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设计了一种宽带可调谐多波长布里渊/铒光纤光源。利用光纤中的受激布里渊散射效应产生反方向传输的斯托克斯信号将光信号返回线型腔中,消除了腔内自激模的影响,使光源的调谐带宽仅由掺铒光纤放大器的带宽和布里渊抽运信号的调谐范围决定。布里渊抽运信号进入布里渊增益介质之前经过掺铒光纤放大器的两次放大,有效降低了布里渊增益的抽运阈值。该光源实现了1530～1570 nm之间40 nm可调谐范围的输出。在布里渊抽运信号功率2 mW,1480 nm抽运源抽运功率110 mW情况下,在1540～1566 nm范围内,获得了波长间隔0.084 nm的5个波长的输出。
A broadband tunable multi-wavelength Brillouin / Erbium-doped fiber light source is designed. The use of stimulated Brillouin scattering in the fiber to produce the opposite direction of the transmission of Stokes signals will be returned to the linear cavity optical signal to eliminate the cavity self-excited mode, the tuning bandwidth of the light source only by erbium-doped fiber Amplifier bandwidth and Brillouin pumping signal tuning range decision. Brillouin pumping signal into the Brillouin gain medium before two times by the erbium-doped fiber amplifier amplification, effectively reducing the Brillouin gain pumping threshold. The light source achieves a tunable output range of 40 nm between 1530 and 1570 nm. When the signal power of Brillouin pump is 2 mW and the pump power of 1480 nm is 110 mW, the output of 5 wavelengths with a wavelength of 0.084 nm is obtained in the range of 1540 ~ 1566 nm.