Marangoni M, Lobino M, Ramponi R, Cianci E, Foglietti V
Opt Express. 2006 Jan 9;14(1):248-53. doi: 10.1364/opex.14.000248.
High-quality buried optical-waveguides were fabricated by reverse-proton-exchange in periodically-poled stoichiometric lithium tantalate. Experimental results show excellent fiber-mode matching, losses below 0.3 dB/cm and almost non-critical conditions for a quasi-phase-matched second-harmonic generation process from telecom wavelengths. The interaction length of 2.5 cm is the highest so far reported for lithium tantalate waveguides.
通过在周期性极化化学计量比钽酸锂中进行反向质子交换制备了高质量的掩埋光波导。实验结果表明，光纤模式匹配良好，损耗低于0.3 dB/cm，并且对于从电信波长进行的准相位匹配二次谐波产生过程，几乎处于非临界条件。2.5厘米的相互作用长度是迄今为止钽酸锂波导所报道的最高值。
