Optoelectronic integrated circuits and method of fabricating and

Details Optoelectronic integrated circuits and method of fabricating and Optoelectronic integrated circuits and method of fabricating and

1994-07-14

1996-06-11

Healy, Brian

Optical waveguides

Integrated optical circuit

385 15, 385 16, 385 32, 385129, 385131, 385132, 385 1, 385 2, 385 43, 437 16, 437 20, 437 51, G02B 612, H01L 2170

Patent

active

055264492

ABSTRACT:
An optical circuit and a method for substantially eliminating radiation losses associated with optical integrated circuits and, in particular, bends in optical waveguides, is disclosed. The circuit and waveguide are fabricated on a substrate having a periodic dielectric structure. The periodic dielectric structure exhibits a range of frequencies of electromagnetic radiation which cannot propagate into the structure. The range of frequencies is known as a photonic band gap or frequency band gap. Radiation at a frequency within the frequency band gap of the structure is confined within the circuit and waveguide by the periodic dielectric structure surrounding the circuit and waveguide. Radiation losses are substantially eliminated.

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