Light modulation in whispering-gallery-mode resonators

G - Physics – 02 – B

Patent

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Details

G02B 5/18 (2006.01) G02F 1/01 (2006.01) G02F 1/313 (2006.01) G02F 1/035 (2006.01)

Patent

CA 2412384

Techniques to modulate light by using a whispering gallery mode optical resonator. The light modulator uses an optical coupler (121) to input an optical beam (104), from a laser (102), into a wispering gallery mode resonator formed of an Electro-Optic material (110). An electronic driving circuit (140) is coupled to supply the electrical wave to the electrical coupler (130). A control signal (150) can be fed into the circuit (140) to modulate the electrical wave. This modulation is then transferred to the output coupler (122) which provides a modulated optical output (124).

L'invention concerne des techniques servant à moduler une lumière au moyen d'un résonateur optique à mode de galerie. Ce modulateur de lumière utilise un coupleur optique (121) pour faire pénétrer un faisceau optique (104) provenant d'un laser (102), dans un résonateur à mode de galerie formé d'un matériau électro-optique (110). Un circuit d'excitation électronique (140) est couplé afin de fournir une onde électrique au coupleur électrique (130). Un signal de commande (150) peut être injecté dans le circuit (140) pour moduler l'onde électrique. Cette modulation est ensuite transmise au coupleur de sortie (122) qui fournit ainsi un signal de sortie optique modulé (124).

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