High-peak power nanosecond optical parametric amplifier with periodically poled KTP

• A two-stage optical parametric amplifier generating 5 ns 208 kW peak power pulses in the spectral region at 1.535 mum in a diffraction-limited beam was realized in a single periodically poled KTP crystal. The maximum small-signal gain for the two stages reached 75dB and the total conversion efficiency was 30%. An analysis of the small-signal gain dependence on the M-2 of the pump beam is presented for the collinear and noncollinear OPA. Efficient spectral broadening of the signal was demonstrated in short pieces of single-mode telecommunication fiber.

Ämnesord

NATURVETENSKAP  -- Fysik -- Atom- och molekylfysik och optik (hsv//swe)

NATURAL SCIENCES  -- Physical Sciences -- Atom and Molecular Physics and Optics (hsv//eng)

Nyckelord

Crystal structure

Four wave mixing

Gain control

Noise abatement

Nonlinear optics

Optical cables

Optical radar

Parametric amplifiers

Raman scattering

Semiconductor lasers

Signal processing

Tissue

Parametric processes

Phase matching

Seed energy

Signal propagation

Single-mode telecommunication fiber

Optical physics

Optisk fysik

Publikations- och innehållstyp

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