Low-loss tunable integrated acoustooptical wavelength filter in LiNbO/sub 3/ with strong sidelobe suppression
- 1 January 1998
- journal article
- Published by Institute of Electrical and Electronics Engineers (IEEE) in IEEE Photonics Technology Letters
- Vol. 10 (1) , 120-122
- https://doi.org/10.1109/68.651131
Abstract
An integrated acoustooptical double-stage wavelength filter in LiNbO/sub 3/ has been developed using acoustooptical polarization converters and polarization splitters as basic components integrated on the same chip. Ti-indiffusion technology is used throughout to fabricate the device. The packaged and pigtailed filter has low insertion losses (4.1 dB fiber-to-fiber), low-polarization dependence (0.1 dB) and a strong sidelobe and baseline suppression (>30 dB). Its tuning range exceeds the gain bandwidth of erbium-doped fiber amplifiers around 1550 nm.Keywords
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