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It is a pivotal step in the measurement of carrier-envelope phase offset frequency in optical femtosecond frequency combs that a stable octave-spanning super-continuum spectrum is generated. In this paper, a home-made Yb:YCOB femtosecond laser pulse is led into a tapered fiber in which some nonlinear effects like self pulse modulation are generated and the four-wave mixing is made to broaden a spectrum to more than one octave-spanning. A Yb:YCOB oscillator emits 130 fs, 620 mW and 76.8 MHz laser pulses, the center wavelength at 1052 nm. Such pulses are focused into a tapered single-mode fiber, and then more than one octave-spanning supercontinuum from 550 nm to 1350 nm has been produced. The coupling efficiency can reach 52% when 323 mW SC laser pulses are detected. Based on the experimental result, a new optical comb will be built with the Yb:YCOB solid state laser as the light source.
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Keywords:
- Yb:YCOB crystal /
- solid state femtosecond laser /
- tapered single mode fiber /
- supercontinuum
[1] Brabec T, Krausz F 2000 Rev. Mod. Phys. 72 545
[2] Holzwarth R, Udem T, Hänsch T W, Knight J C, Wadsworth W J, Russell P S J 2000 Phys. Rev. E 85 2264
[3] Udem T, Reichert J, Holzwarth R H, Hansch T W 1999 Phys. Rev. Lett. 82 3568
[4] Ye J, Yoon T H, Hall J L, Madej A A, Bernard J E, Siemsen K J, Marnet L 2000 Phys. Rev. Lett. 85 3797
[5] Udem T, Reichert J, Hansch T W, Kourogi M 2000 Phys. Rev. A 62 031801
[6] Washburn B R, Diddams S A, Newbury N R, Nicholson J W, Yan M F, Jørgensen C G 2004 Opt. Lett. 29 250
[7] Diddams S A, Jones D J, Ye J, Cundiff S T, Hall J L, Ranka J K, Windeler R S, Holzwarth R, Udem T, Hänsch T W 2000 Phys. Rev. Lett. 84 5102
[8] Yan R P, Yu X, Chen D Y, Chen F, Li X D, Ma Y F, Yu J H 2012 Chin. Phys. B 21 024208
[9] Wang Y Y, Xu D G, Liu C M, Wang W P, Yao J Q 2012 Chin. Phys. B 21 094212
[10] Holzwarth R, Zimmermann M, Udem T, Hänsch T W, Russbldt P, Gäbel K, Poprawe R, Knight J C, Wadsworth W J, Russell P 2001 Opt. Lett. 26 1376
[11] Meyer S A, Squier J A, Diddams S A 2008 Eur. Phys. J. D 48 19
[12] Pekarek S, Sdmeyer T, Lecomte S, Kundermann S, Dudley J M, Kelle U 2011 Opt. Express 19 16491
[13] Klenner A, Golling M, Keller U 2013 Opt. Express 21 10351
[14] Birks T A, Wadsworth W J, Russell P S J 2000 Opt. Lett. 25 1415]
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[1] Brabec T, Krausz F 2000 Rev. Mod. Phys. 72 545
[2] Holzwarth R, Udem T, Hänsch T W, Knight J C, Wadsworth W J, Russell P S J 2000 Phys. Rev. E 85 2264
[3] Udem T, Reichert J, Holzwarth R H, Hansch T W 1999 Phys. Rev. Lett. 82 3568
[4] Ye J, Yoon T H, Hall J L, Madej A A, Bernard J E, Siemsen K J, Marnet L 2000 Phys. Rev. Lett. 85 3797
[5] Udem T, Reichert J, Hansch T W, Kourogi M 2000 Phys. Rev. A 62 031801
[6] Washburn B R, Diddams S A, Newbury N R, Nicholson J W, Yan M F, Jørgensen C G 2004 Opt. Lett. 29 250
[7] Diddams S A, Jones D J, Ye J, Cundiff S T, Hall J L, Ranka J K, Windeler R S, Holzwarth R, Udem T, Hänsch T W 2000 Phys. Rev. Lett. 84 5102
[8] Yan R P, Yu X, Chen D Y, Chen F, Li X D, Ma Y F, Yu J H 2012 Chin. Phys. B 21 024208
[9] Wang Y Y, Xu D G, Liu C M, Wang W P, Yao J Q 2012 Chin. Phys. B 21 094212
[10] Holzwarth R, Zimmermann M, Udem T, Hänsch T W, Russbldt P, Gäbel K, Poprawe R, Knight J C, Wadsworth W J, Russell P 2001 Opt. Lett. 26 1376
[11] Meyer S A, Squier J A, Diddams S A 2008 Eur. Phys. J. D 48 19
[12] Pekarek S, Sdmeyer T, Lecomte S, Kundermann S, Dudley J M, Kelle U 2011 Opt. Express 19 16491
[13] Klenner A, Golling M, Keller U 2013 Opt. Express 21 10351
[14] Birks T A, Wadsworth W J, Russell P S J 2000 Opt. Lett. 25 1415]
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