Abstract: A flexible substrate having a plurality of lenses disposed in an array on a surface of the substrate wherein the lenses are formed by etching the substrate.

Abstract: A fiber optic feedthrough includes a housing defining a cylindrical bore, the housing fitting hermetically into an aperture of a wall. A first collimator sealed within the bore receives output from an optical fiber located on a first side of the wall, and a second collimator also sealed within the bore, optically aligned with the first collimator, receives the signal and provides it to a second optical fiber located on a second side of the wall. The polarization extinction ratio of an optical signal traveling through the feedthrough is maintained at a value of at least about 12 dB, and the hermeticity of the feedthrough across the wall is better than about 10?6 atm.cc.sec?1.

Abstract: A fiber optic feedthrough includes a housing defining a cylindrical bore, the housing fitting hermetically into an aperture of a wall. A first collimator sealed within the bore receives output from an optical fiber located on a first side of the wall, and a second collimator also sealed within the bore, optically aligned with the first collimator, receives the signal and provides it to a second optical fiber located on a second side of the wall. The polarization extinction ratio of an optical signal traveling through the feedthrough is maintained at a value of at least about 12 dB, and the hermeticity of the feedthrough across the wall is better than about 10?6 atm.cc.sec?1.

Abstract: A flexible substrate having a plurality of lenses disposed in an array on a surface of the substrate wherein the lenses are formed by etching the substrate.

Abstract: A broadband light source, such as a light-emitting diode (LED), such as a superluminescent light-emitting diode (SLED), has its mean wavelength stabilized by using a filter to pass a characteristic of the output of the source, detecting the filtered output, and adjusting a parameter affecting the wavelength of the source, such as drive current or temperature. A Gaussian or near-Gaussian filter can be used to obtain an intensity detection, or two narrowband filters can be used where one filter passes a wavelength greater, and one passes a wavelength less, than the desired mean wavelength.

Abstract: Method and apparatus for mounting an optical fiber for coupling to a high power light source, the fiber being secured to its mount with a low refractive index adhesive. The low refractive index adhesive serves to reduce the coupling of light traveling within the fiber to the fiber mount, thereby reducing undesirable, potentially destructive heating in the fiber mount. The adhesive preferably comprises sol gel.

Abstract: A flexible image sensor having an array of lenses disposed on one surface of a substrate flexible optical polymeric substrate, and an array of organic integrated circuit photodetectors on a second surface of the substrate, each lens in the lens array being in optical correspondence with a photodetector in the second array. The lens array and the photodetector array are manufactured using similar, low-temperature methods, preferably utilizing the same toolset.

Abstract: An inexpensive TO- or MO-series package is used to house an optical device, such as a laser, by forming an opening in a side of a package, providing an optical fiber within the opening, and coupling the optical device to the fiber. The package is preferably a TO-258 or some other similar metal package.

Abstract: A getter and method for making is provided for removing unwanted impurities from the main body of a sealed hermetic enclosure or package containing one or more devices or objects that have sensitivity to contact with the impurity. The getter may be formulated from granular or powdered materials that react with gas-phase impurities through a combination of chemisorption and absorption mechanisms to form one or more stable species. A porous receptacle is included that contains the getter material such that it cannot penetrate into the main body of the sealed package while allowing the gases in the main body of the package, including the target impurities, to pass freely into the receptacle where they are subsequently rendered immobile by the action of the getter material.

Abstract: A broadband light source, such as a light-emitting diode (LED), such as a superluminescent light-emitting diode (SLED), has its mean wavelength stabilized by using a filter to pass a characteristic of the output of the source, detecting the filtered output, and adjusting a parameter affecting the wavelength of the source, such as drive current or temperature. A Gaussian or near-Gaussian filter can be used to obtain an intensity detection, or two narrowband filters can be used where one filter passes a wavelength greater, and one passes a wavelength less, than the desired mean wavelength.