Can a Manual Adjustable Fiber Delay Line Achieve Femtosecond-Level Resolution?
This question appears often in photonics forums and laboratory planning meetings. Engineers and researchers want to know if a low cost manual adjustable fiber delay line can realistically reach femtosecond level resolution. The short answer is theoretically yes, but practically no for most real world applications. To understand why, we must look at the physics. A femtosecond is one...
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