What is a tunable bandpass filter?
Tunable RF Filters are bandpass filters whose passband frequency can be fine tuned.
How does a tunable filter work?
Tunable Resonators An optical resonator, ideally operated with a mode-matched input, transmits light only for certain resonance frequencies. Those can be tuned e.g. by modifying the resonator length with a piezo transducer. Such filters can also be realized as fiber Fabry–Perot resonators.
What is a tunable optical filter?
Tunable Optical Filters A Tunable optical filter is ideal for any application requiring wavelength tuning. DiCon Fiberoptics, a recognized leader in designing and manufacturing optical components offers a range of tunable optical filters to suit any application.
What is an acousto optic tunable filter?
The acousto-optic tunable filter (AOTF) is an electro-optical device that functions as an electronically tunable excitation filter to simultaneously modulate the intensity and wavelength of multiple laser lines from one or more sources.
How does an optical filter work?
Optical filters selectively transmit light in a particular range of wavelengths, that is, colours, while absorbing the remainder. They can usually pass long wavelengths only (longpass), short wavelengths only (shortpass), or a band of wavelengths, blocking both longer and shorter wavelengths (bandpass).
What are optical filters used for?
An optical filter is used to “attenuate or enhance an image.” An optical filter can also reflect unique wavelengths, split images into two identical images or transmit an image.
What are the specifications of a tunable bandpass filter?
Specifications 1 Type Tunable Bandpass Filter 2 Fiber Type Singlemode 3 Operating Wavelength 1535 to 1565 nm 4 Maximum Insertion Loss 3.0 dB 5 Typical Insertion Loss 1.5 dB 6 Bandwidth 0.8nm (TYP), 3.5nm (MAX)
What are band pass filters and band reject filters?
Pasternack Enterprises’ new tunable band pass filters and band reject filters (also referred to as band-stop filters or band-rejection filters) are bench top units designed for lab use where they are an integral part of the test lab environment.
What is a tunable filter?
The tunable filters are effective in band selection or frequency discrimination with high attenuation greater than 50 dB possible, allowing for excellent noise, harmonic and adjacent-band reduction. These highly durable units employ ruggedized aluminum construction with critical surfaces being silver plated.