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Ultra-compact and low-loss silica-based dual polarization optical hybrid for digital coherent receiver with excellent common-mode rejection ratio | IEEE Conference Publication | IEEE Xplore

Ultra-compact and low-loss silica-based dual polarization optical hybrid for digital coherent receiver with excellent common-mode rejection ratio


Abstract:

An ultra-compact 3 × 12 mm2 DPOH on a 1.5%-Δ silica-based PLC employing a novel coupler is reported. The excess loss is <;2 dB and the CMRR is <;-27 dBe over the C- and L...Show More

Abstract:

An ultra-compact 3 × 12 mm2 DPOH on a 1.5%-Δ silica-based PLC employing a novel coupler is reported. The excess loss is <;2 dB and the CMRR is <;-27 dBe over the C- and L-bands.
Date of Conference: 17-21 March 2013
Date Added to IEEE Xplore: 17 June 2013
ISBN Information:
Conference Location: Anaheim, CA, USA
Citations are not available for this document.

1. Introduction

The next generation photonic network requires a high-speed optical transport system that combines multi-level modulation formats, coherent detection, and digital signal processing. A dual-polarization quadrature phase shift keying (DP-QPSK) coherent receiver with an excellent common-mode rejection ratio (CMRR) was developed that incorporates a silica-based dual polarization optical hybrid (DPOH), InP/InGaAs photodiodes, and dual-channel InP-based HBT transimpedance amplifiers [1]. As the demand for ultra-small pluggable transceivers increases for short-reach communications, namely, for installation in data centers, it is also becoming important to reduce the size of coherent receivers for long-reach communication. A DPOH based on silica planar lightwave circuit (PLC) technology offers excellent features including low loss, high CMRR, and the integration of polarization beam splitters (PBSs) with a high polarization extinction ratio (PER). However, the chip size was larger than chips made of other waveguide materials, such as InP [2] and silicon [3], because of the lower refractive index difference.

Cites in Papers - |

Cites in Papers - IEEE (4)

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1.
Shintaro Yamasaki, Masanori Takahashi, Junichi Hasegawa, "Compact and Low-Loss PBS-Integrated Coherent Mixer Using ZrO2-SiO2 PLC", 2017 European Conference on Optical Communication (ECOC), pp.1-3, 2017.
2.
Joong-Seon Choe, Byung-Seok Choi, Heasin Ko, Chun Ju Youn, "Silica PLC-Based Polarization Beam Splitter for 780 nm Free-Space Quantum Key Distribution Applications", 2016 Asia Communications and Photonics Conference (ACP), pp.1-3, 2016.
3.
Yasuaki Hashizume, Takashi Goh, Yasuyuki Inoue, Kiichi Hamamoto, Mikitaka Itoh, "Polarization Beam Splitter With Different Core Widths and Its Application to Dual-Polarization Optical Hybrid", Journal of Lightwave Technology, vol.33, no.2, pp.408-414, 2015.
4.
Ruiyong Zhang, Patrick Runge, Gan Zhou, Robert Klötzer, Detlef Pech, Heinz-Gunter Bach, Diego Pérez-Galacho, Alejandro Ortega-Murnox, Robert Halir, Ínigo Molina-Fernández, "56Gbaud DP-QPSK receiver module with a monolithic integrated PBS and 90° hybrid InP chip", 26th International Conference on Indium Phosphide and Related Materials (IPRM), pp.1-2, 2014.

Cites in Papers - Other Publishers (1)

1.
Y. Hashizume, M. Itoh, T. Hashimoto, M. Itoh, "Compact and low-loss silica-based dual polarisation optical hybrid with PBS based on large geometrical birefringence", Electronics Letters, vol.49, no.20, pp.1288-1290, 2013.
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References

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