81613A Return Loss Module with integrated Laser Source 主要技術規格 Return loss dynamic range > 75 dB Return loss uncertainty down to ±0.25 dB with external broadband source Wide operating wavelength range: 1250 nm to 1640 nm Built-in Power Monitor and Laser Source: 1310/ 1550 nm Built-in step-by step guided wizard with 8163B mainframe 敘述 Keysight's 81613A Return Loss module is the tool of choice for measuring return loss (RL) and reflection of single-mode fiberoptic components. The module measures the optical power into and reflected back from the device under test and calculates and displays the return loss. Thorough built-in functionality provides the correct coupling and detection ratios and eliminates the effects of dark current and residual backscatter in the instrument setup to provide accurate measurements over a wide dynamic range. The Return Loss modules can be used in any 816x Lightwave mainframe and with the internal Fabry-Perot light source or an external fixed-wavelength or
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