Schober Andrew M, Fejer Martin M, Carrasco Silvia, Torner Lluis
E. L. Ginzton Laboratory, Stanford University, Stanford, California 94305, USA.
Opt Lett. 2005 Aug 1;30(15):1983-5. doi: 10.1364/ol.30.001983.
We demonstrate the excitation of solitons in a parametric amplifier with enhanced signal content through the use of a chirped-period quasi-phase-matching grating. This technique affords a low soliton threshold at the input end of a parametric amplifier, and the subsequent transformation to a desired soliton that exists at nonzero wave-vector mismatch through the use of a linearly chirped quasi-phase-matching grating. This approach has an advantage over direct excitation of solitons at nonzero wave-vector mismatch in uniform nonlinear materials and holds potential for improving the efficiency and mode quality of high-gain parametric amplifiers.
我们展示了通过使用啁啾周期准相位匹配光栅，在具有增强信号含量的参量放大器中孤子的激发。该技术在参量放大器的输入端提供了低孤子阈值，并通过使用线性啁啾准相位匹配光栅，随后将其转换为在非零波矢失配情况下存在的所需孤子。这种方法相对于在均匀非线性材料中直接在非零波矢失配情况下激发孤子具有优势，并具有提高高增益参量放大器效率和模式质量的潜力。
