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• 1. [Article] Output Properties of Short-Pulse Gain-Switched Lasers

  A formalism is derived for analyzing the spectral and temporal properties of gain-switched lasers. The development of the longitudinal mode structure from spontaneous emission, limiting linewidths, and ...

  Citation × Citation Citation Abstract Copy Title: Output Properties of Short-Pulse Gain-Switched Lasers Author: Casperson, Lee W. Year: 1974 A formalism is derived for analyzing the spectral and temporal properties of gain-switched lasers. The development of the longitudinal mode structure from spontaneous emission, limiting linewidths, and over-all spectral characteristics are considered in detail; and applications are discussed. Title: Output Properties of Short-Pulse Gain-Switched Lasers Author: Casperson, Lee W. Year: 1974 A formalism is derived for analyzing the spectral and temporal properties of gain-switched lasers. The development of the longitudinal mode structure from spontaneous emission, limiting linewidths, and over-all spectral characteristics are considered in detail; and applications are discussed. Close

• 2. [Article] Pulse evolution in CO₂ lasers

  Explicit formulas are examined for the development of optical pulses in gain‐switched or Q‐switched laser oscillators and for the distortion of such pulses in succeeding stages of laser amplification. ...

  Citation × Citation Citation Abstract Copy Title: Pulse evolution in CO₂ lasers Author: Casperson, Lee W., Herbst, M. J., Turechek, John J. Year: 1976 Explicit formulas are examined for the development of optical pulses in gain‐switched or Q‐switched laser oscillators and for the distortion of such pulses in succeeding stages of laser amplification. The results are compared to data obtained with a TEA CO₂ oscillator‐amplifier system. Title: Pulse evolution in CO₂ lasers Author: Casperson, Lee W., Herbst, M. J., Turechek, John J. Year: 1976 Explicit formulas are examined for the development of optical pulses in gain‐switched or Q‐switched laser oscillators and for the distortion of such pulses in succeeding stages of laser amplification. The results are compared to data obtained with a TEA CO₂ oscillator‐amplifier system. Close

• 3. [Article] Coherence effects in synchronously pumped mode‐locked dye lasers

  A formalism is developed for describing the evolution of picosecond mode‐locked pulses in synchronously pumped dye lasers. The finite phase memory of the molecular wave functions is included, and it is ...

  Citation × Citation Citation Abstract Copy Title: Coherence effects in synchronously pumped mode‐locked dye lasers Author: Casperson, Lee W. Year: 1982 A formalism is developed for describing the evolution of picosecond mode‐locked pulses in synchronously pumped dye lasers. The finite phase memory of the molecular wave functions is included, and it is found that the resultant coherence effects can be dominant for operation close to exact synchrony. Considerations of the isotropic molecular orientational distribution and the finite vibrational relaxation times are also essential in obtaining quantitative agreement with experimental results. Title: Coherence effects in synchronously pumped mode‐locked dye lasers Author: Casperson, Lee W. Year: 1982 A formalism is developed for describing the evolution of picosecond mode‐locked pulses in synchronously pumped dye lasers. The finite phase memory of the molecular wave functions is included, and it is found that the resultant coherence effects can be dominant for operation close to exact synchrony. Considerations of the isotropic molecular orientational distribution and the finite vibrational relaxation times are also essential in obtaining quantitative agreement with experimental results. Close

• 4. [Article] Few-Cycle Pulses in Two-Level Media

  Techniques for producing, measuring, and applying ever shorter electromagnetic pulses are being developed for incorporation in a variety of modern high-speed systems. In many cases these pulses are at ...

  Citation × Citation Citation Abstract Copy Title: Few-Cycle Pulses in Two-Level Media Author: Casperson, Lee W. Year: 1998 Techniques for producing, measuring, and applying ever shorter electromagnetic pulses are being developed for incorporation in a variety of modern high-speed systems. In many cases these pulses are at most a few cycles in length, and so-called half-cycle electromagnetic pulses are also widely employed. The interaction of such pulses with two-level media is considered here in detail, and these media are basic to many of the absorbing and amplifying configurations of optics and laser studies. Significant delays and distortion of the resulting polarization and population pulses can occur, and nonlinear optical effects are also revealed. The limitations of the parity, rate-equation, and rotating-wave approximations for the characterization of such few-cycle interactions are also explored. Title: Few-Cycle Pulses in Two-Level Media Author: Casperson, Lee W. Year: 1998 Techniques for producing, measuring, and applying ever shorter electromagnetic pulses are being developed for incorporation in a variety of modern high-speed systems. In many cases these pulses are at most a few cycles in length, and so-called half-cycle electromagnetic pulses are also widely employed. The interaction of such pulses with two-level media is considered here in detail, and these media are basic to many of the absorbing and amplifying configurations of optics and laser studies. Significant delays and distortion of the resulting polarization and population pulses can occur, and nonlinear optical effects are also revealed. The limitations of the parity, rate-equation, and rotating-wave approximations for the characterization of such few-cycle interactions are also explored. Close