Optical Transmission Signal Phase Compensation Method Using an Image Rejection Mixer
نویسندگان
چکیده
منابع مشابه
A 5.25ghz Monolithic Image-rejection Mixer
This paper describes the implementation of the image rejection mixer block in the 5GHz frequency band using 0.18μm CMOS technology. The image rejection mixer block adopts the double-quadrature topology for high image-rejection ratio in the high frequency applications and is designed for the dual-conversion receiver. The loss of the polyphase filter in the signal path can be reduced with simple ...
متن کاملIterative Decoding and Phase-Noise Compensation for Multichannel Optical Transmission
The problem of phase-noise compensation for correlated phase noise in coded multichannel optical transmission is investigated. To that end, a multichannel phase-noise model is introduced and the maximum a posteriori detector for this model is approximated using two frameworks, namely factor graphs (FGs) and the sum–product algorithm (SPA), as well as a variational Bayesian (VB) inference. The r...
متن کاملA hybrid IQ imbalance compensation method for optical OFDM transmission.
Transmitter and receiver IQ imbalance causes image interference that degrades performance in high capacity and high spectral efficiency optical orthogonal frequency division multiplexing (OFDM) schemes. Digital compensation is an attractive method to relax component specifications. In this paper we report the details of a hybrid compensation method for IQ imbalance compensation, comprising of o...
متن کاملDevelopment of a 340-GHz Sub-Harmonic Image Rejection Mixer Using Planar Schottky Diodes
: We report on the design, fabrication and test of an integrated 320-360 GHz Sub-Harmonic Image Rejection Mixer (SHIRM) using planar Schottky diodes. The integrated circuit uses two separate anti-parallel pairs of diodes mounted onto a single quartz-based circuit. Measurement results give SSB receiver noise temperatures of 3300 K at 340 GHz, with an image rejection from 7.6 dB to 23 dB over the...
متن کاملCompensation of nonlinear phase noise impairments through optical phase conjugation in long-haul transmission systems
Differential-quadrature phase-shift-keying (DQPSK) can, unlike on-off-keying (OOK), be impaired by nonlinear phase noise (NPN). It has been shown that optical phase conjugation (OPC) is an effective compensation scheme for NPN resulting from the ASE of EDFAs (ASE-NPN). In this paper we discuss the influence of NPN resulting from modulator imperfections (MI-NPN). We show that MI-NPN can be compe...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
ژورنال
عنوان ژورنال: IEEE Photonics Journal
سال: 2011
ISSN: 1943-0655
DOI: 10.1109/jphot.2011.2105862