在系统中引入自振荡激光的掺铒光纤放大器(EDFA)光增益控制 (OGC)是在信道负载变化时在波长增 /减复用系统的残存信道中保持光增益的一种方法。但掺铒光纤放大器会在光增益控制激光波长中出现光谱烧孔 ,导致残存信道产生增益误差。美国康宁公司在光增益控制激光腔中引入可饱和 Erbium-Doped Fiber Amplifier (EDFA) Optical Gain Control (OGC), which introduces a self-oscillating laser into the system, is a method of maintaining optical gain in the surviving channel of a wavelength increase / decrease multiplex system when the channel load changes. Erbium-doped fiber amplifiers, however, exhibit spectral hole burning in the optical gain-controlled laser wavelength, resulting in gain errors in the remaining channels. Corning Incorporated in the United States to introduce optical gain control laser cavity can be saturated