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Journal of Lightwave Technology

Journal of Lightwave Technology


  • Vol. 29, Iss. 5 — Mar. 1, 2011
  • pp: 721–727

PDM-QPSK Modulator With a Hybrid Configuration of Silica PLCs and LiNbO$_{3}$ Phase Modulators

Hiroshi Yamazaki, Takashi Yamada, Takashi Goh, and Akimasa Kaneko

Journal of Lightwave Technology, Vol. 29, Issue 5, pp. 721-727 (2011)

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We discuss detailed characteristics of a polarization-division-multiplexed quadrature-phase-shift-keying (PDM-QPSK) modulator with a hybrid configuration of silica planar lightwave circuits (PLCs) and LiNbO$_{3}$ (LN) phase modulators. With a polarization multiplexing circuit consisting of a half-wavelength plate (HWP) and a Mach-Zehnder-type polarization beam combiner (PBC) in a PLC, the modulator outputs a PDM-QPSK signal with a inter-polarization-channel crosstalk smaller than ${-}$40 dB. The modulator also has a small insertion loss of 5.0 dB (7.7 and 8.4 dB for each polarization), and successfully operates at 100 Gb/s.

© 2011 IEEE

Hiroshi Yamazaki, Takashi Yamada, Takashi Goh, and Akimasa Kaneko, "PDM-QPSK Modulator With a Hybrid Configuration of Silica PLCs and LiNbO$_{3}$ Phase Modulators," J. Lightwave Technol. 29, 721-727 (2011)

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  1. C. R. S. Fludger, T. Duthel, D. van den Borne, C. Schulien, E.-D. Schmidt, T. Wuth, E. de Man, G. D. Khoe, H. de Waardt, "10$\,\times\,$111 Gbit/s, 50 GHz spaced, POLMUX-RZ-DQPSK transmission over 2375 km employing coherent equalisation," Proc. OFC/NFOEC2007 (2007).
  2. A. Sano, E. Yamada, H. Masuda, E. Yamazaki, T. Kobayashi, E. Yoshida, Y. Miyamoto, R. Kudo, K. Ishihara, Y. Takatori, "No-guard-interval coherent optical OFDM for 100-Gb/s Long-Haul WDM transmission," J. Lightw. Technol. 27, 3705-3713 (2009).
  3. A. Sano, T. Kobayashi, K. Ishihara, H. Masuda, S. Yamamoto, K. Mori, E. Yamazaki, E. Yoshida, Y. Miyamoto, T. Yamada, H. Yamazaki, "240-Gb/s polarization-multiplexed 64-QAM modulation and blind detection using PLC-LN hybrid integrated modulator and digital coherent receiver," Proc. ECOC2009 (2009).
  4. M. Salsi, H. Mardoyan, P. Tran, C. Koebele, E. Dutisseuil, G. Charlet, S. Bigo, "155$\,\times\,$100 Gbit/s coherent PDM-QPSK transmission over 7 200 km," Proc. ECOC2009 (2009).
  5. T. Kobayashi, A. Sano, H. Masuda, K. Ishihara, E. Yoshida, Y. Miyamoto, H. Yamazaki, T. Yamada, "160-Gb/s polarization-multiplexed 16-QAM long-haul transmission over 3 123 km using digital coherent receiver with digital PLL based frequency offset compensator," Proc. OFC/NFOEC2010 (2010).
  6. A. Sano, H. Masuda, T. Kobayashi, M. Fujiwara, K. Horikoshi, E. Yoshida, Y. Miyamoto, M. Matsui, M. Mizoguchi, H. Yamazaki, Y. Sakamaki, H. Ishii, "69.1-Tb/s (432$\,\times\,$171-Gb/s) C- and extended L-band transmission over 240 km using PDM-16-QAM modulation and digital coherent detection," Proc. OFC/NFOEC2010 (2010).
  7. M. Birk, P. Gerard, R. Curto, L. Nelson, X. Zhou, P. Magill, T. J. Schmidt, C. Malouin, B. Zhang, E. Ibragimoc, S. Khatana, M. Glavanovic, R. Lofland, R. Marcoccia, G. Nicholl, M. Nowell, F. Forghieri, "Field trial of a real-time, single wavelength, coherent 100 Gbit/s PM-QPSK channel upgrade of an installed 1800 km link," Proc. OFC/NFOEC2010 (2010).
  8. R. A. Griffin, "Integrated DQPSK transmitters," Proc. OFC/NFOEC2005 (2005).
  9. T. Yamada, Y. Sakamaki, T. Saida, A. Kaneko, A. Sano, Y. Miyamoto, "86-Gbit/s differential quadrature phase-shift-keying modulator using hybrid assembly technique with planar lightwave circuit and LiNbO$_{3}$ devices," Proc. LEOS2006, Paper ThDD4 (2006).
  10. N. Kikuchi, H. Sanjoh, Y. Shibata, K. Tsuzuki, T. Sato, E. Yamada, T. Ishibashi, H. Yasaka, "80-Gbit/s InP DQPSK modulator with an n-p-i-n structure," Proc. ECOC2007 (2007).
  11. M. Sugiyama, M. Doi, T. Hasegawa, T. Shiraishi, K. Tanaka, "Low-drive-voltage and compact RZ-DQPSK LiNbO$_3$ modulator," Proc. ECOC2007 (2007).
  12. T. Sakamoto, A. Chiba, T. Kawanishi, "50-Gb/s 16 QAM by a quad-parallel Mach–Zehnder modulator," Proc. ECOC2007 (2007).
  13. C. R. Doerr, L. Zhang, P. J. Winzer, J. H. Sinsky, A. L. Adamiecki, N. J. Sauer, G. Raybon, "Compact high-speed InP DQPSK modulator," IEEE Photon. Technol. Lett. 19, 1184-1186 (2007).
  14. T. Yamada, "Compact 111-Gbit/s integrated RZ-DQPSK modulator using hybrid assembly technique with silica-based PLCs and LiNbO$_{3}$ devices," Proc. OFC/NFOEC2008 (2008).
  15. S. Corzine, P. Evans, M. Kato, G. He, M. Fisher, M. Raburn, A. Dentai, I. Lyubomirsky, R. Nagarajan, M. Missey, V. Lal, A. Chen, J. Thomson, W. Williams, P. Chavarkar, S. Nguyen, D. Lambert, T. Butrie, M. Reffle, R. Schneider, M. Ziari, C. Joyner, S. Grubb, F. Kish, D. Welch, "10-Channel$\,\times\,$40 Gb/s per channel DQPSK monolithically integrated InP-based transmitter PIC," Proc. OFC/NFOEC2008 (2008).
  16. C. R. Doerr, L. Zhang, "Monolithic 80-Gb/s dual-polarization on-off-keying modulator in InP," Proc. OFC/NFOEC2008 (2008).
  17. C. R. Doerr, P. J. Winzer, L. Zhang, L. L. Buhl, N. J. Sauer, "Monolithic InP 16-QAM modulator," Proc. OFC/NFOEC2008 (2008).
  18. I. Kang, S. Chandrasekhar, L. Buhl, P. G. Bernasconi, X. Liu, C. R. Giles, C. Kazmierski, N. Dupuis, J. Decobert, F. Alexandre, C. Jany, A. Garreau, J. Landreau, M. Rasras, M. Cappuzzo, L. T. Gomez, Y. F. Chen, M. P. Earnshaw, J. Lee, A. Leven, C. Dorrer, "A hybrid electroabsorption modulator device for generation of high spectral-efficiency optical modulation formats," Opt. Exp. 16, 8480-8486 (2008).
  19. H. Yamazaki, T. Yamada, K. Suzuki, T. Goh, A. Kaneko, A. Sano, E. Yamada, Y. Miyamoto, "Integrated 100-Gb/s PDM-QPSK modulator using a hybrid assembly technique with silica-based PLCs and LiNbO$_{3}$ phase modulators," Proc. ECOC2008 (2008).
  20. K. Takiguchi, T. Yamada, M. Abe, S. Kaneko, H. Suzuki, "Integrated frequency-domain optical CDMA modulator using hybrid assembly technique with silica PLCs and LN phase modulators," Proc. ECOC2008 (2008).
  21. T. Shiraishi, M. Doi, T. Hasegawa, K. Tanaka, "Compact LiNbO$_{3}$ optical modulator for polarization-division-multiplexing RZ-DQPSK," Proc. ECOC2009 (2009).
  22. A. Chiba, T. Sakamoto, T. Kawanishi, K. Higuma, M. Sudo, J. Ichikawa, "16-Level quadrature amplitude modulation by monolithic quad-parallel Mach–Zehnder optical modulator," Electron. Lett. 46, 227-228 (2010).
  23. H. Yamazaki, T. Yamada, T. Goh, Y. Sakamaki, A. Kaneko, "64 QAM modulator with a hybrid configuration of silica PLCs and LiNbO$_{3}$ phase modulators," IEEE Photon. Technol. Lett. 22, 344-346 (2010).
  24. J. E. Baran, D. A. Smith, "Adiabatic 2$\,\times\,$2 polarization splitter on LiNbO$_{3}$," IEEE Photon. Technol. Lett. 4, 39-40 (1992).
  25. M. Okuno, A. Sugita, K. Jinguji, M. Kawachi, "Birefringence control of silica waveguides on Si and its application to a polarization-beam splitter/switch," J. Lightw. Technol. 12, 625-633 (1994).
  26. J. J. G. M. van der Tol, J. W. Pedersen, E. G. Metaal, J. J.-W. van Gaalen, Y. S. Oei, F. H. Groen, "A short polarization splitter without metal overlays on InGaAsP-InP," IEEE Photon. Technol. Lett. 9, 209-211 (1997).
  27. Y. Hashizume, R. Kasahara, T. Saida, Y. Inoue, M. Okano, Y. Hashizume, R. Kasahara, T. Saida, Y. Inoue, M. Okano, Electron. Lett. 37, 1517-1518 (2001).
  28. J. Ito, H. Tsuda, "Novel silica-based waveguide-type polarization beam splitters using trenches filled with low-refractive-index material," J. Lightw. Technol. 27, 5668-5674 (2009).
  29. Y. Sakamaki, T. Saida, T. Hashimoto, H. Takahashi, "Low-loss Y-branch waveguides designed by wavefront matching method," J. Lightw. Technol. 27, 1128-1134 (2009).
  30. Y. Inoue, H. Takahashi, S. Ando, T. Sawada, A. Himeno, M. Kawachi, "Elimination of polarization sensitivity in silica-based wavelength division multiplexer using a polyimide half waveplate," J. Lightw. Technol. 15, 1947-1957 (1997).
  31. T. Mizuno, T. Goh, T. Ohyama, Y. Hashizume, A. Kaneko, "Integrated in-band OSNR monitor based on planar lightwave circuit," Proc. ECOC2009 (2009).
  32. P. J. Winzer, R. J. Essiambre, "Advanced modulation formats for high-capacity optical transport networks," J. Lightw. Technol. 24, 4711-4727 (2006).

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