Q8326 Optical Wavelength Meter
Digital optical wavelength meter of highest precision (NOT distributed in North America & Asia.)
Brief description
Q8326 is a digital optical wavelength meter (Advantest) featuring high resolution of the central wavelength. It is suitable for laser diodes, LEDs and other narrowband light sources. Its high measurement accuracy and resolution are ensured over an extremely long period of time by the built-in HeNe reference laser. The light is coupled in by means of optical fiber. An analog level meter is provided to facilitate alignment of the optical axis, if the light has to be fed into the optical fiber first. Thanks to its high accuracy, Q8326 can be used as a calibration standard for spectroscopes; it allows tuning of dye lasers. It can also be used for investigating the wavelength characteristics of semiconductor components.
The high resolution allows for instance accurate measurement of the temperature and chirp response of laser diodes in case of WDM modulation. The instrument always displays the measured wavelength as a value in a vacuum, thus eliminating measurement errors due to the variable refraction index of the air. With 5 measurements per second, the instrument allows realtime observation of wavelength fluctuations. Intensity-modulated light can be accurately measured with a modulation frequency of 3 MHz or higher.
