A novel optical wavelength conversion device for optical sampling
A novel optical wavelength conversion device for optical sampling
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一种用于光学采样的新型光学波长转换装置
DOI：
10.1109/imtc.1998.679881
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发表时间：
1998
期刊：
影响因子：
--
通讯作者：
K. Kuroda
中科院分区：
文献类型：
--
作者：
H. Yoshidaya;H. Takakura;K. Kuroda
提出了一种用于宽波段光学采样系统的新型光波长转换器件--光学参量漫射器（OPD）。OPD是通过使用具有不同带隙材料的多量子阱（MQW）结构制成的。我们的目标是实现波长转换的宽度超过30太赫兹使用OPD和我们模拟了四波混频（FWM）的皮秒级光脉冲到OPD的波长转换。实验结果表明，在10太赫兹的波长转换频率的转换效率为-10分贝。为了证实模拟结果，我们制作了一个基本的OPD和测量波长转换特性。这些测量给出了-22dB（约10 dB）的转换效率。对于基本OPD本身为-16dB）。模拟和实验结果的比较表明，通过优化OPD结构，即使在20 THz以上的转换频率的高波长转换效率的可能性。
We propose an optical parametric diffuser (OPD), a novel optical wavelength conversion device for wide wavelength band optical sampling systems. The OPD is made by using a multiple quantum well (MQW) structure with different band gap materials. Our aim is to achieve wavelength conversion of wider than 30 THz using the OPD and we simulated the wavelength conversion by four-wave mixing (FWM) for pico-second order optical pulses into the OPD. Experimental results indicated a conversion efficiency of -10 dB at a wavelength conversion frequency of 10 THz. To confirm this simulation result, we fabricated a basic OPD and measured the characteristics of wavelength conversion. These measurements gave a conversion efficiency of -22 dB (approx. -16 dB for the basic OPD itself) at a wavelength conversion frequency of 5 THz. Comparison of the simulation and experimental results suggested the possibility of high wavelength conversion efficiency even above 20 THz conversion frequency by optimizing the OPD structure.