Abstract

We demonstrate a new and extremely compact design for a directly diode-pumped Yb:glass laser oscillator that is used as femtosecond light source for supercontinuum generation. The laser is capable of generating femtosecond pulses of 150 fs and pulse energies up to 39 nJ at a repetition rate of 20 MHz. By using a Herriott-type multi-pass cell, 70 % of the total resonator length are folded to only 30 cm. With off-the-shelf components, our setup has a footprint of 62 × 23 cm2. Using smaller mechanical components, the size can easily be further decreased. In combination with a tapered fiber, the laser forms a cheap, stable, and compact femtosecond supercontinuum source with up to 400 mW of average whitelight power.

© 2006 Optical Society of America

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  1. T. Betz, J. Teipel, D. Koch, W. Härtig, J. Guck, J. K¨as and H. Giessen, "Excitation beyond the monochromatic laser limit: simultaneous 3-D confocal and multiphoton microscopy with a tapered fiber as white-light laser source," J. Biomed. Optics 10,054009 (2005).
    [CrossRef]
  2. M. Punke, F. Hoos, C. Karnutsch, U. Lemmer, N. Linder and K. Streubel, "High-repetition-rate white-light pump-probe spectroscopy with a tapered fiber," Opt. Lett. 31,1157-1159 (2006).
    [CrossRef] [PubMed]
  3. F.G. Omenetto, N.A. Wolchover, M.R. Wehner, M. Ross, A. Efimov, A.J. Taylor, V.V.R.K. Kumar, A.K. George, J.C. Knight, N.Y. Joly and P. St. Russell, "Spectrally smooth supercontinuum from 350 nm to 3 ?m in subcentimeter lengths of soft-glass photonic crystal fibers," Opt. Express 14,4928-4934 (2006).
    [CrossRef] [PubMed]
  4. H. Kano and H. Hamaguchi, "Vibrationally resonant imaging of a single living cell by supercontinuum-based multiplex coherent anit-Stokes Raman scattering microscopy," Opt. Express 13,1322-1327 (2005).
    [CrossRef] [PubMed]
  5. W.J. Wadsworth, N. Joly, J.C. Knight, T.A. Birks, F. Biancalana and P.St.J. Russell, "Supercontinuum and fourwave mixing with Q-switched pulses in endlessly single-mode photonic crystal fibres," Opt. Express 12,299-309 (2006).
    [CrossRef]
  6. D.A. Akimov, A.A. Ivanov, M.V. Alfimov, S.N. Bagayev, T.A. Birks, W.J. Wadsworth, P.St.J. Russell, A.B. Fedotov, V.S. Pivtsov, A.A. Podhivalov and A.M. Zheltikov, "Two-octave spectral broadening of subnanojoule Cr:forsterite femtosecond laser pulses in tapered fibers," Appl. Phys. B 74,307-311 (2002).
    [CrossRef]
  7. J. Teipel, K. Franke, D. Türke, F. Warken, D. Meiser, M. Leuschner and H. Giessen, "Characteristics of supercontinuum generation in tapered fibers using femtosecond laser pulses," Appl. Phys. B 77,245-251 (2003).
    [CrossRef]
  8. J. Teipel, D. Türke, H. Giessen, A. Killi, U. Morgner, M. Lederer, D. Kopf and M. Kolesik, "Diode-pumped, ultrafast, multi-octave supercontinuum source at repetition rates between 500 kHz and 20 MHz using Yb:glass lasers and tapered fibers," Opt. Express 13,1477-1485 (2005).
    [CrossRef] [PubMed]
  9. A. Killi, U. Morgner, M.J. Lederer and D. Kopf,"Diode-pumped femtosecond laser oscillator with cavity dumping," Opt. Lett. 29,1288-1290 (2005).
    [CrossRef]
  10. C. Hönninger, F. Morier-Genoud, M. Moser and U. Keller, "Efficient and tunable diode-pumped femtosecond Yb:glass lasers," Opt. Lett. 23,126-128 (1998).
    [CrossRef]
  11. F.X. Kärtner, I.D. Jung and U. Keller, "Soliton Mode-Locking with Saturable Absorbers," IEEE J. Sel. Top. Quantum Electron. 2,540-556 (1996).
    [CrossRef]
  12. F.X. Kärtner, J. aus der Au and U. Keller, "Mode-Locking with Slow and Fast Saturable Absorbers - What’s the Difference?," IEEE J. Sel. Top. Quantum Electron. 4,159-168 (1998).
    [CrossRef]
  13. U. Keller, "Recent developments in compact ultrafast lasers," Nature 424,831-838 (2003).
    [CrossRef] [PubMed]
  14. U. Keller, D.A.B. Miller, G.D. Boyd, T.H. Chiu, J.F. Ferguson and M.T. Asom, "Solid-state low-loss intracavity saturable absorber for Nd:YLF lasers: an antiresonant semiconductor Fabry-Perot saturable absorber," Opt. Lett. 17,505-507 (1991).
    [CrossRef]
  15. U. Keller, K.J. Weingarten, F.X. Kärtner, D. Kopf, B. Braun, I.D. Jung, R. Fluck, C. H¨onninger, N. Matuschek and J. aus der Au, "Semiconductor Saturable Absorber Mirrors (SESAM’s) for Femtosecond to Nanosecond Pulse Generation in Solid-State Lasers," IEEE J. Sel. Top. Quantum Electron. 2,435-451 (1996).
    [CrossRef]
  16. D.R. Herriott, H.J. Schulte, "Folded Optical Delay Lines," Appl. Opt. 4,883-889 (1965).
    [CrossRef]
  17. A. Sennaroglu, J.G. Fujimoto, "Design criteria for Herriott-type multi-pass cavities for ultrashort pulse lasers," Opt. Express 11,1106-1113 (2003).
    [CrossRef] [PubMed]
  18. K. Naganuma, G. Lenz and E.P. Ippen, "Variable Bandwidth Birefringent Filter for Tunable Femtosecond Lasers," IEEE J. Quantum Electron. 28,2141-2150 (1992).
    [CrossRef]
  19. D. Türke, W. Wohlleben, J. Teipel, M. Motzkus, B. Kibler, J. Dudley and H. Giessen, "Chirp-controlled soliton fission in tapered optical fibers," Appl. Phys. B 83,37-42 (2006).
    [CrossRef]

2006

2005

2003

J. Teipel, K. Franke, D. Türke, F. Warken, D. Meiser, M. Leuschner and H. Giessen, "Characteristics of supercontinuum generation in tapered fibers using femtosecond laser pulses," Appl. Phys. B 77,245-251 (2003).
[CrossRef]

U. Keller, "Recent developments in compact ultrafast lasers," Nature 424,831-838 (2003).
[CrossRef] [PubMed]

A. Sennaroglu, J.G. Fujimoto, "Design criteria for Herriott-type multi-pass cavities for ultrashort pulse lasers," Opt. Express 11,1106-1113 (2003).
[CrossRef] [PubMed]

2002

D.A. Akimov, A.A. Ivanov, M.V. Alfimov, S.N. Bagayev, T.A. Birks, W.J. Wadsworth, P.St.J. Russell, A.B. Fedotov, V.S. Pivtsov, A.A. Podhivalov and A.M. Zheltikov, "Two-octave spectral broadening of subnanojoule Cr:forsterite femtosecond laser pulses in tapered fibers," Appl. Phys. B 74,307-311 (2002).
[CrossRef]

1998

F.X. Kärtner, J. aus der Au and U. Keller, "Mode-Locking with Slow and Fast Saturable Absorbers - What’s the Difference?," IEEE J. Sel. Top. Quantum Electron. 4,159-168 (1998).
[CrossRef]

C. Hönninger, F. Morier-Genoud, M. Moser and U. Keller, "Efficient and tunable diode-pumped femtosecond Yb:glass lasers," Opt. Lett. 23,126-128 (1998).
[CrossRef]

1996

F.X. Kärtner, I.D. Jung and U. Keller, "Soliton Mode-Locking with Saturable Absorbers," IEEE J. Sel. Top. Quantum Electron. 2,540-556 (1996).
[CrossRef]

U. Keller, K.J. Weingarten, F.X. Kärtner, D. Kopf, B. Braun, I.D. Jung, R. Fluck, C. H¨onninger, N. Matuschek and J. aus der Au, "Semiconductor Saturable Absorber Mirrors (SESAM’s) for Femtosecond to Nanosecond Pulse Generation in Solid-State Lasers," IEEE J. Sel. Top. Quantum Electron. 2,435-451 (1996).
[CrossRef]

1992

K. Naganuma, G. Lenz and E.P. Ippen, "Variable Bandwidth Birefringent Filter for Tunable Femtosecond Lasers," IEEE J. Quantum Electron. 28,2141-2150 (1992).
[CrossRef]

1991

1965

Akimov, D.A.

D.A. Akimov, A.A. Ivanov, M.V. Alfimov, S.N. Bagayev, T.A. Birks, W.J. Wadsworth, P.St.J. Russell, A.B. Fedotov, V.S. Pivtsov, A.A. Podhivalov and A.M. Zheltikov, "Two-octave spectral broadening of subnanojoule Cr:forsterite femtosecond laser pulses in tapered fibers," Appl. Phys. B 74,307-311 (2002).
[CrossRef]

Alfimov, M.V.

D.A. Akimov, A.A. Ivanov, M.V. Alfimov, S.N. Bagayev, T.A. Birks, W.J. Wadsworth, P.St.J. Russell, A.B. Fedotov, V.S. Pivtsov, A.A. Podhivalov and A.M. Zheltikov, "Two-octave spectral broadening of subnanojoule Cr:forsterite femtosecond laser pulses in tapered fibers," Appl. Phys. B 74,307-311 (2002).
[CrossRef]

Asom, M.T.

aus der Au, J.

F.X. Kärtner, J. aus der Au and U. Keller, "Mode-Locking with Slow and Fast Saturable Absorbers - What’s the Difference?," IEEE J. Sel. Top. Quantum Electron. 4,159-168 (1998).
[CrossRef]

Bagayev, S.N.

D.A. Akimov, A.A. Ivanov, M.V. Alfimov, S.N. Bagayev, T.A. Birks, W.J. Wadsworth, P.St.J. Russell, A.B. Fedotov, V.S. Pivtsov, A.A. Podhivalov and A.M. Zheltikov, "Two-octave spectral broadening of subnanojoule Cr:forsterite femtosecond laser pulses in tapered fibers," Appl. Phys. B 74,307-311 (2002).
[CrossRef]

Betz, T.

T. Betz, J. Teipel, D. Koch, W. Härtig, J. Guck, J. K¨as and H. Giessen, "Excitation beyond the monochromatic laser limit: simultaneous 3-D confocal and multiphoton microscopy with a tapered fiber as white-light laser source," J. Biomed. Optics 10,054009 (2005).
[CrossRef]

Biancalana, F.

Birks, T.A.

W.J. Wadsworth, N. Joly, J.C. Knight, T.A. Birks, F. Biancalana and P.St.J. Russell, "Supercontinuum and fourwave mixing with Q-switched pulses in endlessly single-mode photonic crystal fibres," Opt. Express 12,299-309 (2006).
[CrossRef]

D.A. Akimov, A.A. Ivanov, M.V. Alfimov, S.N. Bagayev, T.A. Birks, W.J. Wadsworth, P.St.J. Russell, A.B. Fedotov, V.S. Pivtsov, A.A. Podhivalov and A.M. Zheltikov, "Two-octave spectral broadening of subnanojoule Cr:forsterite femtosecond laser pulses in tapered fibers," Appl. Phys. B 74,307-311 (2002).
[CrossRef]

Boyd, G.D.

Braun, B.

U. Keller, K.J. Weingarten, F.X. Kärtner, D. Kopf, B. Braun, I.D. Jung, R. Fluck, C. H¨onninger, N. Matuschek and J. aus der Au, "Semiconductor Saturable Absorber Mirrors (SESAM’s) for Femtosecond to Nanosecond Pulse Generation in Solid-State Lasers," IEEE J. Sel. Top. Quantum Electron. 2,435-451 (1996).
[CrossRef]

Chiu, T.H.

Dudley, J.

D. Türke, W. Wohlleben, J. Teipel, M. Motzkus, B. Kibler, J. Dudley and H. Giessen, "Chirp-controlled soliton fission in tapered optical fibers," Appl. Phys. B 83,37-42 (2006).
[CrossRef]

Efimov, A.

Fedotov, A.B.

D.A. Akimov, A.A. Ivanov, M.V. Alfimov, S.N. Bagayev, T.A. Birks, W.J. Wadsworth, P.St.J. Russell, A.B. Fedotov, V.S. Pivtsov, A.A. Podhivalov and A.M. Zheltikov, "Two-octave spectral broadening of subnanojoule Cr:forsterite femtosecond laser pulses in tapered fibers," Appl. Phys. B 74,307-311 (2002).
[CrossRef]

Ferguson, J.F.

Fluck, R.

U. Keller, K.J. Weingarten, F.X. Kärtner, D. Kopf, B. Braun, I.D. Jung, R. Fluck, C. H¨onninger, N. Matuschek and J. aus der Au, "Semiconductor Saturable Absorber Mirrors (SESAM’s) for Femtosecond to Nanosecond Pulse Generation in Solid-State Lasers," IEEE J. Sel. Top. Quantum Electron. 2,435-451 (1996).
[CrossRef]

Franke, K.

J. Teipel, K. Franke, D. Türke, F. Warken, D. Meiser, M. Leuschner and H. Giessen, "Characteristics of supercontinuum generation in tapered fibers using femtosecond laser pulses," Appl. Phys. B 77,245-251 (2003).
[CrossRef]

Fujimoto, J.G.

George, A.K.

Giessen, H.

D. Türke, W. Wohlleben, J. Teipel, M. Motzkus, B. Kibler, J. Dudley and H. Giessen, "Chirp-controlled soliton fission in tapered optical fibers," Appl. Phys. B 83,37-42 (2006).
[CrossRef]

J. Teipel, D. Türke, H. Giessen, A. Killi, U. Morgner, M. Lederer, D. Kopf and M. Kolesik, "Diode-pumped, ultrafast, multi-octave supercontinuum source at repetition rates between 500 kHz and 20 MHz using Yb:glass lasers and tapered fibers," Opt. Express 13,1477-1485 (2005).
[CrossRef] [PubMed]

J. Teipel, K. Franke, D. Türke, F. Warken, D. Meiser, M. Leuschner and H. Giessen, "Characteristics of supercontinuum generation in tapered fibers using femtosecond laser pulses," Appl. Phys. B 77,245-251 (2003).
[CrossRef]

Guck, J.

T. Betz, J. Teipel, D. Koch, W. Härtig, J. Guck, J. K¨as and H. Giessen, "Excitation beyond the monochromatic laser limit: simultaneous 3-D confocal and multiphoton microscopy with a tapered fiber as white-light laser source," J. Biomed. Optics 10,054009 (2005).
[CrossRef]

Hamaguchi, H.

Härtig, W.

T. Betz, J. Teipel, D. Koch, W. Härtig, J. Guck, J. K¨as and H. Giessen, "Excitation beyond the monochromatic laser limit: simultaneous 3-D confocal and multiphoton microscopy with a tapered fiber as white-light laser source," J. Biomed. Optics 10,054009 (2005).
[CrossRef]

Herriott, D.R.

Hönninger, C.

Hoos, F.

Ippen, E.P.

K. Naganuma, G. Lenz and E.P. Ippen, "Variable Bandwidth Birefringent Filter for Tunable Femtosecond Lasers," IEEE J. Quantum Electron. 28,2141-2150 (1992).
[CrossRef]

Ivanov, A.A.

D.A. Akimov, A.A. Ivanov, M.V. Alfimov, S.N. Bagayev, T.A. Birks, W.J. Wadsworth, P.St.J. Russell, A.B. Fedotov, V.S. Pivtsov, A.A. Podhivalov and A.M. Zheltikov, "Two-octave spectral broadening of subnanojoule Cr:forsterite femtosecond laser pulses in tapered fibers," Appl. Phys. B 74,307-311 (2002).
[CrossRef]

Joly, N.

Joly, N.Y.

Jung, I.D.

U. Keller, K.J. Weingarten, F.X. Kärtner, D. Kopf, B. Braun, I.D. Jung, R. Fluck, C. H¨onninger, N. Matuschek and J. aus der Au, "Semiconductor Saturable Absorber Mirrors (SESAM’s) for Femtosecond to Nanosecond Pulse Generation in Solid-State Lasers," IEEE J. Sel. Top. Quantum Electron. 2,435-451 (1996).
[CrossRef]

F.X. Kärtner, I.D. Jung and U. Keller, "Soliton Mode-Locking with Saturable Absorbers," IEEE J. Sel. Top. Quantum Electron. 2,540-556 (1996).
[CrossRef]

Kano, H.

Karnutsch, C.

Kärtner, F.X.

F.X. Kärtner, J. aus der Au and U. Keller, "Mode-Locking with Slow and Fast Saturable Absorbers - What’s the Difference?," IEEE J. Sel. Top. Quantum Electron. 4,159-168 (1998).
[CrossRef]

U. Keller, K.J. Weingarten, F.X. Kärtner, D. Kopf, B. Braun, I.D. Jung, R. Fluck, C. H¨onninger, N. Matuschek and J. aus der Au, "Semiconductor Saturable Absorber Mirrors (SESAM’s) for Femtosecond to Nanosecond Pulse Generation in Solid-State Lasers," IEEE J. Sel. Top. Quantum Electron. 2,435-451 (1996).
[CrossRef]

F.X. Kärtner, I.D. Jung and U. Keller, "Soliton Mode-Locking with Saturable Absorbers," IEEE J. Sel. Top. Quantum Electron. 2,540-556 (1996).
[CrossRef]

Keller, U.

U. Keller, "Recent developments in compact ultrafast lasers," Nature 424,831-838 (2003).
[CrossRef] [PubMed]

F.X. Kärtner, J. aus der Au and U. Keller, "Mode-Locking with Slow and Fast Saturable Absorbers - What’s the Difference?," IEEE J. Sel. Top. Quantum Electron. 4,159-168 (1998).
[CrossRef]

C. Hönninger, F. Morier-Genoud, M. Moser and U. Keller, "Efficient and tunable diode-pumped femtosecond Yb:glass lasers," Opt. Lett. 23,126-128 (1998).
[CrossRef]

U. Keller, K.J. Weingarten, F.X. Kärtner, D. Kopf, B. Braun, I.D. Jung, R. Fluck, C. H¨onninger, N. Matuschek and J. aus der Au, "Semiconductor Saturable Absorber Mirrors (SESAM’s) for Femtosecond to Nanosecond Pulse Generation in Solid-State Lasers," IEEE J. Sel. Top. Quantum Electron. 2,435-451 (1996).
[CrossRef]

F.X. Kärtner, I.D. Jung and U. Keller, "Soliton Mode-Locking with Saturable Absorbers," IEEE J. Sel. Top. Quantum Electron. 2,540-556 (1996).
[CrossRef]

U. Keller, D.A.B. Miller, G.D. Boyd, T.H. Chiu, J.F. Ferguson and M.T. Asom, "Solid-state low-loss intracavity saturable absorber for Nd:YLF lasers: an antiresonant semiconductor Fabry-Perot saturable absorber," Opt. Lett. 17,505-507 (1991).
[CrossRef]

Kibler, B.

D. Türke, W. Wohlleben, J. Teipel, M. Motzkus, B. Kibler, J. Dudley and H. Giessen, "Chirp-controlled soliton fission in tapered optical fibers," Appl. Phys. B 83,37-42 (2006).
[CrossRef]

Killi, A.

Knight, J.C.

Koch, D.

T. Betz, J. Teipel, D. Koch, W. Härtig, J. Guck, J. K¨as and H. Giessen, "Excitation beyond the monochromatic laser limit: simultaneous 3-D confocal and multiphoton microscopy with a tapered fiber as white-light laser source," J. Biomed. Optics 10,054009 (2005).
[CrossRef]

Kolesik, M.

Kopf, D.

J. Teipel, D. Türke, H. Giessen, A. Killi, U. Morgner, M. Lederer, D. Kopf and M. Kolesik, "Diode-pumped, ultrafast, multi-octave supercontinuum source at repetition rates between 500 kHz and 20 MHz using Yb:glass lasers and tapered fibers," Opt. Express 13,1477-1485 (2005).
[CrossRef] [PubMed]

A. Killi, U. Morgner, M.J. Lederer and D. Kopf,"Diode-pumped femtosecond laser oscillator with cavity dumping," Opt. Lett. 29,1288-1290 (2005).
[CrossRef]

U. Keller, K.J. Weingarten, F.X. Kärtner, D. Kopf, B. Braun, I.D. Jung, R. Fluck, C. H¨onninger, N. Matuschek and J. aus der Au, "Semiconductor Saturable Absorber Mirrors (SESAM’s) for Femtosecond to Nanosecond Pulse Generation in Solid-State Lasers," IEEE J. Sel. Top. Quantum Electron. 2,435-451 (1996).
[CrossRef]

Kumar, V.V.R.K.

Lederer, M.

Lederer, M.J.

Lemmer, U.

Lenz, G.

K. Naganuma, G. Lenz and E.P. Ippen, "Variable Bandwidth Birefringent Filter for Tunable Femtosecond Lasers," IEEE J. Quantum Electron. 28,2141-2150 (1992).
[CrossRef]

Leuschner, M.

J. Teipel, K. Franke, D. Türke, F. Warken, D. Meiser, M. Leuschner and H. Giessen, "Characteristics of supercontinuum generation in tapered fibers using femtosecond laser pulses," Appl. Phys. B 77,245-251 (2003).
[CrossRef]

Linder, N.

Meiser, D.

J. Teipel, K. Franke, D. Türke, F. Warken, D. Meiser, M. Leuschner and H. Giessen, "Characteristics of supercontinuum generation in tapered fibers using femtosecond laser pulses," Appl. Phys. B 77,245-251 (2003).
[CrossRef]

Miller, D.A.B.

Morgner, U.

Morier-Genoud, F.

Moser, M.

Motzkus, M.

D. Türke, W. Wohlleben, J. Teipel, M. Motzkus, B. Kibler, J. Dudley and H. Giessen, "Chirp-controlled soliton fission in tapered optical fibers," Appl. Phys. B 83,37-42 (2006).
[CrossRef]

Naganuma, K.

K. Naganuma, G. Lenz and E.P. Ippen, "Variable Bandwidth Birefringent Filter for Tunable Femtosecond Lasers," IEEE J. Quantum Electron. 28,2141-2150 (1992).
[CrossRef]

Omenetto, F.G.

Pivtsov, V.S.

D.A. Akimov, A.A. Ivanov, M.V. Alfimov, S.N. Bagayev, T.A. Birks, W.J. Wadsworth, P.St.J. Russell, A.B. Fedotov, V.S. Pivtsov, A.A. Podhivalov and A.M. Zheltikov, "Two-octave spectral broadening of subnanojoule Cr:forsterite femtosecond laser pulses in tapered fibers," Appl. Phys. B 74,307-311 (2002).
[CrossRef]

Podhivalov, A.A.

D.A. Akimov, A.A. Ivanov, M.V. Alfimov, S.N. Bagayev, T.A. Birks, W.J. Wadsworth, P.St.J. Russell, A.B. Fedotov, V.S. Pivtsov, A.A. Podhivalov and A.M. Zheltikov, "Two-octave spectral broadening of subnanojoule Cr:forsterite femtosecond laser pulses in tapered fibers," Appl. Phys. B 74,307-311 (2002).
[CrossRef]

Punke, M.

Ross, M.

Russell, P.St.J.

W.J. Wadsworth, N. Joly, J.C. Knight, T.A. Birks, F. Biancalana and P.St.J. Russell, "Supercontinuum and fourwave mixing with Q-switched pulses in endlessly single-mode photonic crystal fibres," Opt. Express 12,299-309 (2006).
[CrossRef]

D.A. Akimov, A.A. Ivanov, M.V. Alfimov, S.N. Bagayev, T.A. Birks, W.J. Wadsworth, P.St.J. Russell, A.B. Fedotov, V.S. Pivtsov, A.A. Podhivalov and A.M. Zheltikov, "Two-octave spectral broadening of subnanojoule Cr:forsterite femtosecond laser pulses in tapered fibers," Appl. Phys. B 74,307-311 (2002).
[CrossRef]

Schulte, H.J.

Sennaroglu, A.

St. Russell, P.

Streubel, K.

Taylor, A.J.

Teipel, J.

D. Türke, W. Wohlleben, J. Teipel, M. Motzkus, B. Kibler, J. Dudley and H. Giessen, "Chirp-controlled soliton fission in tapered optical fibers," Appl. Phys. B 83,37-42 (2006).
[CrossRef]

T. Betz, J. Teipel, D. Koch, W. Härtig, J. Guck, J. K¨as and H. Giessen, "Excitation beyond the monochromatic laser limit: simultaneous 3-D confocal and multiphoton microscopy with a tapered fiber as white-light laser source," J. Biomed. Optics 10,054009 (2005).
[CrossRef]

J. Teipel, D. Türke, H. Giessen, A. Killi, U. Morgner, M. Lederer, D. Kopf and M. Kolesik, "Diode-pumped, ultrafast, multi-octave supercontinuum source at repetition rates between 500 kHz and 20 MHz using Yb:glass lasers and tapered fibers," Opt. Express 13,1477-1485 (2005).
[CrossRef] [PubMed]

J. Teipel, K. Franke, D. Türke, F. Warken, D. Meiser, M. Leuschner and H. Giessen, "Characteristics of supercontinuum generation in tapered fibers using femtosecond laser pulses," Appl. Phys. B 77,245-251 (2003).
[CrossRef]

Türke, D.

D. Türke, W. Wohlleben, J. Teipel, M. Motzkus, B. Kibler, J. Dudley and H. Giessen, "Chirp-controlled soliton fission in tapered optical fibers," Appl. Phys. B 83,37-42 (2006).
[CrossRef]

J. Teipel, D. Türke, H. Giessen, A. Killi, U. Morgner, M. Lederer, D. Kopf and M. Kolesik, "Diode-pumped, ultrafast, multi-octave supercontinuum source at repetition rates between 500 kHz and 20 MHz using Yb:glass lasers and tapered fibers," Opt. Express 13,1477-1485 (2005).
[CrossRef] [PubMed]

J. Teipel, K. Franke, D. Türke, F. Warken, D. Meiser, M. Leuschner and H. Giessen, "Characteristics of supercontinuum generation in tapered fibers using femtosecond laser pulses," Appl. Phys. B 77,245-251 (2003).
[CrossRef]

Wadsworth, W.J.

W.J. Wadsworth, N. Joly, J.C. Knight, T.A. Birks, F. Biancalana and P.St.J. Russell, "Supercontinuum and fourwave mixing with Q-switched pulses in endlessly single-mode photonic crystal fibres," Opt. Express 12,299-309 (2006).
[CrossRef]

D.A. Akimov, A.A. Ivanov, M.V. Alfimov, S.N. Bagayev, T.A. Birks, W.J. Wadsworth, P.St.J. Russell, A.B. Fedotov, V.S. Pivtsov, A.A. Podhivalov and A.M. Zheltikov, "Two-octave spectral broadening of subnanojoule Cr:forsterite femtosecond laser pulses in tapered fibers," Appl. Phys. B 74,307-311 (2002).
[CrossRef]

Warken, F.

J. Teipel, K. Franke, D. Türke, F. Warken, D. Meiser, M. Leuschner and H. Giessen, "Characteristics of supercontinuum generation in tapered fibers using femtosecond laser pulses," Appl. Phys. B 77,245-251 (2003).
[CrossRef]

Wehner, M.R.

Weingarten, K.J.

U. Keller, K.J. Weingarten, F.X. Kärtner, D. Kopf, B. Braun, I.D. Jung, R. Fluck, C. H¨onninger, N. Matuschek and J. aus der Au, "Semiconductor Saturable Absorber Mirrors (SESAM’s) for Femtosecond to Nanosecond Pulse Generation in Solid-State Lasers," IEEE J. Sel. Top. Quantum Electron. 2,435-451 (1996).
[CrossRef]

Wohlleben, W.

D. Türke, W. Wohlleben, J. Teipel, M. Motzkus, B. Kibler, J. Dudley and H. Giessen, "Chirp-controlled soliton fission in tapered optical fibers," Appl. Phys. B 83,37-42 (2006).
[CrossRef]

Wolchover, N.A.

Zheltikov, A.M.

D.A. Akimov, A.A. Ivanov, M.V. Alfimov, S.N. Bagayev, T.A. Birks, W.J. Wadsworth, P.St.J. Russell, A.B. Fedotov, V.S. Pivtsov, A.A. Podhivalov and A.M. Zheltikov, "Two-octave spectral broadening of subnanojoule Cr:forsterite femtosecond laser pulses in tapered fibers," Appl. Phys. B 74,307-311 (2002).
[CrossRef]

Appl. Opt.

Appl. Phys. B

D.A. Akimov, A.A. Ivanov, M.V. Alfimov, S.N. Bagayev, T.A. Birks, W.J. Wadsworth, P.St.J. Russell, A.B. Fedotov, V.S. Pivtsov, A.A. Podhivalov and A.M. Zheltikov, "Two-octave spectral broadening of subnanojoule Cr:forsterite femtosecond laser pulses in tapered fibers," Appl. Phys. B 74,307-311 (2002).
[CrossRef]

J. Teipel, K. Franke, D. Türke, F. Warken, D. Meiser, M. Leuschner and H. Giessen, "Characteristics of supercontinuum generation in tapered fibers using femtosecond laser pulses," Appl. Phys. B 77,245-251 (2003).
[CrossRef]

D. Türke, W. Wohlleben, J. Teipel, M. Motzkus, B. Kibler, J. Dudley and H. Giessen, "Chirp-controlled soliton fission in tapered optical fibers," Appl. Phys. B 83,37-42 (2006).
[CrossRef]

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[CrossRef]

IEEE J. Sel. Top. Quantum Electron.

U. Keller, K.J. Weingarten, F.X. Kärtner, D. Kopf, B. Braun, I.D. Jung, R. Fluck, C. H¨onninger, N. Matuschek and J. aus der Au, "Semiconductor Saturable Absorber Mirrors (SESAM’s) for Femtosecond to Nanosecond Pulse Generation in Solid-State Lasers," IEEE J. Sel. Top. Quantum Electron. 2,435-451 (1996).
[CrossRef]

F.X. Kärtner, I.D. Jung and U. Keller, "Soliton Mode-Locking with Saturable Absorbers," IEEE J. Sel. Top. Quantum Electron. 2,540-556 (1996).
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F.X. Kärtner, J. aus der Au and U. Keller, "Mode-Locking with Slow and Fast Saturable Absorbers - What’s the Difference?," IEEE J. Sel. Top. Quantum Electron. 4,159-168 (1998).
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T. Betz, J. Teipel, D. Koch, W. Härtig, J. Guck, J. K¨as and H. Giessen, "Excitation beyond the monochromatic laser limit: simultaneous 3-D confocal and multiphoton microscopy with a tapered fiber as white-light laser source," J. Biomed. Optics 10,054009 (2005).
[CrossRef]

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U. Keller, "Recent developments in compact ultrafast lasers," Nature 424,831-838 (2003).
[CrossRef] [PubMed]

Opt. Express

Opt. Lett.

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Figures (5)

Fig. 1.
Fig. 1.

Scheme of the Yb:glass laser with a Herriott-type multi-pass cell: LD pump laser diode; L1, L2 achromatic lenses; M1, M4, M5, M6, M7, M9 curved mirrors; M3,M10 dichroic flat mirrors; M2,M8 dispersive flat mirrors; OC 5% output coupler; BiFi birefringent filter. The beam path inside the Herriott-cell is only indicated for clarity. In fact the beam bounces nine times on each of the two mirrors M4 and M5.

Fig. 2.
Fig. 2.

Laser outpout power for laser operation in the cw-regime and for pulses with a length of 150 fs, repectively. Mode-locking sets in at a pump power of approximately 4.5 W.

Fig. 3.
Fig. 3.

(a) Autocorrelation trace for the laser configuration that supports 150 fs pulses. The full-width half-maximum of the autocorrelation trace is determined to 227 fs corresponding to a pulse width of 147 fs if one assumes a perfectly sech2-shaped pulse. The inset shows a trace of an interferometric autocorrelation. (b) Optical spectrum of the laser output.

Fig. 4.
Fig. 4.

Supercontinua obtained from three different tapered fibers without pulse pre-chirp in dependence on the supercontinuum output power. (a) Broad spectrum with 290 mW average power obtained from a fiber with 2.7 μm waist diameter. (b) Smoother spectrum with 400 mW average power obtained from a thicker fiber with 4.3 μm waist diameter. (c) Spectrum with a significant fraction in the blue to near-ultraviolet region at a total average power of 320 mW obtained with a waist diameter of 2.0 μm.

Fig. 5.
Fig. 5.

Supercontinua in dependence on the pulse pre-chirp. The broadest spectra are plotted in red. (a) Spectra for a fiber with 2.0 μm waist diameter. The average output power was held constant at 280 mW. (b) Spectra for a thicker fiber with 4.3 μm waist diameter at 325 mW output power.

Equations (1)

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L = R ( 1 ± 1 1 cos ( m n π ) 2 )

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