Low-loss high-speed silicon IQ modulator for QPSK/DQPSK in C and L bands | Zendy

Kazuhiro Goi | Zendy; Akira Oka | Zendy; Hiroyuki Kusaka | Zendy; Yoshihiro Terada | Zendy; Kensuke Ogawa | Zendy; Tsung-Yang Liow | Zendy; Xiaoguang Tu | Zendy; GuoQiang Lo | Zendy; DimLee Kwong | Zendy

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Low-loss high-speed silicon IQ modulator for QPSK/DQPSK in C and L bands

Author(s) -

Kazuhiro Goi,

Akira Oka,

Hiroyuki Kusaka,

Yoshihiro Terada,

Kensuke Ogawa,

Tsung-Yang Liow,

Xiaoguang Tu,

GuoQiang Lo,

DimLee Kwong

Publication year - 2014

Publication title -

optics express

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 1.394

H-Index - 271

ISSN - 1094-4087

DOI - 10.1364/oe.22.010703

Subject(s) - phase shift keying , optics , quadrature amplitude modulation , keying , bit error rate , materials science , phase noise , physics , phase modulation , telecommunications , computer science , channel (broadcasting)

A low-loss high-speed silicon in-phase (I) quadrature (Q) modulator is designed, fabricated and characterized. The fabricated IQ modulator has a low passive optical loss of 9 dB in C and L bands. Using the modulator, differential quadrature phase-shift keying (DQPSK) transmission at 44.6 Gb/s with differential detection is confirmed with an optical signal-to-noise ratio (OSNR) of 16.3 dB for a bit error rate (BER) of 10(-3) and a dispersion tolerance of -96 to 107 ps/nm. Moreover, in digital coherent detection, quadrature phase-shift keying (QPSK) up to 64 Gb/s are achieved with an OSNR of 11.6-11.8 dB for a BER of 10(-2) at 1530, 1550, and 1610 nm.

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