Passive mode-locking of a Ti:sapphire laser by InGaP quantum-dot saturable absorber

V.G. Savitski; P.J. Schlosser; J.E. Hastie; A.B. Krysa; J.S. Roberts; M.D. Dawson; D. Burns; S. Calvez

doi:10.1109/LPT.2009.2037599

Passive mode-locking of a Ti:sapphire laser by InGaP quantum-dot saturable absorber

V.G. Savitski, P.J. Schlosser, J.E. Hastie, A.B. Krysa, J.S. Roberts, M.D. Dawson, D. Burns, S. Calvez

Research output: Contribution to journal › Article › peer-review

21 Citations (Scopus)

Abstract

We demonstrate the use of a novel InGaP quantum-dot (QD) saturable absorber (SA) to induce passively mode-locked (ML) operation of a Ti : sapphire laser. Pulses as short as 518 fs are obtained at 752 nm with an average output power of up to 190 mW for 2.3 W of absorbed pump power at 532 nm. The absorption recovery of the SA is characterized by two decay coefficients: a fast and a slow component having time constants of 0.4 and 300 ps, respectively. The saturation fluence of the InGaP QDs was measured to be 28 J/cm², the initial low-signal absorption was 1.5%, where 1.15% was nonsaturable loss.

Original language	English
Pages (from-to)	209-211
Number of pages	3
Journal	IEEE Photonics Technology Letters
Volume	22
Issue number	4
DOIs	https://doi.org/10.1109/LPT.2009.2037599
Publication status	Published - 15 Feb 2010

Keywords

laser absorbers
mode-locked (ML) laser
spectroscopy
ultrafast optics

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10.1109/LPT.2009.2037599

Cite this

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title = "Passive mode-locking of a Ti:sapphire laser by InGaP quantum-dot saturable absorber",

abstract = "We demonstrate the use of a novel InGaP quantum-dot (QD) saturable absorber (SA) to induce passively mode-locked (ML) operation of a Ti : sapphire laser. Pulses as short as 518 fs are obtained at 752 nm with an average output power of up to 190 mW for 2.3 W of absorbed pump power at 532 nm. The absorption recovery of the SA is characterized by two decay coefficients: a fast and a slow component having time constants of 0.4 and 300 ps, respectively. The saturation fluence of the InGaP QDs was measured to be 28 J/cm2, the initial low-signal absorption was 1.5\%, where 1.15\% was nonsaturable loss.",

keywords = "laser absorbers, mode-locked (ML) laser, spectroscopy, ultrafast optics",

author = "V.G. Savitski and P.J. Schlosser and J.E. Hastie and A.B. Krysa and J.S. Roberts and M.D. Dawson and D. Burns and S. Calvez",

year = "2010",

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day = "15",

doi = "10.1109/LPT.2009.2037599",

language = "English",

volume = "22",

pages = "209--211",

journal = "IEEE Photonics Technology Letters",

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TY - JOUR

T1 - Passive mode-locking of a Ti:sapphire laser by InGaP quantum-dot saturable absorber

AU - Savitski, V.G.

AU - Schlosser, P.J.

AU - Hastie, J.E.

AU - Krysa, A.B.

AU - Roberts, J.S.

AU - Dawson, M.D.

AU - Burns, D.

AU - Calvez, S.

PY - 2010/2/15

Y1 - 2010/2/15

N2 - We demonstrate the use of a novel InGaP quantum-dot (QD) saturable absorber (SA) to induce passively mode-locked (ML) operation of a Ti : sapphire laser. Pulses as short as 518 fs are obtained at 752 nm with an average output power of up to 190 mW for 2.3 W of absorbed pump power at 532 nm. The absorption recovery of the SA is characterized by two decay coefficients: a fast and a slow component having time constants of 0.4 and 300 ps, respectively. The saturation fluence of the InGaP QDs was measured to be 28 J/cm2, the initial low-signal absorption was 1.5%, where 1.15% was nonsaturable loss.

AB - We demonstrate the use of a novel InGaP quantum-dot (QD) saturable absorber (SA) to induce passively mode-locked (ML) operation of a Ti : sapphire laser. Pulses as short as 518 fs are obtained at 752 nm with an average output power of up to 190 mW for 2.3 W of absorbed pump power at 532 nm. The absorption recovery of the SA is characterized by two decay coefficients: a fast and a slow component having time constants of 0.4 and 300 ps, respectively. The saturation fluence of the InGaP QDs was measured to be 28 J/cm2, the initial low-signal absorption was 1.5%, where 1.15% was nonsaturable loss.

KW - laser absorbers

KW - mode-locked (ML) laser

KW - spectroscopy

KW - ultrafast optics

UR - https://www.scopus.com/pages/publications/76249105803

U2 - 10.1109/LPT.2009.2037599

DO - 10.1109/LPT.2009.2037599

M3 - Article

SN - 1041-1135

VL - 22

SP - 209

EP - 211

JO - IEEE Photonics Technology Letters

JF - IEEE Photonics Technology Letters

IS - 4

ER -

Passive mode-locking of a Ti:sapphire laser by InGaP quantum-dot saturable absorber

Abstract

Keywords

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INP/AIGALNP QUANTUM DOT LASERS FOR 650-780NM EMISSION

MUSIC: MODULAR ULTRAFAST SOURCES

ADVANCED SOLID STATE LASER SOURCES AND SYSTEMS

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Passive mode-locking of a Ti:sapphire laser by InGaP quantum-dot saturable absorber

Abstract

Keywords

Access to Document

Other files and links

Fingerprint

Projects

INP/AIGALNP QUANTUM DOT LASERS FOR 650-780NM EMISSION

MUSIC: MODULAR ULTRAFAST SOURCES

ADVANCED SOLID STATE LASER SOURCES AND SYSTEMS

Cite this