Abstract

Using a special cell design for low dye concentrations that limits the thickness of the transversely pumped dye solution by an exit window for the pump beam (1) sharp longitudinal modes with steep spectral line shapes develop because of the low small signal gain, and (2) the beam profile follows a Gaussian over 3 decades because both pump windows act as a mode selective aperture. The rest of the pump beam excites a second dye solution, separated from the first by a 1-cm thick window, so that a variety of different ring designs can easily be tested. The tendency of the linear resonator to form a double peaked output cross section was not observed with the running wave.

© 1983 Optical Society of America

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References

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  1. J. Hildebrandt, presented at the Annual Meeting of the German Physical Society 1978 in Munich [Verh. Dtsch. Phys. Ges. (6) 13, 662 (1978)].
  2. U. Rebhan, J. Hildebrandt, Opt. Commun. 31, 69 (1979).
    [CrossRef]
  3. J. Hildebrandt, H.-J. Kunze, Phys. Rev. Lett. 45, 183 (1980).
    [CrossRef]
  4. U. Rebhan, J. Hildebrandt, G. Skopp, Appl. Phys. 23, 341 (1980).
    [CrossRef]
  5. J. Hildebrandt, submitted to J. Phys. E(1983) (manuscript available on request).
  6. I. Shoshan, U. P. Oppenheim, Opt. Commun. 25, 375 (1978).
    [CrossRef]
  7. J. Hildebrandt, J. Phys. B 16, 149 (1983).
    [CrossRef]
  8. J. W. Daily, Appl. Opt. 17, 225 (1978).
    [CrossRef] [PubMed]
  9. U. Rebhan, Thesis, Ruhr-Universität Bochum(1982).

1983

J. Hildebrandt, J. Phys. B 16, 149 (1983).
[CrossRef]

1980

J. Hildebrandt, H.-J. Kunze, Phys. Rev. Lett. 45, 183 (1980).
[CrossRef]

U. Rebhan, J. Hildebrandt, G. Skopp, Appl. Phys. 23, 341 (1980).
[CrossRef]

1979

U. Rebhan, J. Hildebrandt, Opt. Commun. 31, 69 (1979).
[CrossRef]

1978

J. Hildebrandt, presented at the Annual Meeting of the German Physical Society 1978 in Munich [Verh. Dtsch. Phys. Ges. (6) 13, 662 (1978)].

I. Shoshan, U. P. Oppenheim, Opt. Commun. 25, 375 (1978).
[CrossRef]

J. W. Daily, Appl. Opt. 17, 225 (1978).
[CrossRef] [PubMed]

Daily, J. W.

Hildebrandt, J.

J. Hildebrandt, J. Phys. B 16, 149 (1983).
[CrossRef]

J. Hildebrandt, H.-J. Kunze, Phys. Rev. Lett. 45, 183 (1980).
[CrossRef]

U. Rebhan, J. Hildebrandt, G. Skopp, Appl. Phys. 23, 341 (1980).
[CrossRef]

U. Rebhan, J. Hildebrandt, Opt. Commun. 31, 69 (1979).
[CrossRef]

J. Hildebrandt, presented at the Annual Meeting of the German Physical Society 1978 in Munich [Verh. Dtsch. Phys. Ges. (6) 13, 662 (1978)].

J. Hildebrandt, submitted to J. Phys. E(1983) (manuscript available on request).

Kunze, H.-J.

J. Hildebrandt, H.-J. Kunze, Phys. Rev. Lett. 45, 183 (1980).
[CrossRef]

Oppenheim, U. P.

I. Shoshan, U. P. Oppenheim, Opt. Commun. 25, 375 (1978).
[CrossRef]

Rebhan, U.

U. Rebhan, J. Hildebrandt, G. Skopp, Appl. Phys. 23, 341 (1980).
[CrossRef]

U. Rebhan, J. Hildebrandt, Opt. Commun. 31, 69 (1979).
[CrossRef]

U. Rebhan, Thesis, Ruhr-Universität Bochum(1982).

Shoshan, I.

I. Shoshan, U. P. Oppenheim, Opt. Commun. 25, 375 (1978).
[CrossRef]

Skopp, G.

U. Rebhan, J. Hildebrandt, G. Skopp, Appl. Phys. 23, 341 (1980).
[CrossRef]

Appl. Opt.

Appl. Phys.

U. Rebhan, J. Hildebrandt, G. Skopp, Appl. Phys. 23, 341 (1980).
[CrossRef]

J. Phys. B

J. Hildebrandt, J. Phys. B 16, 149 (1983).
[CrossRef]

Opt. Commun.

I. Shoshan, U. P. Oppenheim, Opt. Commun. 25, 375 (1978).
[CrossRef]

U. Rebhan, J. Hildebrandt, Opt. Commun. 31, 69 (1979).
[CrossRef]

Phys. Rev. Lett.

J. Hildebrandt, H.-J. Kunze, Phys. Rev. Lett. 45, 183 (1980).
[CrossRef]

Verh. Dtsch. Phys. Ges.

J. Hildebrandt, presented at the Annual Meeting of the German Physical Society 1978 in Munich [Verh. Dtsch. Phys. Ges. (6) 13, 662 (1978)].

Other

U. Rebhan, Thesis, Ruhr-Universität Bochum(1982).

J. Hildebrandt, submitted to J. Phys. E(1983) (manuscript available on request).

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Figures (4)

Fig. 1
Fig. 1

Saturation characteristic (atomic fluorescence vs laser power) of resonance with the 447-nm HeI line. An imaging lens proved to be necessary between the continuous neutral density filter and the plasma source, because the wedge angle was not constant. Further technical details in Refs. 3 and 7.

Fig. 2
Fig. 2

Ring resonator with combined grating and prism expanders (outcoupling via the grating expander EOG): TG, tuning grating, blaze 75°, line density 79 mm−1; EOG, blaze 63°, 316 mm−1, angle of incidence 88° (expansion ratio M = 21); EP, expanding prisms (1 and 2, crown, 60°, M = 2.7; 3, BK7, 45°, M = 2.9), angle of incidence 75°; L1,2, spherical lenses (f1 = −150 mm, f2 = +200 mm); PR, polarization rotator (90°) or λ/2 plate; IF, interference filter; RTP, rooftop prism. Dye concentration, front solution 2.2 × 10−4 mol/liter; rear solution 4 × 10−4 mol/liter; both stilbene 3 in water. Flow rate 0.2/0.1 cm3/sec. Dye Cell, metal parts blackened brass, seals Viton O-rings, spacers between the pump windows Mylar foil (four small pieces). Output (CCW), 1 kW into ∼10 longitudinal modes (spacing 0.4 GHz).

Fig. 3
Fig. 3

Standard design with prism expansion [angle of incidence 75° (MCW = 25, MCCW = 17)]: OM, 4% outcoupling flat; BM, aluminum mirror; BP, bending prism (18°); EPs, 30°, crown.

Fig. 4
Fig. 4

Compact Ring: ETP, expanding and tuning prism (88° inc.) M = 21; EOG, expanding and outcoupling grating (87°), M = 14.

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