Parallel O-band amplifier

A system (e.g., an optical amplifier) includes a gain fiber (e.g., a bismuth-doped fiber) for amplifying an optical signal. The optical signal has an operating center wavelength ([lambda] 0) centered between about 1260 nm (-1260 nm) and-1360 nm (in the O band). The gain fibers are optically coupled to the pumping sources, the number of the pumping sources being less than or equal to the number of the gain fibers. The pump source is (optionally) shared between gain fibers, providing more efficient resource usage. 一种系统(例如，光学放大器)，包括用于放大光学信号的增益光纤(例如，掺铋光纤)。光学信号具有在大约1260纳米(～1260nm)和～1360nm之间(在O频带中)居中的的操作中心波长(λ0)。增益光纤光学耦合到泵浦源，泵浦源的数量小于或等于增益光纤的数量。泵浦源(可选地)在增益光纤之间共享，从而提供更高效的资源使用。