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Octave-Spanning Optical Frequency Comb Generation Using a Directly-Modulated Microlaser Source

A coherent optical frequency comb with a gigahertz line spacing is important in diverse fields, such as calibration of astronomical spectrographs and wavelength division multiplexing optical communications. In this paper, we realize octave-spanning 10-GHz optical combs using a directly-modulated 1.55 μm microlaser as a seeding source. A 6.4 ps transform-limited pulse is successfully generated from the directly-modulated laser output through optimal chirp compensation in a fiber. Moreover, after amplifying by an EDFA, the optical pulse width is further reduced to 140 fs by combing the self-phase modulation effect and the anomalous group velocity dispersion in commercial fibers. Finally, a coherent optical comb spanning from 900-2400 nm is produced in a home-made fluorotellurite fiber using the 140-fs pulse boosted to a few Watts as a seeding source. The experimental results demonstrate that optical combs generated from the directly-modulated microlaser have the potential for a fully stabilized frequency comb.

Ketersediaan

Informasi Detail

Judul Seri

JOURNAL OF LIGHTWAVE TECHNOLOGY; Vol.40 No.16 August 15 2022

No. Panggil

-

Penerbit

: .,

Deskripsi Fisik

p. 5575-5582

Bahasa

English

ISBN/ISSN

-

Klasifikasi

NONE

Tipe Isi

-

Tipe Media

-

Tipe Pembawa

-

Edisi

-

Subjek

DIRECT MODULATION
OPTICAL FREQUENCY COMB
MICROLASERS
OCTAVE-SPANNING

Info Detail Spesifik

DOI: 10.1109/JLT.2022.3179828

Pernyataan Tanggungjawab

Ji-Liang Wu, Xiaohui Guo, Yadong Jiao, Xucheng Zhang, Ting Wang, Yue-De Yang, Jin-Long Xiao, Daming Zhang, Guanshi Qin, Yong-Zhen Huang

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