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首页> 外文期刊>Japanese Journal of Applied Physics. Part 1, Regular Papers & Short Notes >Optical-Pulse-Injection-Induced 40 GHz Photonic Frequency Multiplication in Erbium-Doped Fiber Laser
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Optical-Pulse-Injection-Induced 40 GHz Photonic Frequency Multiplication in Erbium-Doped Fiber Laser

机译：掺b光纤激光器中光脉冲注入诱导的40 GHz光子倍频

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摘要

The generation of a 40 GHz regeneratively amplified and frequency-multiplied optical pulse train from an erbium-doped fiber ring laser is demonstrated. This is achieved by seeding a 1 GHz gain-switched Fabry-Perot laser diode and detuning its repetition frequency to coincide with the harmonic resonant cavity mode. The peak power of frequency-multiplied erbium-doped fiber lasers (EDFL) pulses increases from 80 mW to 230 mW as the modulation level of the Fabry-Perot laser diode (FPLD) increases from 18 dBm to 30 dBm. The pulsewidth and peak power are 10 ps and 5 mW at a repetition rate of 40 GHz. The EDFL longitudinal mode frequency fluctuation is within ±2.5 kHz during 2 h. The frequency-multiplied EDFL pulses exhibit relatively low phase noises of -95dBc/Hz and -120 dBc/Hz at offset frequencies of 10 kHz and 1 MHz, respectively. The associated timing jitter of the EDFL pulses exponentially increases from 0.6 ps to beyond 5.8 ps as the frequency multiplication order increases from 1 to 40.
机译：演示了由掺ped光纤环形激光器产生的40 GHz再生放大和倍频光脉冲序列。这是通过播种1 GHz增益开关Fabry-Perot激光二极管并使其重复频率失谐以与谐振腔谐振模式一致来实现的。随着法布里-珀罗激光二极管（FPLD）的调制电平从18 dBm增加到30 dBm，倍频掺fiber光纤激光器（EDFL）脉冲的峰值功率从80 mW增加到230 mW。在40 GHz的重复频率下，脉冲宽度和峰值功率分别为10 ps和5 mW。 EDFL纵向模式频率波动在2 h内在±2.5 kHz之内。倍频的EDFL脉冲分别在10 kHz和1 MHz的偏移频率下具有-95dBc / Hz和-120 dBc / Hz的较低相位噪声。随着倍频阶数从1增加到40，EDFL脉冲的相关定时抖动从0.6 ps指数增加到5.8 ps以上。

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