Double-mode lasersourcesareattractiveformanyapplications,such asopticalsensing,terahertz(THz)wavegenerationand
imaging, dual-wavelengthinterferometry,opticalswitching,wa-
velength divisionmultiplexing(WDM) [1–5]. Simultaneousdual-
mode emissionfromahigh-powerlasersourcecanbeusefuland
practical toinvestigatethenon-linearopticalprocesses [6]. Fast
(kHz) scanratesandwide fine tuningrangesareneededtoper-
form spectroscopicinvestigationsofturbulentmediaandshort-
living molecules.Furthermore,thelasersemittingwithin1550nm
spectral regionareveryimportantforapplicationsintele-
communication systems [