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Applied Optics

Applied Optics


  • Vol. 40, Iss. 30 — Oct. 20, 2001
  • pp: 5402–5412

Fizeau wedge with unequal mirrors for spectral control and coupling in a linear laser oscillator–amplifier system

Elena V. Stoykova and Marin N. Nenchev  »View Author Affiliations

Applied Optics, Vol. 40, Issue 30, pp. 5402-5412 (2001)

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We propose a new tunable linear laser oscillator–amplifier system that incorporates a Fizeau wedge with unequal mirrors as the coupler. Because of asymmetry in reflection and wedge focusing in unequal mirrors, our system acts as a highly efficient selector in the oscillator and practically eliminates reinjection of spontaneous emission in the amplifier. We studied the wedge action by developing a procedure for the calculation of reflected interference patterns at a distance from the wedge. Using this procedure we found the feedback factors for both the oscillator and the amplifier. Background emission levels of less than 1% of the peak intensity in the emitted line were experimentally obtained.

© 2001 Optical Society of America

OCIS Codes
(100.2650) Image processing : Fringe analysis
(140.3280) Lasers and laser optics : Laser amplifiers
(140.4780) Lasers and laser optics : Optical resonators
(260.3160) Physical optics : Interference

Original Manuscript: June 23, 2000
Revised Manuscript: February 5, 2001
Published: October 20, 2001

Elena V. Stoykova and Marin N. Nenchev, "Fizeau wedge with unequal mirrors for spectral control and coupling in a linear laser oscillator–amplifier system," Appl. Opt. 40, 5402-5412 (2001)

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