Fiber-optic equipment is often deployed in various locations, and performance of fiber-optic transmissions may be monitored as a gauge of equipment status to prevent costly and inconvenient communication outages. Events that damage equipment that eventually result in outage and may be desirable to address proactively, but the occurrence of such events may be difficult to detect only through equipment performance Presented herein are techniques for monitoring and maintaining fiber-optic equipment performance via enclosure sensors that measure physical properties within a fiber-optic equipment enclosure, such as temperature, pressure, light, motion, vibration, and moisture, which are often diagnostic and predictive of causes of eventual communication outages, such as temperature-induced cable loss (TICL), incomplete flash-testing during installation, exposure to hazardous environmental conditions, and tampering. An enclosure sensor package transmits the physical measurements to a monitoring station, and automatic determination of enclosure-related events may enable triaging and transmission of repair alerts to maintenance personnel.

Systems and methods are provided for determining a presence, type, or amount of an analyte in fluid. An analyte sensor can include a substrate that includes a chiral molecule for sensing the presence of the analyte in the fluid. A property of the chiral molecule may change in response to sensing the presence of the analyte. The change in the property of the chiral molecule can cause a change in polarization of a beam of light traveling through the substrate. The presence, type, or amount of the analyte can be determined based on the change in polarization of the beam of light. The analyte sensor, along with optical fibers, can be used to determine the presence, type, or amount of an analyte in a fluid sample from a wellbore.

A detection system for measuring one or more conditions within a predetermined area includes at least one fiber optic cable for transmitting light to and receiving scattered light from one or more nodes and a cover plate having an internal cavity. The cover plate surrounds the one or more nodes such that the one or more nodes are in communication with the internal cavity. A control system is operably coupled to the at least one fiber optic cable so that the scattered light received by the one or more nodes is transmitted to the control system. The control system analyzes the scattered light to evaluate a condition at the one or more nodes.

An apparatus for analyzing microbiome according to an embodiment of the inventive concept includes a light source unit configured to excite first light, a sample unit on which a sample to which the first light is incident is disposed, and a data analysis unit configured to receive second light emitted from the sample unit and analyze microbiome in the sample from the second light. Here, the sample unit includes a conductive polymer structure that surrounds the sample.

Fiber-optic equipment is often deployed in various locations, and performance of fiber-optic transmissions may be monitored as a gauge of equipment status to prevent costly and inconvenient communication outages. Events that damage equipment that eventually result in outage and may be desirable to address proactively, but the occurrence of such events may be difficult to detect only through equipment performance. Presented herein are techniques for monitoring and maintaining fiber-optic equipment performance via enclosure sensors that measure physical properties within a fiber-optic equipment enclosure, such as temperature, pressure, light, motion, vibration, and moisture, which are often diagnostic and predictive of causes of eventual communication outages, such as temperature-induced cable loss (TICL), incomplete flash-testing during installation, exposure to hazardous environmental conditions, and tampering. An enclosure sensor package transmits the physical measurements to a monitoring station, and automatic determination of enclosure-related events may enable triaging and transmission of repair alerts to maintenance personnel.

Apparatus for measuring spectra from one or more samples, the apparatus including a reference waveguide that receives illuminating radiation used to illuminate at least one sample, at least one sample waveguide that receives sample radiation at least one of reflected from and transmitted through a respective sample, an optical system that spatially distributes radiation from each of the waveguides based on a frequency of the radiation, and focuses radiation from the optical fibres into an imaging plane and an imaging device that captures an image of the focused and spatially distributed radiation from the imaging plane so that the image includes respective spectra from each of the waveguides.

A method for identification of biochemical markers associated with cervical remodeling over the course of pregnancy of humans includes obtaining Raman signals from the cervix of each of a group of humans with pregnancy at each phase of pregnancy; finding Raman signatures corresponding to each type of cervical tissue from the obtained Raman signals; and identifying biochemical markers associated with cervical remodeling at each phase of pregnancy corresponding to the Raman signatures.

Apparatuses and methods of optically analyzing fluid within a pipette are described herein. In an embodiment, an optical reader subassembly includes a housing including an internal area, a container configured to hold a fluid sample at a sample position in a light tight manner within the internal area of the housing, a light source configured to project light onto the fluid sample within the container, and an optical sensor configured to move between different sensor positions while the fluid sample remains stationary at the sample position, the different sensor positions including at least two of: (i) a first sensor position for taking a luminescence reading of the fluid sample; (ii) a second sensor position for taking a dark current or other background measurement; and (iii) a third sensor position for taking a fluorescence reading of the fluid sample.

An optical detection system for analyzing a fluid sample including a light source configured to emit a light beam to interact with the sample to form a spectrum, an optical fiber to transmit the spectrum, an array of single-photon detectors (SPDs), and wherein each SPD is configured to receive and is tunable to analyze spectral characteristics of the spectrum across a spectral range.

A method for detecting a SARS-Cov-2 protease in a biological sample is provided. The method includes contacting the biological sample with a fluorescent probe based sensor, wherein the sensor comprises an L-Histidine-D-aspartic acid peptide substrate, a fluorophore, and a quencher molecule; and detecting the SARS-Cov-2 protease when an increase in fluorescence is observed.