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在1.52μm波长和140Mbit/s数据速率时,零差检测使接收机灵敏度比直接探测改进了10dB。仅仅用-32dBm的本地振荡器功率获得这个结果。
At 1.52μm wavelength and 140Mbit / s data rate, homodyne detection improves the receiver sensitivity by 10dB over direct detection. This result is only obtained with a local oscillator power of -32 dBm.