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  5. Gigahertz repetition rate ultrashort laser pulses from coherent external Fabry-Pérot cavity
 
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Gigahertz repetition rate ultrashort laser pulses from coherent external Fabry-Pérot cavity

Journal
AIP Conference Proceedings
ISSN
0094243X
Date Issued
2020-01-08
Author(s)
Chan, Tian Seng
Universiti Malaysia Perlis
Mohamad Halim Abd. Wahid
Universiti Malaysia Perlis
Prabakaran A/L Poopalan
Universiti Malaysia Perlis
DOI
10.1063/1.5142117
Handle (URI)
https://hdl.handle.net/20.500.14170/4603
Abstract
Transient analysis of ultrashort laser pulses (USP) output from a coherent external Fabry-Pérot cavity (CEFPC) comprising a group delay dispersion (GDD) balanced ultrafast Bragg reflector and a negative dispersion double-chirped mirror for sub-terahertz repetition rate generation is investigated. Analytical results manifest a low multiplication factor (MF) of the CEFPC with value equal to any non-integer, real number greater than unity (NIRNGU) could lead to the amplitude varying, transient timing-jitter, but at very high constant repetition rate (frep-o-Constant) USP output pulse train. For the configuration - (MF) TaeFP = TaUSP-in, where MF is a NZRNGU, the MF is not a factor which usually describes the relationship between the frep-o and frep-i, but rather a factor which determines the correlation of USPs TUSP-in and TeFP. Besides, this mentioned configuration is proven to be more easily to generate a CW, high frep-o USP train (>10GHz) at steady-state, compared to the conventional configuration with MF equal to a non-zero positive integer, which requires a much shorter external cavity length to generate a similar high frep-o USP train.
Funding(s)
Kementerian Pendidikan Malaysia
File(s)
Gigahertz repetition rate ultrashort laser pulses from coherent external Fabry-Pérot cavity.pdf (57.93 KB)
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