Optical mode converter
First Claim
1. An optical mode converter comprising an optical guide able to transmit an optical signal according to at least one guided mode, characterised in that the optical guide comprises a photosensitive zone irradiated so as to induce a specific index profile along a section of the guide, the said index profile simultaneously defining a longitudinal adiabatic transition and a transverse distribution of the guided mode or modes so as to deconfine the fundamental mode and to maximise the overlap with a higher-order mode.
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Abstract
An optical mode converter comprising an optical guide able to transmit an optical signal in at least one guided mode, characterised in that the optical guide comprises a photosensitive zone inducing a specific index profile along a section of the guide, the said index profile simultaneously defining a longitudinal adiabatic transition and a transverse distribution of the guided mode or modes so as to deconfine the fundamental mode and to maximise the overlap with a higher-order mode.
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Citations
15 Claims
- 1. An optical mode converter comprising an optical guide able to transmit an optical signal according to at least one guided mode, characterised in that the optical guide comprises a photosensitive zone irradiated so as to induce a specific index profile along a section of the guide, the said index profile simultaneously defining a longitudinal adiabatic transition and a transverse distribution of the guided mode or modes so as to deconfine the fundamental mode and to maximise the overlap with a higher-order mode.
Specification