2014•Unpublished venueRequires access

Flexible high-order QAM transmitters for elastic optical networks

Guo-Wei Lu, Takahide Sakamoto, Tetsuya Kawanishi

Abstract

In order to adapt to the dynamics in the future optical networks, we propose and experimentally two flexible high-order quadrature amplitude modulation (QAM) transmitter schemes: i) a flexible transmitter using a tandem in-phase/quadrature (IQ) modulators for generating 16-/32-/64-QAM signals; and ii) a scheme based on monolithically-integrated quad Mach-Zehnder in-phase/quadrature (QMZ-IQ) with binary driving electronics for synthesizing minimum phase-shift keying (MSK), quadrature phase-shift keying (QPSK), 8-ary phase shift keying (8PSK), and 16QAM. The flexibility and re-configurability of the proposed schemes are experimentally verified.

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Key concepts: Quadrature amplitude modulation, Phase-shift keying, Amplitude and phase-shift keying, QAM, Electronic engineering, Transmitter, Keying, Minimum-shift keying