User Manual Q&AAnswer
Feb 14, 2025 - 12:24 AM
To adjust the wavelength and bandwidth of the OZ Optics DTS0144 Adjustable Polarization Insensitive Variable Bandwidth Tunable Filters, you can use the adjustment knobs on the device. The device contains two independently variable tunable bandpass filters in series. By tuning each filter to cover slightly different wavelength ranges, the overall passband is determined by the overlap of the two individual passbands. The amount of overlap determines the width of the filter.
To adjust the wavelength, you need to change the angle of incidence of the light as it impinges upon the filter. Each filter is independently rotated relative to the incoming light to change the passband. This allows you to control the center frequency of the passband.
To adjust the bandwidth, you can use the adjustment knobs to control the overlap of the two passbands. By adjusting the filters to cover different wavelength ranges, you can control the width of the filter.
It is important to note that the OZ Optics DTS0144 Adjustable Polarization Insensitive Variable Bandwidth Tunable Filters are designed to be polarization insensitive, meaning they have minimal polarization dependent loss (PDL) and the spectral response is virtually polarization independent. This makes them ideal for applications in today's DWDM systems.
For more specific information on how to adjust the wavelength and bandwidth of the filters, please refer to the owner's manual provided by OZ Optics.
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