Laser written waveguide photonic quantum circuits

作者：Marshall Graham D^*; Politi Alberto; Matthews Jonathan C F; Dekker Peter; Ams Martin; Withford Michael J; O'Brien Jeremy L

来源：Optics Express, 2009, 17(15): 12546-12554.

DOI：10.1364/OE.17.012546

We report photonic quantum circuits created using an ultrafast laser processing technique that is rapid, requires no lithographic mask and can be used to create three-dimensional networks of waveguide devices. We have characterized directional couplers-the key functional elements of photonic quantum circuits-and found that they perform as well as lithographically produced waveguide devices. We further demonstrate high-performance interferometers and an important multi-photon quantum interference phenomenon for the first time in integrated optics. This direct-write approach will enable the rapid development of sophisticated quantum optical circuits and their scaling into three-dimensions.

• 出版日期2009-7-20