Abstract

We report on an injection-seeded Ti:sapphire laser pumped by the second harmonic of a Nd:YAG laser. The resonance between the low-power seed laser and the slave cavity is achieved by a ramp-hold-fire technique. Because of the triangular cavity design, the spatial beam profile is excellent; and combined with the narrow-linewidth pulses, the conversion efficiencies for nonlinear frequency generation are excellent.

© 2001 Optical Society of America

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References

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  1. R. L. Schmitt, R. A. Rahn, “Diode-laser-pumped Nd:YAG laser injection seeding system,” Appl. Opt. 25, 629–633 (1986).
    [CrossRef] [PubMed]
  2. S. W. Hendersen, E. H. Yuen, E. S. Fry, “Fast resonance-detection technique for single-frequency operation of injection-seeded Nd:YAG lasers,” Opt. Lett. 11, 715–717 (1986).
    [CrossRef]
  3. V. Wulfmeyer, J. Bösenberg, “Single-mode operation of an injection-seeded alexandrite ring laser for application in water-vapor and temperature differential absorption lidar,” Opt. Lett. 21, 1150–1152 (1996).
    [CrossRef] [PubMed]
  4. E. S. Fry, Q. Hu, X. Li, “Single frequency operation of an injection-seeded Nd:YAG laser in high noise and vibration environments,” Appl. Opt. 30, 1015–1017 (1991).
    [CrossRef] [PubMed]
  5. A. Kasapi, G. Y. Yin, M. Jain, “Pulsed Ti:sapphire laser seeded off the gain peak,” Appl. Opt. 35, 1999–2004 (1996).
    [CrossRef] [PubMed]
  6. M. P. Larsen, E. Thomas, Th. Walther, E. S. Fry, “Injection seeding of a Ti:sapphire laser using a ramp-hold-fire technique,” in Conference on Lasers and Electro-Optics, Vol. 11 of 1997 OSA Technical Digest Series (Optical Society of America, Washington, D.C., 1997), pp. 362–363.
  7. M. P. Larsen, “Injection seeding of a Ti:sapphire laser using a ramp-hold-fire technique,” M.S. thesis (Texas A&M University, College Station, Tex., 1997).
  8. C. Tian, Th. Walther, R. Nicolaescu, X. J. Pan, Y. Liao, E. S. Fry, “Synchronous, dual-wavelength, injection-seeded amplification of 5-ns pulses in a flash-lamp-pumped Ti:sapphire laser,” Opt. Lett. 24, 1496–1498 (1999).
    [CrossRef]
  9. D. J. Bradley, “Methods of generation,” in Ultrashort Light Pulses, S. L. Shapiro, ed., Vol. 18 of Topics of Applied Physics (Springer-Verlag, Heidelberg, 1977), Chap. 2.
    [CrossRef]
  10. SNLO nonlinear optics code available from A. V. Smith, Sandia National Laboratories, Albuquerque, N.M. 87185-1423 through http://www.sandia.gov/imrl/XWEB1128/xxtal.htm .
  11. R. Nicolaescu, Th. Walther, E. S. Fry, “Linewidth narrowing of a pulsed alexandrite laser by intracavity phase modulation,” in Conference on Lasers and Electro-Optics, Vol. 6 of 1998 OSA Technical Digest Series (Optical Society of America, Washington, D.C., 1998), pp. 179–180.

1999 (1)

1996 (2)

1991 (1)

1986 (2)

Bösenberg, J.

Bradley, D. J.

D. J. Bradley, “Methods of generation,” in Ultrashort Light Pulses, S. L. Shapiro, ed., Vol. 18 of Topics of Applied Physics (Springer-Verlag, Heidelberg, 1977), Chap. 2.
[CrossRef]

Fry, E. S.

C. Tian, Th. Walther, R. Nicolaescu, X. J. Pan, Y. Liao, E. S. Fry, “Synchronous, dual-wavelength, injection-seeded amplification of 5-ns pulses in a flash-lamp-pumped Ti:sapphire laser,” Opt. Lett. 24, 1496–1498 (1999).
[CrossRef]

E. S. Fry, Q. Hu, X. Li, “Single frequency operation of an injection-seeded Nd:YAG laser in high noise and vibration environments,” Appl. Opt. 30, 1015–1017 (1991).
[CrossRef] [PubMed]

S. W. Hendersen, E. H. Yuen, E. S. Fry, “Fast resonance-detection technique for single-frequency operation of injection-seeded Nd:YAG lasers,” Opt. Lett. 11, 715–717 (1986).
[CrossRef]

M. P. Larsen, E. Thomas, Th. Walther, E. S. Fry, “Injection seeding of a Ti:sapphire laser using a ramp-hold-fire technique,” in Conference on Lasers and Electro-Optics, Vol. 11 of 1997 OSA Technical Digest Series (Optical Society of America, Washington, D.C., 1997), pp. 362–363.

R. Nicolaescu, Th. Walther, E. S. Fry, “Linewidth narrowing of a pulsed alexandrite laser by intracavity phase modulation,” in Conference on Lasers and Electro-Optics, Vol. 6 of 1998 OSA Technical Digest Series (Optical Society of America, Washington, D.C., 1998), pp. 179–180.

Hendersen, S. W.

Hu, Q.

Jain, M.

Kasapi, A.

Larsen, M. P.

M. P. Larsen, E. Thomas, Th. Walther, E. S. Fry, “Injection seeding of a Ti:sapphire laser using a ramp-hold-fire technique,” in Conference on Lasers and Electro-Optics, Vol. 11 of 1997 OSA Technical Digest Series (Optical Society of America, Washington, D.C., 1997), pp. 362–363.

M. P. Larsen, “Injection seeding of a Ti:sapphire laser using a ramp-hold-fire technique,” M.S. thesis (Texas A&M University, College Station, Tex., 1997).

Li, X.

Liao, Y.

Nicolaescu, R.

C. Tian, Th. Walther, R. Nicolaescu, X. J. Pan, Y. Liao, E. S. Fry, “Synchronous, dual-wavelength, injection-seeded amplification of 5-ns pulses in a flash-lamp-pumped Ti:sapphire laser,” Opt. Lett. 24, 1496–1498 (1999).
[CrossRef]

R. Nicolaescu, Th. Walther, E. S. Fry, “Linewidth narrowing of a pulsed alexandrite laser by intracavity phase modulation,” in Conference on Lasers and Electro-Optics, Vol. 6 of 1998 OSA Technical Digest Series (Optical Society of America, Washington, D.C., 1998), pp. 179–180.

Pan, X. J.

Rahn, R. A.

Schmitt, R. L.

Thomas, E.

M. P. Larsen, E. Thomas, Th. Walther, E. S. Fry, “Injection seeding of a Ti:sapphire laser using a ramp-hold-fire technique,” in Conference on Lasers and Electro-Optics, Vol. 11 of 1997 OSA Technical Digest Series (Optical Society of America, Washington, D.C., 1997), pp. 362–363.

Tian, C.

Walther, Th.

C. Tian, Th. Walther, R. Nicolaescu, X. J. Pan, Y. Liao, E. S. Fry, “Synchronous, dual-wavelength, injection-seeded amplification of 5-ns pulses in a flash-lamp-pumped Ti:sapphire laser,” Opt. Lett. 24, 1496–1498 (1999).
[CrossRef]

R. Nicolaescu, Th. Walther, E. S. Fry, “Linewidth narrowing of a pulsed alexandrite laser by intracavity phase modulation,” in Conference on Lasers and Electro-Optics, Vol. 6 of 1998 OSA Technical Digest Series (Optical Society of America, Washington, D.C., 1998), pp. 179–180.

M. P. Larsen, E. Thomas, Th. Walther, E. S. Fry, “Injection seeding of a Ti:sapphire laser using a ramp-hold-fire technique,” in Conference on Lasers and Electro-Optics, Vol. 11 of 1997 OSA Technical Digest Series (Optical Society of America, Washington, D.C., 1997), pp. 362–363.

Wulfmeyer, V.

Yin, G. Y.

Yuen, E. H.

Appl. Opt. (3)

Opt. Lett. (3)

Other (5)

D. J. Bradley, “Methods of generation,” in Ultrashort Light Pulses, S. L. Shapiro, ed., Vol. 18 of Topics of Applied Physics (Springer-Verlag, Heidelberg, 1977), Chap. 2.
[CrossRef]

SNLO nonlinear optics code available from A. V. Smith, Sandia National Laboratories, Albuquerque, N.M. 87185-1423 through http://www.sandia.gov/imrl/XWEB1128/xxtal.htm .

R. Nicolaescu, Th. Walther, E. S. Fry, “Linewidth narrowing of a pulsed alexandrite laser by intracavity phase modulation,” in Conference on Lasers and Electro-Optics, Vol. 6 of 1998 OSA Technical Digest Series (Optical Society of America, Washington, D.C., 1998), pp. 179–180.

M. P. Larsen, E. Thomas, Th. Walther, E. S. Fry, “Injection seeding of a Ti:sapphire laser using a ramp-hold-fire technique,” in Conference on Lasers and Electro-Optics, Vol. 11 of 1997 OSA Technical Digest Series (Optical Society of America, Washington, D.C., 1997), pp. 362–363.

M. P. Larsen, “Injection seeding of a Ti:sapphire laser using a ramp-hold-fire technique,” M.S. thesis (Texas A&M University, College Station, Tex., 1997).

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Figures (7)

Fig. 1
Fig. 1

Experimental setup of the cavity. Lasing occurs only in the counterclockwise direction because the seed laser is propagating only in this direction. HR, high reflector.

Fig. 2
Fig. 2

Setup of the THG. See text for details.

Fig. 3
Fig. 3

Piezovoltage and interference signal of the seed diode laser as monitored by the photodiode. Graphs show the signals when the latch signal on the piezoramp is (top) disabled, (bottom) enabled.

Fig. 4
Fig. 4

Output energy of the Ti:sapphire laser as a function of pump energy incident on the crystal.

Fig. 5
Fig. 5

Pulse buildup time and temporal shape of the seeded Ti:sapphire laser.

Fig. 6
Fig. 6

Linewidth measurement of the seeded Ti:sapphire laser with a slowly scanned Fabry–Perot etalon with a free spectral range of 150 MHz; there are ≈25 successive laser shots in each peak.

Fig. 7
Fig. 7

Output energy of the nonlinear processes as a function of the energy at the fundamental.

Equations (1)

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Δν=2 ln 2/πΔτ.

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