Electronically tunable liquid-crystal-etalon filter for high-density WDM systems

A 1.5- mu m high-density wavelength-division-multiplexed (HD-WDM) system experiment is demonstrated using a novel Fabry-Perot etalon filter with a liquid-crystal electrical tuning element. The filter has a narrow passband (0.4 nm) and is continuously tunable over a wavelength range of >60 nm with...

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Bibliographic Details
Published in:IEEE photonics technology letters 1990-11, Vol.2 (11), p.820-822
Main Authors: Maeda, M.W., Patel, J.S., Lin, C., Horrobin, J., Spicer, R.
Format: Article
Language:English
Subjects:
Fabry-Perot
Glass
Laser tuning
Liquid crystals
Optical filters
Optical surface waves
Passband
Tunable circuits and devices
Voltage
Wavelength division multiplexing
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Summary:A 1.5- mu m high-density wavelength-division-multiplexed (HD-WDM) system experiment is demonstrated using a novel Fabry-Perot etalon filter with a liquid-crystal electrical tuning element. The filter has a narrow passband (0.4 nm) and is continuously tunable over a wavelength range of >60 nm with a drive voltage from 1 to 5 V. Bit-error-rate measurements with an 8-channel (1539-1556 nm), 622 Mb/s WDM system confirms that the crosstalk penalty is negligible for an optical channel spacing of 2 nm.< >
ISSN:1041-1135
1941-0174
DOI:10.1109/68.63233