Optical waveguide device with enhanced stability

Details Optical waveguide device with enhanced stability Optical waveguide device with enhanced stability

G - Physics

02

B

G02B 6/10 (2006.01) G02B 6/12 (2006.01) G02F 1/00 (2006.01) G02F 1/035 (2006.01)

Patent

CA 2303674

The invention is an optical waveguide device (10) and a method for forming the device which provides enhanced stability. The device includes a pyroelectric substrate (11) such as lithium niobate where the bulk resistivity of at least a portion of the substrate is reduced to 10 13 ohm cm or less by heating the substrate in a reducing atmosphere. This causes the substrate to be less susceptible to temperature variants which can otherwise result in do bias drift and variation.

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