得益于 PCVD 工艺对预制棒剖面精确控制的特点，长飞公司能够精确制造出复杂折射率剖面形状的光纤，从而能够得到在被补偿工作波长处插入损耗与残余色散最优化的光纤产品，并且可以按需求提供对中心波长和色散有特殊要求的光纤。

2023年3月11日 · 自由现金流折现法（dcf）也被认为是最有效的，估值方法之一。自由现金流折现法体现了成长是企业价值的一部分，而且是很重要的一部分；企业经营能否持久是比成长更重要的事；企业经营中面临的风险因素，也是决定企业价值非常关键的部分。

保偏色散补偿光纤（PM-DCF）不仅可以补偿标准PM光纤（例如TruePhase®1550）的色散，还可以补偿色散斜率。 PM-DCF是一种应力杆支撑的DCF，利用了多年来在标准电信DCF设计方面的进步。

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估值模型是金融界广泛使用的一种公司价值评估方法，常用的估值模型有dcf、p/e和ev/ebitda等。 其中，理论上最准确的估值方式就是现金流贴现模型(Discounted Cash Flow,DCF模型)，是把企业在…

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