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Optics Express

Optics Express

  • Editor: C. Martijn de Sterke
  • Vol. 19, Iss. 26 — Dec. 12, 2011
  • pp: B69–B74

Dual-carrier IQ modulator with a complementary frequency shifter

Hiroshi Yamazaki, Takashi Saida, Takashi Goh, Atsushi Mori, and Shinji Mino  »View Author Affiliations

Optics Express, Vol. 19, Issue 26, pp. B69-B74 (2011)

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We devised a dual-carrier IQ modulator consisting of a novel complementary frequency shifter (CFS) and two IQ modulators. The CFS generates two optical subcarriers from a single light source and outputs them from separate ports without using any optical demultiplexing filters. We fabricated the modulator in a hybrid configuration of silica planar lightwave circuits and a LiNbO3 phase-modulator array. Frequency-spacing-tunable operation of the CFS was demonstrated. With the modulator, we successfully generated a 100-Gb/s/pol dual-carrier OFDM-QPSK signal.

© 2011 OSA

OCIS Codes
(230.2090) Optical devices : Electro-optical devices
(250.7360) Optoelectronics : Waveguide modulators

ToC Category:
Waveguide and Opto-Electronic Devices

Original Manuscript: September 26, 2011
Manuscript Accepted: October 9, 2011
Published: November 16, 2011

Virtual Issues
European Conference on Optical Communication 2011 (2011) Optics Express

Hiroshi Yamazaki, Takashi Saida, Takashi Goh, Atsushi Mori, and Shinji Mino, "Dual-carrier IQ modulator with a complementary frequency shifter," Opt. Express 19, B69-B74 (2011)

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  1. H. Masuda, E. Yamazaki, A. Sano, T. Yoshimatsu, T. Kobayashi, E. Yoshida, Y. Miyamoto, S. Matsuoka, Y. Takatori, M. Mizoguchi, K. Okada, K. Hagimoto, T. Yamada, and S. Kamei, “13.5-Tb/s (135 × 111-Gb/s/ch) No-Guard-Interval Coherent OFDM Transmission over 6,248 km using SNR Maximized Second-order DRA in Extended L-band,” in Proc. OFC/NFOEC2009, PDPB5 (2009).
  2. S. Chandrasekhar, X. Liu, B. Zhu, and D. W. Peckham, “Transmission of a 1.2-Tb/s 24-carrier No-guard-interval Coherent OFDM Superchannel over 7200-km of Ultra-large-area Fiber,” in Proc. ECOC2009, PD 2.6 (2009).
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  8. T. Kawanishi, T. Sakamoto, S. Shinada, and M. Izutsu, “Optical frequency comb generator using optical fiber loops with single-sideband modulation,” IEICE Electron. Express 1(8), 217–221 (2004). [CrossRef]
  9. N. Dupuis, C. R. Doerr, L. Zhang, L. Chen, N. J. Sauer, L. L. Buhl, and D. Ahn, “InP-based comb generator for optical OFDM,” in Proc. OFC/NFOEC2011, PDPC8 (2011)
  10. H. Yamazaki, T. Yamada, T. Goh, and S. Mino, “Multilevel Optical Modulator with PLC and LiNbO3 Hybrid Integrated Circuit, ” in Proc. OFC/NFOEC2011, OWV1 (2011)
  11. H. Yamazaki, T. Saida, T. Goh, A. Mori, and S. Mino, “Dual-carrier IQ Modulator Using a Complementary Frequency Shifter,” in Proc. ECOC2011, Mo.1.LeSalve.5 (2011)
  12. H. Yamazaki, T. Goh, A. Mori, and S. Mino, “Modulation-level-selectable Optical Modulator with a Hybrid Configuration of Silica PLCs and LiNbO3 Phase Modulators,” in Proc. ECOC2010, We.8 E (2010).
  13. M. Izutsu, S. Shikama, and T. Sueta, “Integrated Optical SSB Modulator/Frequency Shifter,” IEE J. Quantum Electron. 17(11), 2225–2227 (1981). [CrossRef]

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