论文标题
钛二氧化锂波导中的低温电既极化转化率
Cryogenic Electro-Optic Polarisation Conversion in Titanium in-diffused Lithium Niobate Waveguides
论文作者
论文摘要
量子光子学中的许多技术都需要低温条件才能运行。但是，活动组件（例如开关，调制器和相移等活动组件背后的基础平台都必须与这些操作条件兼容。为了解决这个问题，我们在钛二氯贝特锂波导中证明了1550nm光的电流极化转换器的1550nm光。为此，我们利用氯酸锂的电光特性在纤维到纤维传输> 43％的正交极化模式之间转换。我们达到23.6 +/- 3.3dB的调制深度，转换电压长度为28.8 V cm。这使得在单个集成平台上结合了低温光子学和活性成分。
Many technologies in quantum photonics require cryogenic conditions to operate. However, the underlying platform behind active components such as switches, modulators and phase shifters must be compatible with these operating conditions. To address this, we demonstrate an electro-optic polarisation converter for 1550nm light at 0.8K in titanium in-diffused lithium niobate waveguides. To do so, we exploit the electro-optic properties of lithium niobate to convert between orthogonal polarisation modes with a fiber-to-fiber transmission >43%. We achieve a modulation depth of 23.6 +/-3.3dB and a conversion voltage-length product of 28.8 V cm. This enables the combination of cryogenic photonics and active components on a single integration platform.
