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Short Course

Applied Nonlinear Frequency Conversion (SC931)

Course Level: Intermediate
Format Member Non-Member
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This course provides detailed knowledge on the operation and design of nonlinear frequency conversion devices. The emphasis is on frequency conversion in (2) nonlinear crystals, such as frequency doubling, sum and difference frequency generation and parametric oscillation. In addition, Raman amplifiers and lasers (including bulk and fiber-based devices) are treated, and briefly also Brillouin fiber lasers. The course gives an overview of nonlinear crystal materials and addresses the details of phase matching, showing how a certain phase-matching configuration may be chosen based on given device requirements. For various cases, it is shown how to estimate the achievable conversion efficiency. The conversion of short and ultrashort optical pulses is also discussed. Some case studies demonstrate the influence of various practical issues.


This course will enable you to:
  • explain the principles of operation of various nonlinear conversion devices, including resonant frequency doublers and parametric amplifiers
  • select a suitable nonlinear material for use in conversion device
  • estimate the conversion efficiency of such devices
  • identify special considerations for the conversion of short pulses
  • describe some typical design trade-offs
  • design at least some simpler devices, (e.g. resonant continuous-wave frequency doublers) for your own applications


This course is intended for laser engineers and researchers being interested in nonlinear frequency conversion devices. They should already have some basic knowledge of laser beams and ideally also of elementary nonlinear optics.

About the

Rüdiger Paschotta is an expert in laser physics and laser technology, who originally was a scientific researcher. In 2004, he founded RP Photonics Consulting GmbH and provides technical consultancy primarily for companies building or using lasers.


No additional notes for this course format.
Format Member Non-Member
Contact SPIE
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