Premium
Self‐homodyne detection technique using extracted local oscillator light by GS‐SOA in optical coherent transmission
Author(s) -
Mun KyoungHak,
Jung SangMin,
Han SangKook
Publication year - 2016
Publication title -
microwave and optical technology letters
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.304
H-Index - 76
eISSN - 1098-2760
pISSN - 0895-2477
DOI - 10.1002/mop.29611
Subject(s) - local oscillator , homodyne detection , direct conversion receiver , offset (computer science) , transmitter , signal (programming language) , optics , heterodyne detection , microwave , physics , optical performance monitoring , electronic engineering , optoelectronics , phase noise , wavelength , telecommunications , engineering , computer science , wavelength division multiplexing , laser , channel (broadcasting) , programming language
ABSTRACT A self‐homodyne coherent detection technique using gain‐saturated SOA (GS‐SOA) is proposed. In the proposed system, local oscillator (LO) for optical coherent detection is extracted from the optical signal which is sent from the transmitter using the fact that the modulated downlink data can be erased with SOA operation in saturation region. Therefore, carrier frequency offset noise does not occur because LO light which is extracted from the received optical signal has totally same wavelength with the optical signal. In order to operate SOA operates in deep saturation region, high optical input power is needed. The proposed scheme was experimentally demonstrated, and the feasibility was discussed with the experimental results. © 2015 Wiley Periodicals, Inc. Microwave Opt Technol Lett 58:561–565, 2016