Hollow core multi-mode interference optical device

Details Hollow core multi-mode interference optical device Hollow core multi-mode interference optical device

2008-01-29

2008-01-29

Connelly-Cushwa, Michelle (Department: 2874)

Optical waveguides

With optical coupler

Particular coupling function

C385S003000

Reexamination Certificate

active

10533433

ABSTRACT:
A hollow core multi-mode interference (MMI) device is described that comprises a multi-mode waveguide (10, 14) optically coupled to at least two fundamental mode waveguides (8, 12, 16). The device is characterised in that it comprises a means for varying the internal cross-sectional dimensions of a portion of one or more of said at least two fundamental mode waveguides. In particular, the side wall of a fundamental mode waveguide having a substantially square cross-section can be moved using micro-electro mechanical systems (MEMS). Various optical routing devices incorporating such MMI devices are described.

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T. Miura et al, “Modeling and Fabrication of Hollow Optical Waveguide for Photonic Integrated Circuits”Jpn. J. Appl. Phys., vol. 41, Part 1, No. 7B, Jul. 2002, pp. 4785-4789.

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