| 摘要 |
An optical filter (1) having at least one optical fiber component (2) and a thermal compensation device (3) which includes a first, second and third member (4), (5), (6) in which the thermal compensation device has a first an d a second fixing point (7), (8), the first, second and third members are made from materials having first, second and third thermal expansion coefficients , the optical fiber component is attached to the thermal compensation device a t the first and the second fixing points thus defining a composite thermal expansion. The optical filter is such that the composite thermal expansion compensates for thermal behavior of the optical fiber component.
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