JGR Services is a partner and distributor of Yenista Optics.
WS160 Flat-Top Tunable Filter with Adjustable Bandwidth

The WS-160 Tunable Filter offers a flat-top tunable filter characterized by a Gaussian filter shape with adjustable bandwidth. Wavelength tuning ranges over both C and L band whereas the bandwidth can be adjusted from 0.3 nm to 60 nm with respect to the center wavelength. 

The filter features stable FWHM over the entire wavelength range, low PMD, low chromatic dispersion, and high tuning speed. Tuning speed is typically 40 ms from any wavelength to any wavelength and guaranteed below 100 ms over the full tuning range. Input power of 0.5W CW is guaranteed.

Hitless channel selection is available as an option.
Example of Bandwidth Tuning
Bandwidth and Wavelength Tuning
Copyright 2009 JGR Services. All Rights Reserved. Last update: May 2010.