Title :
Dynamic response of long optical-cavity laser diode for Ka-band communication satellites
Author :
Daryoush, Afshin S. ; Sato, Kenji ; Horikawa, Kohji ; Ogawa, Hiroyo
Author_Institution :
Wireless Syst. Lab., NTT Opto-Electron. Labs., Kanagawa, Japan
fDate :
8/1/1997 12:00:00 AM
Abstract :
This paper presents the performance of a novel Fabry-Perot (FP) laser diode. The laser is composed of a long gain section, and a multiple-quantum-well (MQW) electroabsorption (E/A) modulator. The laser diode is mode locked using the integrated E/A modulator at 19.3 GHz. Sub-carrier data signals at S-band and a frequency reference of 19.3 GHz are simultaneously distributed using modulation of the gain and E/A sections of the laser, respectively. This paper also compares performance of this laser diode at various operation points in terms of pulsewidth, pulse-to-pulse coherency, phase-noise degradation of the frequency reference, and two-tone spurious-free dynamic range. Implication of this laser´s performance as an optical transmitter is also evaluated for a fiber-optic (FO) distribution network in Ka-band phased-array antennas for satellite communications
Keywords :
antenna phased arrays; electro-optical modulation; laser mode locking; optical fibre networks; optical transmitters; phase noise; satellite communication; semiconductor lasers; 19.3 GHz; Fabry-Perot laser diode; Ka-band communication satellites; S-band; dynamic response; fiber-optic distribution network; frequency reference; gain modulation; long optical-cavity laser diode; multiple-quantum-welI electroabsorption modulator; optical transmitter; phase-noise degradation; phased-array antennas; pulse-to-pulse coherency; pulsewidth; sub-carrier data signals; two-tone spurious-free dynamic range; Diode lasers; Fabry-Perot; Fiber lasers; Frequency; Laser mode locking; Optical modulation; Optical pulses; Optical transmitters; Quantum well devices; Space vector pulse width modulation;
Journal_Title :
Microwave Theory and Techniques, IEEE Transactions on
