Patent application number | Description | Published |
20080239453 | Thermal control of optical filter with local silicon frame - Briefly, in accordance with one or more embodiments, a thermally controlled optical filter comprises a frame coupled to an etalon where the frame includes a resistive thermal device disposed on the frame to obtain thermal measurements of the etalon during operation. The frame may be generally L-shaped or generally square-shaped. The frame may include a fillet that is generally planar, generally beveled or trapezoidal, or generally circular in shape. A heater may be additionally disposed on the frame. The etalon and frame subassembly may be bonded to a micro hot plate that is capable of heating the etalon to an operational temperature. | 10-02-2008 |
20090168816 | STRUCTURED SUBMOUNT FOR TUNER ASSEMBLY WITH OPTIONAL PHASE ADJUST - A structured sub-mount assembly is disclosed to support a hybrid assembly of tunable filters. The sub-mount assembly is constructed to provide a high thermal resistance path and high mechanical resonance frequency. Optionally, the structured sub-mount assembly includes a temperature-controlled phase adjust component disposed approximately midway between the two tunable filters. The structured sub-mount assembly may be part of a tunable laser or other application. | 07-02-2009 |
20100265560 | THERMAL CONTROL OF OPTICAL FILTER WITH LOCAL SILICON FRAME - Briefly, in accordance with one or more embodiments, a thermally controlled optical filter comprises a frame coupled to an etalon where the frame includes a resistive thermal device disposed on the frame to obtain thermal measurements of the etalon during operation. The frame may be generally L-shaped or generally square-shaped. The frame may include a fillet that is generally planar, generally beveled or trapezoidal, or generally circular in shape. A heater may be additionally disposed on the frame. The etalon and frame subassembly may be bonded to a micro hot plate that is capable of heating the etalon to an operational temperature. | 10-21-2010 |
20110033192 | Small Packaged Tunable Optical Transmitter - According to one embodiment, the present application includes a tunable optical transmitter configured in a small package. The tunable optical transmitter includes a housing with a volume formed by exterior walls. An electrical input interface is positioned at the first end of the housing and configured to receive an information-containing electrical signal. An optical output interface is positioned at the second end of the housing and configured to transmit an optical communication beam. A tunable semiconductor laser is positioned in the interior space and operable to emit a laser beam having a selectable wavelength. A semiconductor-based modulator is positioned in the interior space along an optical path of the laser beam and operatively coupled to the optical output interface. The semiconductor-based modulator is configured to impart modulation to the laser beam corresponding to an information-containing electrical signal received through the electrical input interface. | 02-10-2011 |
20110150014 | ANALOG TEMPERATURE CONTROL FOR TUNABLE LASERS - An analog circuit including a voltage divider for providing a first voltage corresponding to an actual temperature of said thermal tuning element of the laser; an analog comparator generating an analog output current for comparing the first voltage with a reference voltage, the reference voltage being representative of a temperature of said thermal tuning element of the laser corresponding to a desired wavelength of the laser; and a heating element thermally coupled to said thermal tuning element, wherein the analog comparator increases said analog current to the heating element, when the first voltage is less than the reference voltage; and decreases said analog current to the heating element, when the first voltage is larger than the second reference voltage. | 06-23-2011 |
20110211599 | THERMAL CONTROL OF OPTICAL FILTER WITH LOCAL SILICON FRAME - Briefly, in accordance with one or more embodiments, a thermally controlled optical filter comprises a frame coupled to an etalon where the frame includes a resistive thermal device disposed on the frame to obtain thermal measurements of the etalon during operation. The frame may be generally L-shaped or generally square-shaped. The frame may include a fillet that is generally planar, generally beveled or trapezoidal, or generally circular in shape. A heater may be additionally disposed on the frame. The etalon and frame subassembly may be bonded to a micro hot plate that is capable of heating the etalon to an operational temperature. | 09-01-2011 |
20120000600 | THERMAL CONTROL OF OPTICAL FILTER WITH LOCAL SILICON FRAME - Briefly, in accordance with one or more embodiments, a thermally controlled optical filter comprises a frame coupled to an etalon where the frame includes a resistive thermal device disposed on the frame to obtain thermal measurements of the etalon during operation. The frame may be generally L-shaped or generally square-shaped. The frame may include a fillet that is generally planar, generally beveled or trapezoidal, or generally circular in shape. A heater may be additionally disposed on the frame. The etalon and frame subassembly may be bonded to a micro hot plate that is capable of heating the etalon to an operational temperature. | 01-05-2012 |
Patent application number | Description | Published |
20120115214 | PORTABLE HIGH GAIN FLUORESCENCE DETECTION SYSTEM - An instrument for fluorometric assays in liquid samples is disclosed. The instrument may include multiple optical channels for monitoring a first fluorophore associated with a target analyte and a second fluorophore associated with a control. The disclosed instrument finds utility in any number of applications, including microfluidic molecular biological assays based on PCR amplification of target nucleic acids and fluorometric assays in general. | 05-10-2012 |
20120135511 | PORTABLE HIGH GAIN FLUORESCENCE DETECTION SYSTEM - Disclosed is a compact, microprocessor-controlled instrument for fluorometric assays in liquid samples, the instrument having a floating stage with docking bay for receiving a microfluidic cartridge and a scanning detector head with on-board embedded microprocessor for controlling source LEDs, emission signal amplification and filtering in an isolated, low noise, high gain environment within the detector head. Multiple optical channels may be incorporated in the scanning head. In a preferred configuration, the assay is validated using dual channel optics for monitoring a first fluorophore associated with a target analyte and a second fluorophore associated with a control. Applications include molecular biological assays based on PCR amplification of target nucleic acids and fluorometric assays in general, many of which require temperature control during detection. Sensitivity and resistance to bubble interference during scanning are shown to be improved by use of a heating block with reflective mirror face in intimate contact with a thermo-optical window enclosing the liquid sample. | 05-31-2012 |
20120156112 | MICROFLUIDIC CLINICAL ANALYZER - A microfluidic cartridge including on-board dry reagents and microfluidic circuitry for determining a clinical analyte or analytes from a few microliters of liquid sample; with docking interface for use in a host workstation, the workstation including a pneumatic fluid controller and spectrophotometer for monitoring analytical reactions in the cartridge. | 06-21-2012 |
20130011912 | PORTABLE HIGH GAIN FLUORESCENCE DETECTION SYSTEM - An instrument for fluorometric assays in liquid samples is disclosed. The instrument may include multiple optical channels for monitoring a first fluorophore associated with a target analyte and a second fluorophore associated with a control. The disclosed instrument finds utility in any number of applications, including microfluidic molecular biological assays based on PCR amplification of target nucleic acids and fluorometric assays in general. | 01-10-2013 |
20140349381 | PORTABLE HIGH GAIN FLUORESCENCE DETECTION SYSTEM - An instrument for fluorometric assays in liquid samples is disclosed. The instrument may include multiple optical channels for monitoring a first fluorophore associated with a target analyte and a second fluorophore associated with a control. The disclosed instrument finds utility in any number of applications, including microfluidic molecular biological assays based on PCR amplification of target nucleic acids and fluorometric assays in general. | 11-27-2014 |
20150346097 | PORTABLE FLUORESCENCE DETECTION SYSTEM AND MICROASSAY CARTRIDGE - Disclosed is a compact, microprocessor-controlled instrument for fluorometric assays in liquid samples, the instrument having a floating stage with docking bay for receiving a microfluidic cartridge and a scanning detector head with on-board embedded microprocessor operated under control of a ODAP daemon resident in the detector head for controlling source LEDs, emission signal amplification and filtering in an isolated, low noise, high-gain environment within the detector head. Multiple optical channels may be incorporated in the scanning head. In a preferred configuration, the assay is validated using dual channel optics for monitoring a first fluorophore associated with a target analyte and a second fluorophore associated with a control. Applications include molecular biological assays based on PCR amplification of target nucleic acids and fluorometric assays in general, many of which require temperature control during detection. | 12-03-2015 |