Title :
Electronically tunable liquid-crystal-etalon filter for high-density WDM systems
Author :
Maeda, M.W. ; Patel, J.S. ; Lin, Chinlon ; Horrobin, J. ; Spicer, R.
Author_Institution :
Bellcore, Red Bank, NJ, USA
Abstract :
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.<>
Keywords :
frequency division multiplexing; liquid crystal devices; optical filters; 1 to 5 V; 1.5 micron; 622 Mbit/s; 8-channel WDM system; Fabry-Perot etalon filter; bit error rate measurements; crosstalk penalty; drive voltage; electronically tunable liquid crystal etalon filter; high density wavelength division multiplexed system; liquid-crystal electrical tuning element; narrow passband; optical channel spacing; wavelength range; Fabry-Perot; Glass; Laser tuning; Liquid crystals; Optical filters; Optical surface waves; Passband; Tunable circuits and devices; Voltage; Wavelength division multiplexing;
Journal_Title :
Photonics Technology Letters, IEEE
