By allocating channels in the wavelength domain, wavelength division multiplexing (WDM) has demonstrated the most efficient use of the signal bandwidth offered by silica fiber. A key component for the WDM system is a wavelength tunable filter, which is used at the receiver front-end and at the transmitter site for wavelength monitoring. In this paper, we present results of tunable filters designed for wavelength monitoring. The device has demonstrated a record wide tuning range (341 nm) covering both 1.3 /spl mu/m and 1.55 /spl mu/m wavelength regimes. In combination with a custom designed electronic waveform generator and a photoreceiver, this device has also demonstrated its function as a wavelength meter with an accuracy of 0.7 nm. The surface micromachined tunable Fabry-Perot filter was fabricated on a double polished silicon substrate.
Tunable filters with an ultrawide tuning range
01.01.1996
172379 byte
Aufsatz (Konferenz)
Elektronische Ressource
Englisch
Tunable Filters with an Ultrawide Tuning Range
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