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US 2002/0172462 A1Published application
Method and apparatus for thermally tuning an optical filter
OwnerQian Tao, Bing Zhou +1inventors
InventorsQian Tao, Bing Zhou, Jun Tian
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Abstract
A mechanical amplifier is disclosed for thermally tuning an optical filter. Two arms retain an optical fiber, and an expander is placed between the two arms. Ends of the arms are connected to each other, so that when there is a temperature variation, the distance between the two arms changes, thereby stretching or compressing the optical filter.
Claims8
An apparatus for thermally tuning an optical filter comprising:
- a pair of arms, each arm having a securing end for securing a portion of an optical fibre therebetween and a joining end, said pair of arms being secured together at their respective joining ends;
- an expander connected to each arm for increasing or decreasing a distance between said securing ends.
A method for thermally tuning an optical filter comprising the steps of:
- (a) providing a mechanical amplifier consisting of a pair of arms, each arm having a securing end for securing a portion of an optical fibre therebetween and a joining end, said pair of arms being secured together at their respective joining ends;
- an expander connected to each arm for increasing or decreasing a distance between said securing ends;
- (b) securing an optical fibre including an optical filter to said securing ends of said arms so that said optical filter is located between said securing ends;
- and
- (c) applying a temperature variation to said mechanical amplifier in order to change a distance between said securing ends.
2 more elements
Dependencies are inferred from the claim text.