Frequency Combs (Optical Frequency Comb Technology)

In 2025, Frequency comb technology gained renewed attention due to its expanding applications in next-generation atomic clocks, deep-space navigation, and high-precision spectroscopy, especially in missions related to exoplanet detection and time standards.

Frequency Comb

  • A frequency comb is a special type of laser whose spectrum consists of many evenly spaced frequencies, resembling the teeth of a comb.
  • Unlike a normal laser that emits a single frequency, it produces multiple precise and regularly spaced frequencies.
  • It is commonly generated using a mode-locked laser that emits very short pulses at a constant rate.
  • Frequency combs help measure unknown light frequencies with very high precision.
  • When unknown ....
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