Methods of altering the resonance of waveguide micro-resonators

Details Methods of altering the resonance of waveguide micro-resonators Methods of altering the resonance of waveguide micro-resonators

G - Physics

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G02B 6/122 (2006.01) B81B 3/00 (2006.01) G02B 6/10 (2006.01) G02B 6/12 (2006.01) G02B 6/126 (2006.01) G02B 6/13 (2006.01) G02B 6/132 (2006.01) G02F 1/01 (2006.01) G02B 6/35 (2006.01) G02F 1/313 (2006.01)

Patent

CA 2423008

Methods of tuning, switching or modulating, or, in general, changing the resonance of waveguide micro-resonators. Changes in the resonance can be brought about, permanently or temporarily, by changing the size of the micro- resonator with precision, by changingthe local physical structure of the device or by changing the effective and group indices of refraction of the mode in the micro-resonator. Further changing the asymmetry of the index profile around a waveguide can alter the birefringence of the waveguide and allows one to control the polarization in the waveguide. This change in index profile may be used to change the polarization dependence or birefringence of the resonators.

L'invention concerne des procédés d'accord, de commutation ou de modulation, ou, en général, de modification de la résonance de micro-résonateurs à guide d'onde. Les modifications de la résonance peuvent être obtenues, de manière permanente ou temporaire, par une modification précise de la dimension du micro-résonateur, par une modification de la structure physique locale du dispositif ou par une modification des indices de réfraction effectifs et de groupe du mode du micro-résonateur. Le changement d'asymétrie du profil de l'indice autour d'un guide d'onde peut modifier la biréfringence du guide d'onde et permet de régler la polarisation dans le guide d'onde. Ce changement de profil d'indice peut être utilisé pour modifier la dépendance à la polarisation ou la biréfringence des résonateurs.

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