Abstract: A method for growing a straight/non-tapered or a tapered high-transmission single-crystal fiber (SCF) using a fiber growth machine includes receiving, via an electronic control unit (ECU), a set of image data from a camera. The image data includes a first group of pixels of a feed fiber, a seed fiber, and a molten zone formed therebetween using a laser beam. The method includes identifying a feature of interest of the feed fiber, seed fiber, and/or molten zone within the first pixel group and locating position-identifying pixels within the feature of interest as a second pixel group. A horizontal position of the feed fiber is controlled via the ECU using the second pixel group while growing the fiber, including transmitting electronic control signals to actuators of the machine. An automated system for growing the SCF includes the camera configured and the ECU configured to perform the method.

Abstract: The present disclosure generally relates to systems and methods for laser power measurement, and more particularly, systems and methods for laser power measurement in a sterile operating environment. In certain embodiments described herein, power measurement is performed utilizing two laser sources: 1) a first laser source configured to generate a first laser beam (treatment laser); and 2) a second laser source configured to generate a second laser beam (test laser). The first laser beam generates a bubble in a test material (e.g., water, saline, balanced salt solution, gel, etc.) and the second laser beam is reflected back with the reflected portion of the second laser beam being measured to determine a lifetime of the bubble and correlate the lifetime measurement with a power measurement based on a correlation curve.

Abstract: Methods and systems for assessing permeability, porosity, and production fluids pressure or analyzing reservoir fluids in connection with a drilling operation are provided, comprising collecting from a series of depths mud gas samples and reservoir cuttings of a minimum size; allowing the cuttings to evolve a headspace gas within one or more time delays to obtain headspace gas samples; determining within the time delay carbon isotope ratio differences between the mud gas and headspace gas samples; and identifying the depths having isotope ratio differences smaller than those from nearby depths.

Abstract: A frequency modulated spectroscopy system, including a photo-detector, a band-pass filter to filter the output of the photo-detector, and a rectifier to demodulate. The band-pass filter has a relatively high Q factor. With the high Q factor band-pass filter and rectifier, a reference sinusoid is not required for demodulation, resulting in phase-insensitive spectroscopy. Other embodiments are described and claimed.

Abstract: A frequency modulated spectroscopy system, including a photo-detector, a band-pass filter to filter the output of the photo-detector, and a rectifier to demodulate. The band-pass filter has a relatively high Q factor. With the high Q factor band-pass filter and rectifier, a reference sinusoid is not required for demodulation, resulting in phase-insensitive spectroscopy. Other embodiments are described and claimed.