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  • Laser Diode Principles (.pdf)
    A number of questions and misconceptions surround the laser diode. Are all laser diode specifications identical? Do single-mode diodes always operate as single-mode? What effect does temperature change have on wavelength and optical power? The following explores these and other common diode
  • ELDS - Enhanced Laser Diode Spectroscopy
    Laser Diode Spectroscopy (LDS) is a well known method for the sensitive detection and measurement of gases, with techniques including WMS (Wavelength Modulation Spectroscopy), FMS (Frequency Modulation Spectroscopy) and TTFMS (Two Tone Frequency Modulation Spectroscopy) being successfully employed
  • Near Field Imaging of a Laser Diode Using Scanning Method
    This application note describes the result of an experiment performed on near field imaging of a laser diode emission pattern at the output facet. The purpose of the experiment was to provide a proof-of-concept system for the near field measurement of a high-power laser diode bar. The target
  • iC-WK/WKL Laser Diode Driver Application Notes
    iC-WK/L - CW operation up to 90 mA from 2.4 to 6 V supply voltage - Fits all types of laser diode pin configurations - Simple power adjustment via the external resistor - Quick soft start typically within 70 ┬Ás - APC accuracy better than 1%
  • Reliable Cooling of High-Power Laser Diode Arrays (.pdf)
    Northrop Grumman / Cutting Edge Optronics has developed a line of microchannel-cooled laser diode arrays in which the coolant is electrically isolated from the current path. As a result, these arrays do not require the use of deionized water. The thermal performance of these arrays is presented
  • Application of the Integrating Sphere Optical Power Measurement System in Laser Diode Characterization
    Integrating spheres are useful for measurement of divergent light emitted from laser diodes. Typically the laser diode is positioned very close to the internal port of the sphere (Figure 1) and light emitted from the front facet of the device is collected by the internal cavity of the integrating
  • Analog and Digital Modulation of LQx and DLx Series Laser Diode Modules
    The LQx series Fabry-Perot laser diode modules offers the most precise temperature control available from Newport Corporation. The DLx Series Distributed Feedback (DFB) Laser Source modules offer exceptionally stable wavelength and narrow spectral width. The LQC and the DLC series represent laser
  • Single Longitudinal Mode Blue-Violet Laser Diode for Data Storage
    blue-violet laser diode source with a long coherence length and some level of wavelength tuning. Prior approaches, such as external cavities with diffraction gratings [1], have been used to generate single longitudinal mode tunable lasers near 405 nm. Such cavities require a very low reflectivity

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