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Optics Express

Optics Express

  • Editor: C. Martijn de Sterke
  • Vol. 20, Iss. 24 — Nov. 19, 2012
  • pp: 27174–27179

Silica-based, compact and variable-optical-attenuator integrated coherent receiver with stable optoelectronic coupling system

Satoshi Tsunashima, Fumito Nakajima, Yusuke Nasu, Ryoichi Kasahara, Yasuhiko Nakanishi, Takashi Saida, Takashi Yamada, Kimikazu Sano, Toshikazu Hashimoto, Hiroyuki Fukuyama, Hideaki Nosaka, and Koichi Murata  »View Author Affiliations


Optics Express, Vol. 20, Issue 24, pp. 27174-27179 (2012)
http://dx.doi.org/10.1364/OE.20.027174


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Abstract

We demonstrate a compact and variable-optical-attenuator (VOA) integrated coherent receiver with a silica-based planar lightwave circuit (PLC). To realize the compact receiver, we integrate a VOA in a single PLC chip with polarization beam splitters and optical 90-degree hybrids, and employ a stable optoelectronic coupling system consisting of micro lens arrays and photodiode (PD) subcarriers with high-speed right-angled signal lines. We integrate a VOA and a coherent receiver in a 27x40x6 mm package, and successfully demodulate a 128-Gbit/s polarization division multiplexed (PDM) quadrature phase shift keying (QPSK) signal with a VOA-assisted wide dynamic range of more than 30 dB.

© 2012 OSA

OCIS Codes
(060.1660) Fiber optics and optical communications : Coherent communications
(250.3140) Optoelectronics : Integrated optoelectronic circuits

ToC Category:
Optoelectronics

History
Original Manuscript: September 14, 2012
Revised Manuscript: October 30, 2012
Manuscript Accepted: November 1, 2012
Published: November 16, 2012

Citation
Satoshi Tsunashima, Fumito Nakajima, Yusuke Nasu, Ryoichi Kasahara, Yasuhiko Nakanishi, Takashi Saida, Takashi Yamada, Kimikazu Sano, Toshikazu Hashimoto, Hiroyuki Fukuyama, Hideaki Nosaka, and Koichi Murata, "Silica-based, compact and variable-optical-attenuator integrated coherent receiver with stable optoelectronic coupling system," Opt. Express 20, 27174-27179 (2012)
http://www.opticsinfobase.org/oe/abstract.cfm?URI=oe-20-24-27174


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