GOOCH AND HOUSEGO PLC Patent applications |
Patent application number | Title | Published |
20150049983 | OPTICAL FIBER DEVICE HAVING MODE STRIPPER THERMALLY PROTECTING STRUCTURAL ADHESIVE - An optical fiber device includes a first optical element for transmitting light. An output fiber includes an output fiber core having a light receiving end optically aligned to receive light from the first optical element, and includes at least a first outer cladding on a clad portion. The output fiber includes a mode stripper adhesive with a first adhesive composition and a structural adhesive with a second adhesive composition thereon. The mode stripper adhesive is positioned closer to the first optical element than the structural adhesive to strip a majority of power of cladding guided mode(s) light before reaching the structural adhesive. The mode stripper adhesive has a lower hardness as compared to the structural adhesive, and is substantially indexed matched to an outermost layer of the output fiber that it is in direct contact with. | 02-19-2015 |
20140198388 | FABRY-PEROT DEVICE WITH A MOVABLE MIRROR - A Fabry-Perot tunable filter (FPTF) includes a top mirror having a first surface for receiving light and a second surface opposite the first surface. A movable mirror having a front side is secured to the second surface of the top mirror and includes back side. The movable mirror includes an inner bend resistant portion, wherein the front side includes a flexible front side portion outside the inner bend resistant portion recessed relative to the inner bend resistant portion, and a front side outer bend resistant portion thicker than the flexible front side portion. The back side includes a flexible back side portion outside the inner bend resistant portion and a back side outer bend resistant portion thicker than the flexible back side portion. An actuator mechanically coupled to the back side of the movable mirror moves the inner bend resistant portion relative to the second surface of the top mirror. | 07-17-2014 |
20130155485 | ACOUSTO-OPTIC DEVICE WITH ELECTRODE HAVING DIFFERENT TRANSVERSE EDGE POSITIONS - An acousto-optic (AO) device includes an AO interaction crystal for receiving and propagating a light ray along an optical propagation direction (OPD). A piezoelectric transducer is on at least one surface of the AO interaction crystal for receiving an electrical signal and emitting an acoustic wave into the AO interaction crystal. An electrode is on the piezoelectric transducer for coupling the electrical signal to the piezoelectric transducer. The electrode is a patterned electrode that includes a plurality of different transverse edge positions. The plurality of different transverse edge positions span a position range of at least five percent of an average height (H | 06-20-2013 |
20130112858 | POLARIZATION DIVERSITY DETECTOR - A polarization diversity detector includes at least one optical fiber having a first end for receiving a beam of light and a second end for transmitting the beam of light. A collimator receives the beam of the light from the optical fiber and outputs a collimated beam. A polarization diversity element includes a birefringent material which is positioned for receiving the collimated beam and resolving the collimated beam into a first beam having a first polarization and a second beam having a second polarization different from the first polarization. The first beam and second beam are angled relative to one another. At least one photodetector array pair includes a first photodetector array positioned to receive the first beam and a second photodetector array positioned to receive the second beam. | 05-09-2013 |
20120147450 | OPTICAL ARRANGEMENTS FOR IMAGING INCLUDING AN ACOUSTO-OPTIC TUNABLE FILTER AND AT LEAST ONE PETZVAL LENS COMBINATION - An optical combination includes an input lens having an optical axis for receiving incoming rays, an output Petzval lens combination including spaced apart doublet lenses L | 06-14-2012 |
20110181951 | Composite Reciprocal Rotators and Thermally Compensated Optical Isolators and Circulators Therefrom - A thermally compensated optical device includes in an optical path an input linear polarizer for transmitting linearly polarized light from a received light beam at a design wavelength. A composite reciprocal rotator includes a first reciprocal material and at least a second reciprocal material provides a reciprocal rotation having a temperature coefficient for reciprocal rotation (tempco | 07-28-2011 |
20110084717 | CORRECTED OPTICAL SPECTRAL RESPONSES FOR PHOTOELECTRIC DEVICES - A system for measuring an optical spectral response of a photoelectric device under test (DUT) includes a spectrally programmable light source including in optically coupled sequence a broadband light source for emitting light, a dispersive element for dispersing light, and a spatial light modulator for controlling an intensity and a spectra of the light to provide a spectrally programmable light beam. A light distributing device having at least one input portion is coupled to receive the spectrally programmable light beam and includes a light distributing structure for distributing the spectrally programmable light beam in a known ratio to a first area and at least a second area. A reference detector having a reference output positioned at the first area, and the DUT is positioned at the second area. Data acquisition electronics and a processor can receive simultaneously generated output signals from the DUT and the reference detector to correct for intensity variation in the spectrally programmable light beam in determining the optical spectral response of the DUT. | 04-14-2011 |
20100246907 | AOTF-BASED IMAGING SYSTEM AND METHOD FOR HYPERSPECTRAL AND MULTISPECTRAL IMAGING OF SPECIMENS INCLUDING MEDICAL TISSUE - An imaging system includes a platform for placement of a sample or an animal to be imaged, and at least one excitation light source for irradiating the sample or animal to stimulate an emission at a plurality of different center wavelengths. An acousto-optic tunable filter (AOTF) is provided that includes a piezoelectric transducer crystal for emitting an acoustic wave having a ground electrode disposed on one side of the piezoelectric crystal. A patterned electrode layer is disposed on a side of the piezoelectric crystal opposite the ground electrode. The patterned electrode layer includes a continuous region proximate to its center and a discontinuous region, a pattern in the discontinuous region comprising a plurality of spaced apart features electrically connected to the continuous region, and an AO interaction crystal receiving the acoustic wave attached to the ground electrode or the patterned electrode layer. | 09-30-2010 |
20090122814 | CORROSION RESISTANT COOLED ACOUSTO-OPTIC DEVICES - A corrosion resistant fluid cooled acousto-optic (AO) device includes an AO interaction medium and a piezoelectric transducer affixed to the AO medium. A cooling arrangement is thermally coupled to the AO medium and includes a first material, and at least one cooling conduit in thermal contact within the first material formed from a second different material having an inlet and an outlet coupled thereto. The conduit provides a channel having an inner surface for flowing a coolant fluid therethrough, wherein the conduit includes a continuous corrosion resistant material layer over its entire area of the inner surface. The first material provides a specific acoustic impedance closer to a specific acoustic impedance of the AO medium as compared to the corrosion resistant material, and a bulk thermal conductivity at 25 C of at least 75 W/m·K. | 05-14-2009 |
20090073543 | HIGH FREQUENCY ACOUSTO-OPTIC FREQUENCY SHIFTER HAVING WIDE ACCEPTANCE ANGLE - An acousto-optic (AO) frequency shifter includes an anisotropic crystal having an optical axis and an input face, and an acoustic transducer having electrodes affixed to the face for receiving an electrical signal and projecting an acoustic wave into the crystal. The anisotropic crystal is cut relative to the face so that the transducer is at an acoustic angle (θ | 03-19-2009 |