G - Physics – 02 – B
Patent
G - Physics
02
B
G02B 5/18 (2006.01) C03C 17/34 (2006.01) G02B 6/10 (2006.01) G02B 6/124 (2006.01) G02B 6/132 (2006.01) G02B 6/12 (2006.01)
Patent
CA 2382050
An integrated planar Bragg grating is fabricated by depositing layers of material onto a negative expansion substrate (100) to form a waveguide (120), which is held in mechanical tension with the substrate (100). A Bragg grating (200) is then formed in the waveguide (120). As the temperature of the waveguide (120) increases, the mechanical tension between the waveguide (120) and the substrate (100) is relieved, such that the peak reflection wavelength of the Bragg grating (200) remains nearly constant.
L'invention concerne un réseau de Bragg plan intégré, fabriqué par dépôt de couches de matière sur un substrat (100) à dilatation négative afin de former un guide d'ondes (120), qui est gardé en tension mécanique avec le substrat (100). Un réseau de Bragg (200) est alors formé dans le guide d'ondes (120). Au fur et à mesure que la température du guide d'onde (120) augmente, la tension mécanique entre le guide d'onde (120) et le substrat (100) est relâchée, de telle manière que la longueur d'onde de réflexion de crête du réseau de Bragg (200) reste presque constante.
Gadkaree Alka K.
Gadkaree Kishor P.
Corning Incorporated
Gowling Lafleur Henderson Llp
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