The methods of coherent and incoherent fiber laser beam combination are briefly introduced.The fiber numbers of both methods are theoretically analyzed.The results prove that several hundred fiber laser beams combination could be realized through incoherent beam combination methods,and the output power would reach the level of 10 kilowatt in contrast to 10 fiber laser through coherent combination method.Obviously,the incoherent fiber laser beam combination method is the ideal choice to realize airborne soft...