scholarly journals Realisation of the metre by using a femtosecond laser frequency comb: applications in optical frequency metrology

2017 ◽  
Vol 8 ◽  
pp. 16
Author(s):  
Bousselham Samoudi
Keyword(s):  
Femtosecond Laser ◽  
Frequency Comb ◽  
Laser Frequency ◽  
Optical Frequency ◽  
Optical Frequency Metrology ◽  
Frequency Metrology

scholarly journals Optical Frequency Comb Generation based on Erbium Fiber Lasers

Nanophotonics ◽  
2016 ◽  
Vol 5 (2) ◽  
pp. 196-213 ◽  
Author(s):  
Stefan Droste ◽  
Gabriel Ycas ◽  
Brian R. Washburn ◽  
Ian Coddington ◽  
Nathan R. Newbury
Keyword(s):  
Frequency Comb ◽  
Building Blocks ◽  
Laser Frequency ◽  
Optical Frequency ◽  
Laser Amplifier ◽  
Optical Frequency Combs ◽  
Frequency Combs ◽  
Comb Generation ◽  
Optical Frequency Metrology ◽  
Frequency Metrology

AbstractOptical frequency combs have revolutionized optical frequency metrology and are being actively investigated in a number of applications outside of pure optical frequency metrology. For reasons of cost, robustness, performance, and flexibility, the erbium fiber laser frequency comb has emerged as the most commonly used frequency comb system and many different designs of erbium fiber frequency combs have been demonstrated. We review the different approaches taken in the design of erbium fiber frequency combs, including the major building blocks of the underlying mode-locked laser, amplifier, supercontinuum generation and actuators for stabilization of the frequency comb.

Precision spectroscopy of hydrogen and femtosecond laser frequency combs

2005 ◽  
Vol 363 (1834) ◽  
pp. 2155-2163 ◽  
Author(s):  
T.W Hänsch ◽  
J Alnis ◽  
P Fendel ◽  
M Fischer ◽  
C Gohle ◽  
...  
Keyword(s):  
Femtosecond Laser ◽  
Frequency Comb ◽  
Structure Constant ◽  
Laser Frequency ◽  
Fine Structure Constant ◽  
Optical Frequency ◽  
Precision Spectroscopy ◽  
Frequency Combs ◽  
Two Photon ◽  
Optical Frequency Metrology

Precision spectroscopy of the simple hydrogen atom has inspired dramatic advances in optical frequency metrology: femtosecond laser optical frequency comb synthesizers have revolutionized the precise measurement of optical frequencies, and they provide a reliable clock mechanism for optical atomic clocks. Precision spectroscopy of the hydrogen 1S–2S two-photon resonance has reached an accuracy of 1.4 parts in 10 14 , and considerable future improvements are envisioned. Such laboratory experiments are setting new limits for possible slow variations of the fine structure constant α and the magnetic moment of the caesium nucleus μ Cs in units of the Bohr magneton μ B .

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