Electronic synthesis of light
Electronic synthesis of light
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DOI：
10.1364/optica.4.000406
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发表时间：
2017-04-20
期刊：
影响因子：
10.4
通讯作者：
Papp, Scott B.
中科院分区：
文献类型：
--
作者：
Beha, Katja;Cole, Daniel C.;Papp, Scott B.
我们报告了使用电光在微波和光域之间进行双向频率转换。通信、计时和量子传感的进步都依赖于光波和微波信号的相干互操作。为了连接这些频率相差10，000倍的域，需要专门的技术，到目前为止，只有超快锁模激光器才能实现。相比之下，电光调制（EOM）梳产生确定性的微波率振荡的连续波激光器上施加。在这里，我们演示了电光产生的160太赫兹带宽的超连续谱，并实现f-2f自参考。超连续谱的相干性是通过对种子EOM梳上的电子噪声进行光学滤波来实现的。超连续谱的模式频率来自电子振荡器，并且它们实现了< 5 × 10（-14）的分数精度和稳定性，这为除了锁模要求之外具有宽模式间隔的可调谐梳开辟了一种新的机制。
We report on bidirectional frequency conversion between the microwave and optical domains using electro-optics. Advances in communications, time keeping, and quantum sensing have all come to depend upon the coherent interoperation of light wave and microwave signals. To connect these domains, which are separated by a factor of 10,000 in frequency, requires specialized technology that has until now only been achieved by ultrafast mode-locked lasers. In contrast, electro-optic modulation (EOM) combs arise deterministically by imposing microwave-rate oscillations on a continuous-wave laser. Here we demonstrate electro-optic generation of a 160 THz bandwidth super-continuum and realize f-2f self-referencing. Coherence of the supercontinuum is achieved through optical filtering of electronic noise on the seed EOM comb. The mode frequencies of the supercontinuum are derived from the electronic oscillator and they achieve < 5 x 10(-14) fractional accuracy and stability, which opens a novel regime for tunable combs with wide mode spacing apart from the requirements of mode locking.