Abstract:
An apparatus for switching optical signals. An optical bench includes a plurality of through-openings for receiving a plurality of collimators and a plurality of actuators. The actuators include a mirror for redirecting an optical signal from one collimator to another. The collimators and actuators are secured to the optical 5 bench by an adhesive system that includes opposing longitudinal slots containing adhesive securing the collimators and actuators to the optical bench.
Abstract:
A network healing smart fiber optic switch for fast, automatic switching between multiple paths of an optical transmission line with minimal disruption. The network healing smart fiber optic switch feeds multiple fiber optic inputs to a splitter (402). One of the outputs of the splitter goes to an optical switch (406), which selects the signal to send to the output based on a control signal from an analog selection circuit. Other outputs of the splitter go to the analog selection circuit (412, 414, 422, 424, 426), which outputs a control signal to the optical switch. The analog selection circuit compares the primary optical signal to a selected setpoint (416) to determine the signal's validity. The analog selection circuit routes a secondary, optical signal upon failure of the primary optical signal. After the primary signal is restored and valid for a specified period, the analog selection circuit deselects the secondary optical signal and routes the primary optical signal.
Abstract:
A new architecture for implementing a time-resolved Raman spectrometer is 2-3 orders of magnitude faster than current systems. The system additionally is compact, environmentally rugged, low cost and can detect multiple components of a sample simultaneously. In one embodiment, the invention employs a rotating optical switch to time multiplex an input signal through multiple bandpass filters and into a single optical detector which is electrically activated only when the filtered input light pulse is about to impact it. The combination of time-multiplexing the input signal through multiple optical filters and time-sequencing the optical detector enables the device to detect and analyze 2-3 orders of magnitude faster than current designs, processing spectra within milliseconds instead of seconds. The system can process multiple material samples (25+) simultaneously, instead of sequentially, and its mechanical ruggedness and simplicity enables using the system in harsh physical environments when traditional spectrometers can not be used reliably.
Abstract:
A new architecture for implementing a time-resolved Raman spectrometer is 2-3 orders of magnitude faster than current systems. The system additionally is compact, environmentally rugged, low cost and can detect multiple components of a sample simultaneously. In one embodiment, the invention employs a rotating optical switch to time multiplex an input signal through multiple bandpass filters and into a single optical detector which is electrically activated only when the filtered input light pulse is about to impact it. The combination of time-multiplexing the input signal through multiple optical filters and time-sequencing the optical detector enables the device to detect and analyze 2-3 orders of magnitude faster than current designs, processing spectra within milliseconds instead of seconds. The system can process multiple material samples (25+) simultaneously, instead of sequentially, and its mechanical ruggedness and simplicity enables using the system in harsh physical environments when traditional spectrometers can not be used reliably.
Abstract:
An optical switch actuator (10) moving an optical element (132) into or out of an optical pathway. The optical element (132) is coupled to a movable shuttle (112) and driven by a motor between two rest positions. The motor includes two stationary coils (214, 224) and a magnet (318). The shuttle (112) is magnetically latched in the rest positions. The optical element's position at the extended rest position is controlled with a stop that contacts the shuttle (112) to provide accuracy and precision about multiple axes. The material used to construct the actuator's components aids in repeatedly positioning the optical element (132) with precision.
Abstract:
An apparatus (10) for switching a single optical signal to any one of several outputs. An input collimator (202) transmits an optical signal (402) that is reflected from two mirrors (112, 114) on an optical bench (102) into an output collimator (212). Between the two mirrors (112, 114) is an actuator (232) that interrupts the optical signal (404) and reflects another signal (602) from an end collimator (312) into one mirror (116) and the output collimator (212). The alignment of the collimators (202, 212) and actuators (232) relative to the optical bench (102) is achieved by actively aligning the elements, which includes monitoring an optical signal passing through the collimator and using the signal as feedback for positioning control.
Abstract:
An apparatus (10) for switching a single optical signal to any one of several outputs. An input collimator (202) transmits an optical signal (402) that is reflected from two mirrors (112, 114) on an optical bench (102) into an output collimator (212). Between the two mirrors (112, 114) is an actuator (232) that interrupts the optical signal (404) and reflects another signal (602) from an end collimator (312) into one mirror (116) and the output collimator (212). The alignment of the collimators (202, 212) and actuators (232) relative to the optical bench (102) is achieved by actively aligning the elements, which includes monitoring an optical signal passing through the collimator and using the signal as feedback for positioning control.
Abstract:
An optical system employs filtered broad band light for determining the specific components in a material sample. The system forms an r by n matrix C representing r principal components of the measurement to be analyzed at n different frequencies. Each sample contains a known quantity of the different materials in the sample being analyzed where r represents the number of different analytes or components in the sample. The system measures m different samples at n different frequencies, said m samples containing unknown quantities of the material, where "m" is a selected integer representing the number of samples. Using the measured results from the m samples the system forms an n by m matrix P, where P = C.R, and where R is an m by r matrix representing r unknown values of the r principal components which are being measured in the m material samples. The system then solves the equation P = C.R for R by inverting C in the equation. This gives the value of each of the r principal components in the sample.
Abstract:
A time-resolved, fluorescence spectrometer makes use of a RadiaLight® optical switch and no dispersive optical elements (DOE) like gratings. The structure is unique in its compactness and simplicity of operation. In one embodiment, the spectrometer makes use of only one photo-detector and an efficient linear regression algorithm. The structure offers a time resolution, for multiple species measurements, of less than 1 s. The structure can also be used to perform fluorescence correlation spectroscopy and fluorescence cross-correlation spectroscopy.
Abstract:
An apparatus for switching optical signals. An optical bench includes a plurality of through-openings for receiving a plurality of collimators and a plurality of actuators. The actuators include a mirror for redirecting an optical signal from one collimator to another. The collimators and actuators are secured to the optical 5 bench by an adhesive system that includes opposing longitudinal slots containing adhesive securing the collimators and actuators to the optical bench.