Signal phase regeneration through multiple wave coherent addition enabled by hybrid optical phase squeezer.

A newly proposed concept, which is called hybrid optical phase squeezer (HOPS), achieves multi-level optical phase quantization through coherent addition of two (dual-wave scheme) or three (triple-wave scheme) optical waves exploiting optical parametric processes and electro-optic modulation. The triple-wave scheme enables signal phase regeneration free from phase-to-amplitude noise transfer, which is inevitable in the dual-wave scheme. By using HOPS in the dual-wave scheme, 3-fold phase-noise reduction was achieved for 24-Gb/s QPSK signals with a slight increase of amplitude noise. On the other hand, HOPS in the triple-wave scheme allowed phase regeneration of 12-Gb/s BPSK signal with a suppression of phase-to-amplitude noise transfer.

[1]  D. Syvridis,et al.  Amplitude Noise Limiting Amplifier for Phase Encoded Signals Using Injection Locking in Semiconductor Lasers , 2012, Journal of Lightwave Technology.

[2]  S. Namiki,et al.  Phase regeneration of QPSK signals by hybrid optical phase squeezer , 2015, 2015 Opto-Electronics and Communications Conference (OECC).

[3]  Joseph Kakande,et al.  Multilevel quantization of optical phase in a novel coherent parametric mixer architecture , 2011 .

[4]  R P Webb,et al.  Phase-sensitive frequency conversion of quadrature modulated signals. , 2013, Optics express.

[5]  Francesca Parmigiani,et al.  Polarization-Assisted Phase-Sensitive Processor , 2015, Journal of Lightwave Technology.

[6]  Takeshi Umeki,et al.  In-line phase-sensitive amplification of QPSK signal using multiple quasi-phase matched LiNbO₃ waveguide. , 2014, Optics express.

[7]  Mingyi Gao,et al.  Phase regeneration of phase encoded signals by hybrid optical phase squeezer. , 2014, Optics express.

[8]  Michael Galili,et al.  Phase regeneration of DPSK signals in a silicon waveguide with reverse-biased p-i-n junction. , 2014, Optics express.

[9]  Peter Horak,et al.  Reducing bit-error rate with optical phase regeneration in multilevel modulation formats. , 2013, Optics letters.

[10]  Takeshi Umeki,et al.  In-line phase sensitive amplifier based on PPLN waveguides. , 2013, Optics express.

[11]  Guifang Li,et al.  Phase and Amplitude Regeneration of Differential Phase-Shift Keyed Signals Using Phase-Sensitive Amplification , 2008, IEEE Journal of Selected Topics in Quantum Electronics.

[12]  Mingyi Gao,et al.  Efficient phase regeneration of DPSK signal by sideband-assisted dual-pump phase-sensitive amplifier , 2013 .

[13]  David J. Richardson,et al.  All-optical phase and amplitude regenerator for next-generation telecommunications systems , 2010 .

[14]  A. Bogris,et al.  FWM-based wavelength conversion of 40 Gbaud PSK signals in a silicon germanium waveguide. , 2013, Optics express.

[15]  Guo-Qiang Lo,et al.  High-efficiency Si optical modulator using Cu travelling-wave electrode. , 2014, Optics express.

[16]  Francesca Parmigiani,et al.  First demonstration of all-optical QPSK signal regeneration in a novel multi-format phase sensitive amplifier , 2010, 36th European Conference and Exhibition on Optical Communication.

[17]  K. R. H. Bottrill,et al.  FWM-based, idler-free phase quantiser with flexible operating power , 2015, 2015 Optical Fiber Communications Conference and Exhibition (OFC).

[18]  Shigeru Kanazawa,et al.  Planar n-SI-n heterostructure athermal InP (110) optical modulator. , 2014, Optics express.

[19]  Stylianos Sygletos,et al.  Generation of frequency symmetric signals from a BPSK input for phase sensitive amplification , 2010, 2010 Conference on Optical Fiber Communication (OFC/NFOEC), collocated National Fiber Optic Engineers Conference.