Cholan N A, Al-Mansoori M H, Noor A S M, Ismail A, Mahdi M A
Wireless and Photonic Networks Research Center, Faculty of Engineering, Universiti Putra Malaysia, 43400 UPM Serdang.Selangor, Malaysia.
Opt Express. 2013 Mar 11;21(5):6131-8. doi: 10.1364/OE.21.006131.
A cost effective method of generating multi-wavelength based on the cascaded four wave mixing effect is experimentally demonstrated. The proposed scheme is free from external tunable laser sources and pump modulators, resulting from the use of a broadened linewidth tunable dual wavelength erbium-doped fiber laser as intracavity pump. In this configuration, the number of four wave mixing cascades becomes larger in tandem with the increment of erbium-doped fiber amplifier output power. When its output power is set at 20.57 dBm, six waves having optical signal to noise ratio larger than 10 dB are generated. The six waves are stable with peak power fluctuations less than 1 dB within 30 minutes period and tunable with wavelength spacing ranging from 1.03 nm to 11.31 nm.
实验证明了一种基于级联四波混频效应产生多波长的经济有效方法。该方案无需外部可调谐激光源和泵浦调制器，这是由于使用了宽带线宽可调谐双波长掺铒光纤激光器作为腔内泵浦。在这种配置下，四波混频级联的数量随着掺铒光纤放大器输出功率的增加而增加。当其输出功率设置为20.57 dBm时，产生了六个光信噪比大于10 dB的波。这六个波是稳定的，在30分钟内峰值功率波动小于1 dB，并且波长间隔在1.03 nm至11.31 nm范围内可调。
