For "Book Page 2", Triangle, Hermite, Quadratic, Cubic B-Spline, Gaussian and Notch filters
were constantly the best.
Tenders invited for 532 nm notch filters
and band pass filters
The long pass, short pass, and notch filters
typically use 100 more layers to form sharp transitions.
Large part of demonstrations focus on well-known NRZ-OOK to pseudo-return to zero (PRZ) format conversion, which could be performed with i) linear methods: fibre Bragg grating (FBG)-based notch filters
, Fabry-Perot optical band-pass or comb filters  or ii) nonlinear methods: using self-phase modulation in a semiconductor optical amplifier .
Customers can also choose the optical filters such as IR-pass filters, IR band-pass filters, NIR notch filters
The next advance was the introduction of notch filters
, which are designed to reject a pre-selected wavelength band or region while transmitting all other wavelengths within the design range of the filter.
Marques, "Varactor-loaded split ring resonators for tunable notch filters
at microwave frequencies," Electron.
Devices used to provide tunable or reconfigurable properties to filter topologies are PIN diodes , UWB filters integrated with tunable notch filters
using MEMS switches  and Tunable notch characteristics by varactor .
Special techniques such as notch filters
and nulling approaches are needed for measuring tighter specifications.
, on the other hand, have the advantage of suppressing only the tremor frequency and reducing distortion of intentional signals .
On the output there are harmonics which are reduced with notch filters
A computer controlled selection of up to four different gratings and notch filters
enables the system to be operated by non-expert users.