publication venue for Contactless Monitoring of Heart Rate Variability during Respiratory Maneuvers. 22:14563-14573. 2022-01-01 High Sensitivity Refractive Index Sensor Based on Highly Overcoupled Tapered Fiber-Optic Couplers. 17:333-339. 2017-01-01 Experimental Investigation of Fused Biconical Fiber Couplers for Measuring Refractive Index Changes in Aqueous Solutions. 16:132-136. 2016-01-01