Fiber optic transducer and method of manufacture therefor

An optical transducer comprising:

• first means for mounting optical transmission lines;
• a first optical transmission line having a first longitudinal axis and a first end face oriented substantially perpendicularly to said first longitudinal axis, said first optical transmission line secured to said first mounting means such that said first end face is fixedly positioned;
• second means for mounting optical transmission lines;
• a second optical transmission line having a second longitudinal axis and a second end face oriented substantially perpendicularly to said second longitudinal axis, said second optical transmission line secured to said second mounting means such that a section thereof extends for a predetermined distance to position said second end face longitudinally a predetermined short distance from said first end face, said second end face being displaceable from an initial position;
• spring means for positioning said second mounting means;
• and
• pressure sensitive means responsive to applied pressure and coupled to flex said spring means such that under a predetermined ambient pressure level said first and second longitudinal axes are transversely offset to establish an ambient optical energy coupling factor between said first and second optical transmission lines in a range between substantially 20% and 90% and such that said second end face is displaced distances corresponding to pressure differentials from said predetermined ambient pressure whereby applied pressures are transformed into displacements of said second end face thus causing a variation in said energy coupling factor between said first and second optical transmission lines that is representative of said applied pressures.