期刊
IEEE JOURNAL OF SELECTED TOPICS IN QUANTUM ELECTRONICS
卷 19, 期 6, 页码 -出版社
IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC
DOI: 10.1109/JSTQE.2013.2265193
关键词
Photonic crystal waveguides; silicon photonics; optical modulators; slow light
资金
- FIRST Program of Japan Society for the Promotion of Science
- Future Development Project of Ministry of Economy, Trade and Industry, Japan
We report on our recent progress on Si Mach-Zehnder modulators (MZMs) incorporating sub-100 mu m slow-light photonic crystal waveguide (PCW) phase-shifters. In the standard MZM with a PCW in each of the arms, we study the power-dependent bit-error-rate (BER) characteristics at 10 Gb/s, and measure BER = 1 x 10(-9) and 1 x 10(-8) even with phase-shifter lengths of 90 and 50 mu m, respectively. Furthermore, by exploiting the low-dispersion slow-light in the 90 mu m device, we measure a spectral operating bandwidth of 16.9 nm and temperature tolerance between 19-124 degrees C, where the eye pattern amplitude is consistent to within +/- 25%. In the device with a 90 mu m PCW in only one of the MZM arms, designed for large-n(g) operation, we achieve BER= 1 x 10(-9) at 10 Gb/s and also observed barely but open eye patterns at 25 and 40 Gb/s.
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