Derivation of the center-wavelength shift of narrow-bandpass filters under temperature change
نویسندگان
چکیده
منابع مشابه
Fabrication of narrow bandpass filters for wavelength division multiplexing applications – A feasibility study
Thin film multilayer narrow bandpass interference filters are widely used in wavelength division multiplexing (WDM) applications in fibre optic communication systems. These filters must have sharp cut-on and cut-off on either side of the passband and practically zero transmittance outside the passband, over the wavelength range of the application. In an effort to demonstrate the feasibility of ...
متن کاملSimulation of errors in the monitoring of narrow bandpass filters.
Narrow bandpass filters are extremely sensitive to errors in the optical thickness of the layers, but they have an extraordinary inherent capability to compensate for these errors. Graphical examples of errors of differing magnitudes and types with and without compensation are shown with computer simulation of the optical monitoring techniques. This allows the estimation of what magnitude of er...
متن کاملSpectral design of temperature-invariant narrow bandpass filters for the mid-infrared.
The ability of narrow bandpass filters to discriminate wavelengths between closely-separated gas absorption lines is crucial in many areas of infrared spectroscopy. As improvements to the sensitivity of infrared detectors enables operation in uncontrolled high-temperature environments, this imposes demands on the explicit bandpass design to provide temperature-invariant behavior. The unique neg...
متن کاملMonitoring the last two (AR) layers in narrow bandpass filters
The final corrections which might be made in the last two antireflection (AR) layers in the deposition of narrow bandpass filter designs such as might be used for Dense Wavelength Division Multiplexing (DWDM) in the fiber optics communications field were discussed in a previous report. A broader range of techniques and simulations of those final layer adjustments are described here, how they ca...
متن کاملUltra-narrow bandpass filters based on volume Bragg grating technologies
Free space optical communication between movable platforms, especially communication with non-cooperative targets, requires detecting low intensity signals in conditions of multiple sources of contaminating signals. In this paper, we review recent achievements in ultra-narrow bandpass filters based on volume Bragg gratings (VBGs) recorded in the bulk of photo-thermo-refractive glass. The new ty...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
ژورنال
عنوان ژورنال: Optics Express
سال: 2004
ISSN: 1094-4087
DOI: 10.1364/opex.12.005634