Optical waveguides – With disengagable mechanical connector – Structure surrounding optical fiber-to-fiber connection
Patent
1992-08-12
1994-02-22
Gonzalez, Frank
Optical waveguides
With disengagable mechanical connector
Structure surrounding optical fiber-to-fiber connection
385 72, 356352, G02B 638
Patent
active
052895521
ABSTRACT:
The present invention provides fiber Fabry-Perot filters having an adjustable temperature coefficient. Passive means and adjustable means for changing the temperature coefficients of FFPs are provided. These means allow adjustment of the temperature coefficient of the filter to minimize wavelength (or frequency) drift as a function of temperature. The means for temperature coefficient adjustment described herein are particularly useful in combination with electronic means for changing the cavity length, such as piezoelectric transducer elements. Controlling the thicknesses of epoxy used to attach PZTs in the filter fixture has been found to lead to improved reproducibility of passive temperature compensation. An adjustable means for changing the temperature coefficient of a FFP after its construction by varying the points of contact between the filter ferrules and the filter fixture is also provided. Combination of the means of temperature coefficient adjustment described herein result in significantly improved yields of FFPs having temperature drift less than about 0.1 FSR/15.degree. C.
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Miller Calvin M.
Miller Jeffrey W.
Gonzalez Frank
Micron Optics Inc.
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