该电路的模拟部分包括电荷放大器、后级放大电器、相关双取样与采样保持电路、积分器、单位增益缓冲器。
The analog part includes self-test circuit, charge amplifier, post-amplifier circuit, CDS and S/H circuit, integrator, unity gain buffer.
半导体光放大器（SOA）由于体积小、成本低、易与其他光电器件集成，在未来的全光通信系统中将发挥重要的作用。
Semiconductor optical amplifier (SOA) is an important device in future all-optical communications due to its small volume, low cost and easy integration with other optoelectronic devices, etc.
继电器IC 3断开，保护放大器和钳位二极管。
Relay IC3 opens, protecting the amplifier and clamping diodes.
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