Adc Telecommunications, Inc.

Banner Engineering Corporation

Timothy S Gardner

Ronald Evan Gerber

Edward Charles Gage

Thomas J Schmitt

Jeffrey Peter Treptau

Kevin D Batko

Eric Karl Lindmark

Darin Dewayne Wampler

Ilija Milosevic

Jeremy Eickhoff

John C Holman

John Alyn Stecker

Craig A Parsons

John J Taranto

Steven C Dohmeier

Begad Gamal Elmelligy

A sensor device having a sensor housing and a printed circuit board coupled to the sensor housing. A light emitting device is coupled to the printed circuit board. The light emitting device has an emitter face defining an emission face area. An aperture plate is coupled to the sensor housing, the aperture plate defines an aperture having an aperture area that is less than the emission face area of the emitter face. The aperture is less than 1 mm from the emitter face wherein the light emitting device is not fixed to the aperture plate. A lens is coupled to the sensor housing, having an optical axis extending through the aperture. The aperture plate is positioned between the lens and the emitter face. Boresighting angle variation across sensor components on a manufacturing line may advantageously be reduced without increased cost associated with active alignment. Irradiance drop-out may also be reduced.

Photoelectric sensor boresighting improvement

A sensor device has a metal sensor housing with a housing base coupled to a frame base of a metal optical frame. A device mounting plate is orthogonal to the frame base. A securing device secures an optical communication device to the device mounting plate. A barrel mounting channel has first and second sidewalls, each extending obliquely to the frame base and defining a linear translation pathway along the frame base for a metal lens barrel. A fastener secures the metal lens barrel to the first and second sidewalls. A glass lens is in contact with three protrusions extending outward from an inner annular surface of the lens barrel. The optical communication device is configured to be in optical communication with the lens and is secured in a particular position in a translation plane mutually defined by the device mounting plate and the optical communication device.

Triangulation sensor comprising a first optical communication device defines a first translation plane and secured in a particular position along the plane

Triangulation sensor with a first metal lens barrel disposed in a first barrel mounting channel

An improved fiber optic tap monitor has characteristics that are flatter over the wavelength range of interest. The polarization dependence of the characteristics of the tap monitor is reduced, and the package for the tap monitor is smaller. The tap monitor reduces the amount of light reflected back to the source. The tap monitor is also assembled in a manner to improve temperature stability, so that its characteristics over a range of temperatures are more nearly constant.

Fiber optic tap

The invention relates to an approach to angle tuning a thin film, interference filter device in which light is delivered to the filter from a fiber lying off-axis relative to the filter, and to a method of optically coupling such a device. The optical device comprises a lens unit having an optical axis and an adjustable effective focal length. The device also includes a first port disposed on a first side of the lens unit and on a first side of the optical axis, and an optical element disposed on the second side of the lens unit. The optical element has an optical characteristic that is dependent on the angle of incidence on the optical element. The lens unit has an adjustable focal length so light from the first port is incident on the optical element at a desired angle.

Angle tuning wavelength sensitive filters using a variable focal length lens

Two sub-assemblies in a fiber optic device are fitted to mounting faces of a central section. The mounting faces are typically flat and mutually orthogonal, thus permitting the adjustment of the two sub-assemblies in decoupled degrees of freedom. This results in a simpler adjustment procedure for aligning the two sub-assemblies. Furthermore, the mounting of the sub-assemblies using the orthogonal mounting faces permits the use of relatively thin layers of adhesive that reduce misalignment problems arising from mismatched thermal expansion when the temperature changes.

Compact optical module with adjustable joint for decoupled alignment

Generally, the present invention relates to a fiber optic device that is easier to align than conventional devices, and to a method for aligning such devices. An embodiment of the invention includes a first focusing element having an optical axis and a first focal length, and a first optical fiber optically coupled to a first side of the first focusing element. The first optical fiber is disposed at a first transverse distance from the optical axis so that light from the first optical fiber propagates on a second side of the first focusing element as a substantially collimated beam at a first angle to the optical axis. A wedged optical element is optically coupled to the second side of the first focusing element and deviates the substantially collimated beam so as to propagate in a direction substantially parallel to the optical axis.

Dual fiber collimator assembly pointing control

A particular focusing arrangement in a dual fiber collimator improves the transmission efficiency and ease of alignment of the collimator. In particular, the collimator includes two optical fibers mounted in a dual-fiber ferrule. The fiber end-faces are co-planar with the angle-polished end-face of the ferrule and displaced along the optical axis of the ferrule. The collimator unit also includes a first focusing element centered along the optical axis of the ferrule and positioned such that its back front focal point is between the two end faces of the fibers. An advantage provided by this arrangement is that by changing the fiber polish angle and polish azimuth, relative to a line connecting the fiber centers, superior coupling from one fiber to the other can be achieved, even with different working distances and at various wavelengths.

Optical device for compensation of multiple wavelengths and working distances in dual-fiber collimators

Two sub-assemblies in a fiber optic device are fitted to respective end faces of a central section, along a longitudinal axis. The end faces of the central section are non-parallel. Butting the sub-assemblies to respective ends of the central section permits relative adjustment of the two sub-assemblies in substantially decoupled degrees of freedom. This results in a simpler adjustment procedure for aligning the two sub-assemblies. Furthermore, the mounting of the sub-assemblies using angled faces permits the use of relatively thin layers of adhesive that reduce misalignment problems arising from mismatched thermal expansion when the temperature changes.

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Eden Prairie, MN, United States of America

Timothy S Gardner