Iridian Articles

  1. Solving PCR Filter Challenges For High-Performance qPCR Instruments

    qPCR instrument users need high sensitivity and pristine signal clarity to achieve numerous delicate tasks. The right combination of optical filters significantly improves this functionality.

  2. Improving DWDM Module Performance With Narrow Dual Band Pass Filters 11/20/2023

    Narrow dual band pass filters, designed and produced mostly for DWDM modules, improve a module’s total insertion loss by reducing the number of components used.

  3. Optical Filter Wavefront Distortion: Out-Of-Band To In-Band Predictions 8/28/2023

    This paper explores predicting accurate in-band wavefront error of an optical filter using out-of-band measurements due to wavelength and angle variations.

  4. Designing Optical Filters For Earth Observation And Satcom 4/4/2023

    Space is the new technological frontier with constellations of satellites designed for earth observation and satellite communications gathering data at unprecedented rates. These next-generation satellites need next-generation technology.

  5. How Custom Raman Edge Pass And Dichroic Filters Optimize Instrument Performance 1/9/2023

    Different Raman devices have different optical filtration needs as well as competing technical demands.

  6. More Signal, Less Background: Improving Signal To Noise Ratio 11/28/2022

    The path to improving signal-to-noise ratio - the ratio of the power of signal (desired input) to the power of background noise (undesired input) - is to reduce the power of the noise – less background.

  7. Using Optical Filters To Measure Earth From A Different Perspective 9/19/2022

    An improved ability to manage or understand the natural or influenced phenomena is critical to ensuring that we maintain a healthy planet capable of sustaining humanity as part of its diverse biomass. But understanding these phenomena and how they are changing over time requires measurement.

  8. How To Enhance Optical Blocking Using Multiple Filters 8/10/2022

    Any background light that reaches the detector of an optical system can greatly compromise signal-to-noise ratio. Using more than one blocking filter is a solution that requires careful consideration.

  9. Filter Specs Vs. Functional Specs – The Pitfall Of Double Margining 6/13/2022

    Wavelength “padding” can result in over- or under-margining of transmission/blocking wavelengths. This leads to a more expensive solution with compromised performance.

  10. How A Filter Is Specified 6/13/2022

    Understanding the filter function and use conditions allows the filter design team to create a filter specification that will ensure the functional requirements are met by a filter that is manufacturable under the commercial constraints (cost, lead-time, volume) of the customer.