文档介绍：Vol. 20, No. 2 | February 2022
Fiber-delay-line-referenced optical frequency combs:
three stabilization schemes
K For ceo stabilization, in most cases, an 2 interferometer
f f
is commonly used for ceo detection. In this case, the ceo signal
Optical frequency combs (OFCs) emit optical pulse trains is also referenced to a radio reference and able to inherit its sta-
with millions of well-defined, mutually coherent, perfectly [20,21] f
– bility . Besides this, the phase noise of ceo could be reduced
spaced comb modes[1 7]. This unique feature enables coherent ’ f [22,23]
passively or by phase locking to the laser s rep as well .
phase linking among the optical, microwave, and terahertz
[8–10] Another significant approach that needs to be mentioned here
regimes . More importantly, the development of low-noise is to phase lock two comb modes in the OFC to two optical refer-
OFCs over the past two decades has experienced fascinating ences separately[24]. In this way, all the comb modes are capable
evolution, which fa