Share Email Print
cover

Proceedings Paper

Optical frequency comb generation with a flat-top spectrum from a mode-locked Yb fiber laser
Author(s): Gwang Hoon Jang; Tai Hyun Yoon
Format Member Price Non-Member Price
PDF $14.40 $18.00
cover GOOD NEWS! Your organization subscribes to the SPIE Digital Library. You may be able to download this paper for free. Check Access

Paper 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.

Paper Details

Date Published: 15 February 2012
PDF: 6 pages
Proc. SPIE 8237, Fiber Lasers IX: Technology, Systems, and Applications, 82373T (15 February 2012); doi: 10.1117/12.905394
Show Author Affiliations
Gwang Hoon Jang, Korea Univ. (Korea, Republic of)
Tai Hyun Yoon, Korea Univ. (Korea, Republic of)


Published in SPIE Proceedings Vol. 8237:
Fiber Lasers IX: Technology, Systems, and Applications
Eric C. Honea; Sami T. Hendow, Editor(s)

© SPIE. Terms of Use
Back to Top