Title :
Coherent and non-coherent receivers in 60-GHz RoF system based on passively mode-locked laser
Author :
Khayatzadeh, Ramin ; Poette, Julien ; Rzaigui, Habeb ; Cabon, Beatrice
Author_Institution :
L´Inst. de Microlectronique Electromagntisme et Photonique et le Lab. d´Hyperfrquences et de Caractrisation, IMEP-LAHC, Grenoble, France
Abstract :
A 60 GHz radio over fiber (RoF) system based on passively mode-locked laser diode (PMLLD) at the transmitter and envelope detection at the receiver is proposed and experimentally demonstrated. At the central station the millimeter wave is produced using a PMLLD and after being intensity modulated using external modulator propagates through single mode fiber. At the base station optical mode beating and envelope detection has been done in order to extract data. A comparison between the coherent and non-coherent detection is also presented. The theory and experimental results show that the impact of phase and frequency instability of the PMLLD on Error Vector Magnitude (EVM) for the communication system based on non-coherent detection is vanished.
Keywords :
intensity modulation; laser frequency stability; laser mode locking; laser modes; optical modulation; optical receivers; optical transmitters; radio-over-fibre; PMLLD; RoF system; bandwidth 60 GHz; coherent receivers; envelope detection; error vector magnitude; external modulator; frequency instability; intensity modulation; noncoherent receivers; optical mode beating; passively mode-locked laser; phase instability; radio over fiber system; single mode fiber; transmitter; Adaptive optics; Communication systems; Detectors; Optical attenuators; Optical mixing; Optical receivers; Envelope detector; Error Vector Magnitude (EVM); Passively Mode Locked Laser Diode (PMLLD); Radio-over-Fiber (RoF); phase noise;
Conference_Titel :
Microwave Photonics (MWP), 2013 International Topical Meeting on
Conference_Location :
Alexandria, VA
DOI :
10.1109/MWP.2013.6724039
