 24, 385 43, 430321, 359566, G02B 634

Patent

active

060235454

ABSTRACT:
Method of fabricating a wavelength filter on a substrate in which a phase mask having corrugations is placed over a polymeric substrate composed of at least two comonomers having different indexes of refraction and passing light through the phase mask to form light into two beams corresponding to different diffraction orders to form refractive gratings capable of reflecting light of a selective wavelength. Optical signal devices employing gratings fabricated in this manner are also disclosed.

REFERENCES:
patent: 5101297 (1992-03-01), Yoshida et al.
patent: 5367588 (1994-11-01), Hill et al.
patent: 5574807 (1996-11-01), Snitzer
patent: 5716762 (1998-02-01), Nishii et al.

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