Patent
Laser-fiber positioner
John C. Goodwin,Tibor F. Devenyi +1 more
TLDR
In this paper, the waveguide end facing the laser is vibrated by mechanical means to modulate the coupled light and the position information contained in the oscillatory component of the signal is decoded and applied to a positioning device which then reduces misalignment between the wave guide and the laser.Abstract:
To position a light output device such as a laser diode relative to a light device such as a waveguide so as to obtain maximum coupling of light, the waveguide end facing the laser is vibrated by mechanical means to modulate the coupled light. Light is detected from a remote end of the fiber and a corresponding electrical signal is generated. Positional information contained in the oscillatory component of the signal is decoded and applied to a positioning device which then reduces misalignment between the waveguide and laser. The positioning device continuously seeks the maximum coupling position. The technique finds particular application in positioning a waveguide in a laser package prior to and during anchoring.read more
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Patent
Microactuator for precisely aligning an optical fiber and an associated fabrication method
TL;DR: In this article, a microactuator for precisely aligning an optical fiber with an optical device includes a carrier having at least one bimorphic actuator which bends or deflects in response to electrical stimuli to thereby controllably position the carrier and, in turn, the optical fiber mounted on the carrier, with a laser diode.
Patent
Integrated microelectromechanical alignment and locking apparatus and method for fiber optic module manufacturing
John M. Haake,Mark W. Beranek +1 more
TL;DR: In this paper, a microprocessor is used to align an optical fiber with an optoelectronic device inside an optical package using an internal automated micro-aligner and internal solder heater.
Patent
Automatic alignment and locking method and apparatus for fiber optic module manufacturing
Eric Y. Chan,Mark Beranek +1 more
TL;DR: In this article, a method and apparatus for aligning an optical fiber (120) with an optoelectronic hybrid device (112) and locking the optical fiber in the aligned position are disclosed.
Patent
Gimballed optical mount
TL;DR: An optical mount for an optical element which has an optical surface was proposed in this article, which includes a first plate and a second plate which holds the optical element, and the second plate may have a spherical bearing surface that cooperates with the first plate so that the optical elements pivots about a point on the optical surface.
Patent
Microactuator for precisely positioning an optical fiber and an associated method
TL;DR: In this paper, the alignment support structure of a microactuator for precisely positioning an optical fiber, such as in alignment with an optical device, includes an alignment support support structure, a carrier movably mounted on the alignment structure and at least one actuator which bends or deflects in response to a predetermined stimuli to thereby controllably position the carrier and, in turn, an optical fibre mounted on a carrier relative to the alignment base structure.
References
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PatentDOI
Method and apparatus using a piezoelectric film for active control of vibrations
TL;DR: In this paper, a method and apparatus for using a piezoelectric film to control or dampen vibrations in a mechanical system is described, where the voltage of proper amplitude and phase is fed across the piezolectric films to induce strain in the film of appropriate phase, amplitude and frequency to dampen beam vibrations of the mechanical system.
Patent
Digital piezoelectric actuator
TL;DR: A linear extension piezoelectric actuator as mentioned in this paper is a displacement generator having a plurality of discrete groups of PPE segments disposed coaxially along the extension axis of the actuator, each group being energized separately by voltage excitation signals from an external source.
Patent
Piezoelectric bi-morph mirror actuator
TL;DR: In this paper, a piezoelectric wavefront modulator is disclosed having mirror actuators including a first and second layer of PEG material, both internally polarized in a given direction, together with electrode means for increasing the internal electric field in one layer while decreasing the internal electrical field in the other layer.
Patent
Electromagnetic positioning device with piezo-electric control
Babitzka Rudolf,Beck Walter +1 more
TL;DR: In this article, a piezo-electric control device is used to restrain movement of the armature of an electromagnet until the current through the exciter winding of the electromagnetic armature has reached almost the maximum value.