Optical frequency comb generation with a flat-top spectrum from a mode-locked Yb fiber laser

Gwang Hoon Jang, Tai Hyun Yoon

Research output: Chapter in Book/Report/Conference proceedingConference contribution

1 Citation (Scopus)

Abstract

We present an ultrabroadband supercontinuum (SC) frequency comb generation covering the optical spectrum more than 1.2 octave from 570 nm to 1350 nm with a near flat-top power spectrum by using a mode-locked Yb fiber laser at 1030 nm as a master oscillator (MO). The repetition rate of the MO that has a spectral-width of 28 nm is 152 MHz and is phase-locked to a reference frequency synthesizer. A power amplifier is used to boost up the output power up to 1.3 W and the positively chirped amplified pulses are compressed by using a transmission grating pair. We used a commercially-available 10-cm long photonic crystal fiber that has two zero-dispersion wavelengths at 800 nm and 1093 nm, respectively, to generate an ultrabroadband SC frequency comb. Optical spectrum depending on the frequency chirp and pulse-width of the amplified pulses are analyzed to find an optimum coupling power as well as an optimum chirp parameter. We found that a dimensionless chirp parameter of 8.6 and a pulse-width of 517 fs for a chirped Gaussian pulse resulted in the optimum spectrum width of 1.2 octave.

Original languageEnglish
Title of host publicationProgress in Biomedical Optics and Imaging - Proceedings of SPIE
Volume8237
DOIs
Publication statusPublished - 2012 Apr 17
EventFiber Lasers IX: Technology, Systems, and Applications - San Francisco, CA, United States
Duration: 2012 Jan 232012 Jan 26

Other

OtherFiber Lasers IX: Technology, Systems, and Applications
CountryUnited States
CitySan Francisco, CA
Period12/1/2312/1/26

Fingerprint

Mode-locked fiber lasers
Comb and Wattles
Frequency synthesizers
Photonic crystal fibers
Power spectrum
chirp
Power amplifiers
fiber lasers
Lasers
octaves
Optics and Photonics
Wavelength
optical spectrum
pulse duration
pulses
oscillators
frequency synthesizers
power amplifiers
acceleration (physics)
power spectra

Keywords

  • mode-locked Yb fiber laser
  • photonic crystal fiber with two zero-dispersion wavelengths
  • Ultrabroadband supercontinuum frequency comb

ASJC Scopus subject areas

  • Atomic and Molecular Physics, and Optics
  • Electronic, Optical and Magnetic Materials
  • Biomaterials
  • Radiology Nuclear Medicine and imaging

Cite this

Jang, G. H., & Yoon, T. H. (2012). Optical frequency comb generation with a flat-top spectrum from a mode-locked Yb fiber laser. In Progress in Biomedical Optics and Imaging - Proceedings of SPIE (Vol. 8237). [82373T] https://doi.org/10.1117/12.905394

Optical frequency comb generation with a flat-top spectrum from a mode-locked Yb fiber laser. / Jang, Gwang Hoon; Yoon, Tai Hyun.

Progress in Biomedical Optics and Imaging - Proceedings of SPIE. Vol. 8237 2012. 82373T.

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Jang, GH & Yoon, TH 2012, Optical frequency comb generation with a flat-top spectrum from a mode-locked Yb fiber laser. in Progress in Biomedical Optics and Imaging - Proceedings of SPIE. vol. 8237, 82373T, Fiber Lasers IX: Technology, Systems, and Applications, San Francisco, CA, United States, 12/1/23. https://doi.org/10.1117/12.905394
Jang GH, Yoon TH. Optical frequency comb generation with a flat-top spectrum from a mode-locked Yb fiber laser. In Progress in Biomedical Optics and Imaging - Proceedings of SPIE. Vol. 8237. 2012. 82373T https://doi.org/10.1117/12.905394
Jang, Gwang Hoon ; Yoon, Tai Hyun. / Optical frequency comb generation with a flat-top spectrum from a mode-locked Yb fiber laser. Progress in Biomedical Optics and Imaging - Proceedings of SPIE. Vol. 8237 2012.
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