Simulation of mode-locking by nonlinear polarization rotation in a semiconductor optical amplifier

Z. Li, X. Yang, E. Tangdiongga, H. Ju, G.D. Khoe, H.J.S. Dorren, D. Lenstra

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Uittreksel

We present a theoretical investigation of a mode locked laser that has a semiconductor optical amplifier (SOA) in its ring cavity. A mode-locked train of narrow pulses is obtained by combining nonlinear polarization rotation in the SOA and a polarization filter whose polarization axis is set such that the tail of optical pulses is removed in each cavity round-trip. The pulse narrowing process is demonstrated numerically and good qualitative agreement with experiments in our previous work is achieved. The pulse performance is largely determined by the ultrafast SOA gain dynamics and the cavity dispersion. Our simulation shows that the laser can produce a pulse train of subpicosecond pulsewidth at a repetition rate of 28 GHz for a moderate SOA current level. We observe that the laser can switch itself on or off depending on the initial pulse.
Originele taal-2Engels
Pagina's (van-tot)808-816
Aantal pagina's9
TijdschriftIEEE Journal of Quantum Electronics
Volume41
Nummer van het tijdschrift6
DOI's
StatusGepubliceerd - 2005

Vingerafdruk

Laser mode locking
Semiconductor optical amplifiers
light amplifiers
locking
Polarization
polarization
pulses
Lasers
Laser pulses
simulation
cavities
Laser modes
lasers
Switches
repetition
filters
Experiments
rings

Citeer dit

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abstract = "We present a theoretical investigation of a mode locked laser that has a semiconductor optical amplifier (SOA) in its ring cavity. A mode-locked train of narrow pulses is obtained by combining nonlinear polarization rotation in the SOA and a polarization filter whose polarization axis is set such that the tail of optical pulses is removed in each cavity round-trip. The pulse narrowing process is demonstrated numerically and good qualitative agreement with experiments in our previous work is achieved. The pulse performance is largely determined by the ultrafast SOA gain dynamics and the cavity dispersion. Our simulation shows that the laser can produce a pulse train of subpicosecond pulsewidth at a repetition rate of 28 GHz for a moderate SOA current level. We observe that the laser can switch itself on or off depending on the initial pulse.",
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Simulation of mode-locking by nonlinear polarization rotation in a semiconductor optical amplifier. / Li, Z.; Yang, X.; Tangdiongga, E.; Ju, H.; Khoe, G.D.; Dorren, H.J.S.; Lenstra, D.

In: IEEE Journal of Quantum Electronics, Vol. 41, Nr. 6, 2005, blz. 808-816.

Onderzoeksoutput: Bijdrage aan tijdschriftTijdschriftartikelAcademicpeer review

TY - JOUR

T1 - Simulation of mode-locking by nonlinear polarization rotation in a semiconductor optical amplifier

AU - Li, Z.

AU - Yang, X.

AU - Tangdiongga, E.

AU - Ju, H.

AU - Khoe, G.D.

AU - Dorren, H.J.S.

AU - Lenstra, D.

PY - 2005

Y1 - 2005

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AB - We present a theoretical investigation of a mode locked laser that has a semiconductor optical amplifier (SOA) in its ring cavity. A mode-locked train of narrow pulses is obtained by combining nonlinear polarization rotation in the SOA and a polarization filter whose polarization axis is set such that the tail of optical pulses is removed in each cavity round-trip. The pulse narrowing process is demonstrated numerically and good qualitative agreement with experiments in our previous work is achieved. The pulse performance is largely determined by the ultrafast SOA gain dynamics and the cavity dispersion. Our simulation shows that the laser can produce a pulse train of subpicosecond pulsewidth at a repetition rate of 28 GHz for a moderate SOA current level. We observe that the laser can switch itself on or off depending on the initial pulse.

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DO - 10.1109/JQE.2005.846689

M3 - Article

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EP - 816

JO - IEEE Journal of Quantum Electronics

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