An eye-safe white-lighting source configured with violet laser diode (VLD) and an ultrafast color convertor using the BEHP-PPV + MEH-PPV polymer blend is demonstrated for optical wireless communication system. The BEHP-PPV + MEH-PPV polymer is a mixture of green emitter (BEHP-PPV) and red emitter (MEH-PPV) with a compositional ratio of 5:15 for obtaining warm white light after VLD illumination. For point-to-point 64-quadrature amplitude modulation orthogonal frequency division multiplexing transmission without adding the BEHP-PPV + MEH-PPV blend, the raw data rate can reach as high as 25.2 Gbit/s. After adhering the BEHP-PPV + MEH-PPV polymer blend in front of the VLD for color conversion, it demonstrates a qualified warm white light source with a correlated color temperature of 3606 K, a color rendering index of 84.6 and a CIE coordinate at (0.3768, 0.3226). As a large amount of the VLD power is color converted to broadband luminescence from green- to red-colored light, the transmission performance of this mixed white light source is somewhat degraded. However, the ultrafast time-resolved photoluminescent decay analysis of the BEHP-PPV + MEH-PPV polymer blend reveals a lifetime that enables the maximal transmission data rate to still be reachable to 12.8 Gbit/s with a receiving bit-error ratio of 3.37 × 10^–3 below the forward error correction criterion.

中文翻译：

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具有超快BEHP-PPV + MEH-PPV聚合物共混物的变色紫激光二极管，用于高速白光照明数据链路

演示了配置有紫激光二极管（VLD）和使用BEHP-PPV + MEH-PPV聚合物共混物的超快颜色转换器的人眼安全白光光源，用于光学无线通信系统。BEHP-PPV + MEH-PPV聚合物是绿色发射体（BEHP-PPV）和红色发射体（MEH-PPV）的混合物，其组成比为5:15，以便在VLD照射后获得暖白光。对于不添加BEHP-PPV + MEH-PPV混合的点对点64正交调幅正交频分复用传输，原始数据速率可高达25.2 Gbit / s。将BEHP-PPV + MEH-PPV聚合物共混物粘附在VLD前面进行颜色转换后，它证明了合格的暖白光源，相关色温为3606 K，显色指数为84.6，CIE坐标为（ 0。3768，0.3226）。由于大量的VLD功率从绿色光转换为宽带光到红色光，这种混合白色光源的传输性能有所降低。但是，对BEHP-PPV + MEH-PPV聚合物共混物的超快时间分辨光致发光衰减分析显示了寿命，该寿命使得最大传输数据速率仍可达到12.8 Gbit / s，接收误码率为3.37× 10^-3低于前向纠错标准。