White Papers and Case Studies

51. Specifying Plasma Deposited Hard-Coated Optical Thin Film Filters 6/18/2020

    Learn about different filter types, their key attributes, and how to optimize cost. The filters discussed include high cavity count band pass, replacement, tilted beamsplitter filters, and more.

52. Are You Safe At A Laser Light Show? 5/12/2020

    The assessment of laser beam exposure used for entertainment applications is a challenging undertaking. Both the emission and the environment pose particular obstacles to persons with the responsibility of ensuring emissions are below the permissible exposure limits. This article discusses how use of Ophir’s BC20 detector is able to offer significant improvements in measurements quality over traditional laser power detectors intended for CW beams.

53. Quality Assurance In Additive Production 3/17/2020

    Whether in research or in production, the laser parameters must be checked regularly. For this purpose, Fraunhofer Research Institution for Additive Manufacturing Technologies IAPT generally turns to the Ophir BeamWatch AM, which measures the laser beam without contact, is compact enough to be used inside the production chamber, and delivers measurement results quickly. This case study covers the full story.

54. Measuring Average Power Of Pulsed Lasers With Photodiodes 3/17/2020

    Recent development in VCSELs for applications in remote sensing, require measurement of average power during pulsed operation. When measuring average power of pulsed lasers, another mechanism may also affect the linearity of the photodiode. In this article we review this mechanism.

55. ISO Compliance Of Non-Contact, Real-Time Beam Analysis 8/1/2019

    To deliver continuously high product quality, the key parameters of laser beams in production applications must be measured on a regular basis. Ophir has tackled the task and developed a non-contact measurement technology, the BeamWatch, based on the Rayleigh scattering. 

56. Understanding VCSEL Measurement Solutions 4/2/2019

    Vertical Cavity Surface Emitting Lasers (VCSELs) are a type of semiconductor laser diode. This article discusses VCSEL measurement solutions and how Ophir equipment can be used to get reliable power and beam profile data on VCSELs.

57. Analyzing Small, High Power Beams At Focus In Manufacturing Applications 2/14/2019

    Lasers are increasingly deployed in manufacturing applications, being pushed to higher output powers and smaller beam sizes to work faster and with higher precision. Determining the beam profile at the beam focus of these lasers is critical to verify and improve manufacturing product quality. 

58. The Race To The Starting Line: Edge-Emitting Diode Lasers vs. VCSELs For The Automotive Lidar Market 3/13/2018

    The competition to be the leading diode laser source for automotive lidar is not a race to the top, but rather a race to the starting line. Before reaching the goal to implement lidar ADAS in consumer vehicles by 2020, there must be at least one year of certification and testing before going to market. 

59. Achieving Standardized Measurements With BeamWatch AM 12/1/2017

    The BeamWatch AM is Ophir-Spiricon’s beam monitoring system designed specifically for use in the additive manufacturing industry to provide non-interfering real-time beam measurement at the location of the working plane. 

60. Creating A Passive Laser Beam Analyzer Through A Haas Laser Technologies And Xenics Partnership 10/13/2017

    High power CO2 lasers produce a beam of infrared light with wavelengths centering typically at 9.3 or 10.6 μm. Haas Laser Technologies, Inc. has developed a compact, all passive optical design laser beam analyzer for focused laser beams from a CO2 laser with wavelength range from 9.3 to 10.6 μm. In conjunction with a Fabry-Perot resonator and Xenics’ Gobi-640-GigE microbolometer camera, the new beam analyzer offers laser beam measurement and analysis for continuous-wave (CW) as well as pulsed lasers.