Broadband optical frequency comb generation with flexible frequency spacing and center wavelength

Siyuan Yu, Fangdi Bao, Hao Hu*

*Corresponding author for this work

Research output: Contribution to journalJournal articleResearchpeer-review

213 Downloads (Pure)

Abstract

A broad-band optical frequency comb with flexible frequency spacing and center wavelength is proposed and experimentally demonstrated. The proposed scheme consists of a single continuous-wave laser, cascaded Mach-Zehnder modulator (MZM) and phase modulator (PM), two-stage dispersion-flattened highly nonlinear fibers (DF-HNLFs) and a single-mode fiber (SMF) in between. A narrow-band frequency comb is generated in the MZM and PM and a broad-band frequency comb is achieved by self-phase modulation (SPM) based spectral broadening in DF-HNLFs. Since the DF-HNLF has low dispersion over a wide wavelength range, the central wavelength of the generated frequency comb can be tuned from 1535 nm to 1564 nm. In addition, the central wavelength of frequency comb has a potential to be extended to L-band according to the dispersion profile of the DF-HNLF and the operation bandwidths of the MZM and PM. By tuning the driving radio-frequency (RF) signal, the frequency spacing of the generated frequency comb can be tuned. In the experiment, the frequency spacing of 25 GHz and 40 GHz has been achieved.
Original languageEnglish
JournalI E E E Photonics Journal
Volume10
Issue number3
Number of pages6
ISSN1943-0655
DOIs
Publication statusPublished - 2018

Keywords

  • Fiber non-linear optics
  • Frequency combs
  • Dispersion (waves)
  • Fiber
  • Fiber optics systems

Cite this

@article{c3095ae3dec94063b0fb2b63b56bbe53,
title = "Broadband optical frequency comb generation with flexible frequency spacing and center wavelength",
abstract = "A broad-band optical frequency comb with flexible frequency spacing and center wavelength is proposed and experimentally demonstrated. The proposed scheme consists of a single continuous-wave laser, cascaded Mach-Zehnder modulator (MZM) and phase modulator (PM), two-stage dispersion-flattened highly nonlinear fibers (DF-HNLFs) and a single-mode fiber (SMF) in between. A narrow-band frequency comb is generated in the MZM and PM and a broad-band frequency comb is achieved by self-phase modulation (SPM) based spectral broadening in DF-HNLFs. Since the DF-HNLF has low dispersion over a wide wavelength range, the central wavelength of the generated frequency comb can be tuned from 1535 nm to 1564 nm. In addition, the central wavelength of frequency comb has a potential to be extended to L-band according to the dispersion profile of the DF-HNLF and the operation bandwidths of the MZM and PM. By tuning the driving radio-frequency (RF) signal, the frequency spacing of the generated frequency comb can be tuned. In the experiment, the frequency spacing of 25 GHz and 40 GHz has been achieved.",
keywords = "Fiber non-linear optics, Frequency combs, Dispersion (waves), Fiber , Fiber optics systems",
author = "Siyuan Yu and Fangdi Bao and Hao Hu",
year = "2018",
doi = "10.1109/JPHOT.2018.2832842",
language = "English",
volume = "10",
journal = "I E E E Photonics Journal",
issn = "1943-0655",
publisher = "IEEE",
number = "3",

}

Broadband optical frequency comb generation with flexible frequency spacing and center wavelength. / Yu, Siyuan; Bao, Fangdi; Hu, Hao.

In: I E E E Photonics Journal, Vol. 10, No. 3, 2018.

Research output: Contribution to journalJournal articleResearchpeer-review

TY - JOUR

T1 - Broadband optical frequency comb generation with flexible frequency spacing and center wavelength

AU - Yu, Siyuan

AU - Bao, Fangdi

AU - Hu, Hao

PY - 2018

Y1 - 2018

N2 - A broad-band optical frequency comb with flexible frequency spacing and center wavelength is proposed and experimentally demonstrated. The proposed scheme consists of a single continuous-wave laser, cascaded Mach-Zehnder modulator (MZM) and phase modulator (PM), two-stage dispersion-flattened highly nonlinear fibers (DF-HNLFs) and a single-mode fiber (SMF) in between. A narrow-band frequency comb is generated in the MZM and PM and a broad-band frequency comb is achieved by self-phase modulation (SPM) based spectral broadening in DF-HNLFs. Since the DF-HNLF has low dispersion over a wide wavelength range, the central wavelength of the generated frequency comb can be tuned from 1535 nm to 1564 nm. In addition, the central wavelength of frequency comb has a potential to be extended to L-band according to the dispersion profile of the DF-HNLF and the operation bandwidths of the MZM and PM. By tuning the driving radio-frequency (RF) signal, the frequency spacing of the generated frequency comb can be tuned. In the experiment, the frequency spacing of 25 GHz and 40 GHz has been achieved.

AB - A broad-band optical frequency comb with flexible frequency spacing and center wavelength is proposed and experimentally demonstrated. The proposed scheme consists of a single continuous-wave laser, cascaded Mach-Zehnder modulator (MZM) and phase modulator (PM), two-stage dispersion-flattened highly nonlinear fibers (DF-HNLFs) and a single-mode fiber (SMF) in between. A narrow-band frequency comb is generated in the MZM and PM and a broad-band frequency comb is achieved by self-phase modulation (SPM) based spectral broadening in DF-HNLFs. Since the DF-HNLF has low dispersion over a wide wavelength range, the central wavelength of the generated frequency comb can be tuned from 1535 nm to 1564 nm. In addition, the central wavelength of frequency comb has a potential to be extended to L-band according to the dispersion profile of the DF-HNLF and the operation bandwidths of the MZM and PM. By tuning the driving radio-frequency (RF) signal, the frequency spacing of the generated frequency comb can be tuned. In the experiment, the frequency spacing of 25 GHz and 40 GHz has been achieved.

KW - Fiber non-linear optics

KW - Frequency combs

KW - Dispersion (waves)

KW - Fiber

KW - Fiber optics systems

U2 - 10.1109/JPHOT.2018.2832842

DO - 10.1109/JPHOT.2018.2832842

M3 - Journal article

VL - 10

JO - I E E E Photonics Journal

JF - I E E E Photonics Journal

SN - 1943-0655

IS - 3

ER -