Evaluating Optical Narrow Bandpass Filters for Wavelength Division Multiplexing

– High resolution: 0.01 nm (at 1.55 µm) 0.001 nm (at 0.5 µm)

1 GHz (in optical frequency mode)

– High wavelength accuracy: ±0.01 nm

– Measurement speed: 1 to 3.5 seconds

– Coherence analysis range: ±165 mm

ADVANTEST’s own interferometer type

Wavelength resolution of 0.01 nm, wavelength accuracy of ±0.01 nm in the 1550 nm

band (resolution of 1 GHz, accuracy of ±1 GHz in optical frequency mode)

The Q8347 spectrum analyzer enhances the performance of spectrum analyzers using

Fourier Spectrum Systems and Michelson interferometers.

The Q8347 has a wavelength resolution of 0.01 nm in the 1550 nm spectral band

and a wavelength accuracy of ±0.01 nm (1 GHz resolution and ±1 GHz accuracy in optical frequency mode).

In addition, the Q8347 accurately measures each wavelength of an optical

wavelength-division-multiplexing (WDM) transmission signal by separating the spectra.

It is particularly useful for evaluating the characteristics of optical narrow bandpass filters used for WDM, such as AWGs and fiber gratings.

In addition, the Q8347 can be used to analyze chirped signals for LD and Soliton transmission.

500 nm band resolution of 0.001 nm Higher resolution can be achieved at shorter wavelengths.

With a resolution of 0.001 nm in the 500 nm band, the Q8347 is best suited for analyzing blue LDs.