The 1784 Fiber-coupled VCSEL Laser Source is designed for use in laboratory applications or for test and measurement of 25-Gbit/s Datacom devices. The1784 is an 850 nm, 25 Gbit/s, directly modulated, multimode vertical-cavity surface-emitting laser (VCSEL). It uses high-performance microwave circuitry to ensure clean delivery of the electrical input to the VCSEL chip, and the VCSEL's 50-μm output fiber enables the use of either 50 μm or 62.5 μm FC/PC connectorized fiber. The AC-coupled input and internal bias circuitry allows connection to any high-speed 50-Ω SMA-compatible signal source without the need for additional bias circuitry. A 10-position switch allows for optimization of the VCSEL bias for different Datacom applications.

1784光纤耦合VCSEL激光源设计用于实验室应用或25 gbit /s数据采集设备的测试和测量。1784是一个850纳米，25 Gbit/s，直接调制，多模垂直腔表面发射激光器(VCSEL)。它使用高性能的微波电路,确保清洁交付的电气输入VCSEL芯片,和VCSEL的50-μm输出纤维可以使用50μm或62.5μm FC / PC connectorized纤维。AC-coupled输入和内部偏置电路允许连接到任何高速50-ΩSMA-compatible信号源电路不需要额外的偏见。一个10位置的开关允许优化VCSEL偏差为不同的Datacom应用程序。