Fiber-coupled balanced optical cross-correlator using PPKTP waveguides

作者：Callahan Patrick T^*; Safak Kemal; Battle Philip; Roberts Tony D; Kaertner Franz X

来源：Optics Express, 2014, 22(8): 9749-9758.

DOI：10.1364/OE.22.009749

We present a fiber-coupled balanced optical cross-correlator using waveguides in periodically-poled KTiOPO4 (PPKTP). The normalized conversion efficiency of the waveguide device is measured to be eta(0) = 1.02% / [W.cm(2)], which agrees well with theory and simulation. This result represents an expected improvement of a factor of 20 over previous bulk-optic devices. The sensitivity of the cross-correlator is characterized and shown to be comparable to the free-space bulk-optic version, with the potential for significant performance enhancements in the future.

• 出版日期2014-4-21
• 单位MIT