Patent ID: 7116846
Filing Date: 2006-10-03
Classification: G02B,G02F

Abstract:
1. An athermal fiber Bragg grating assembly, comprising: a platform of a first material having a first coefficient of thermal expansion (α a stick of a second material having a second coefficient of thermal expansion (α a fiber Bragg type grating of a third material having an effective third coefficient of thermal expansion (α said second end of said stick is fixed to said first end of said grating, said first end of said stick is fixed to said first attachment location, and said second end of said grating is fixed to said second attachment location; said stick has an essentially same cross-sectional stick-area exhibited along said stick-length, said grating has a cross-sectional grating-area at its said first end, and said stick-area is equal to or less than said grating-area; and said coefficients (α