A High-Bandwidth Electrical-Waveform Generator Based on Aperture-Coupled Striplines for OMEGA Pulse-Shaping Applications
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چکیده
LLE Review, Volume 73 1 Pulsed-laser systems emit optical pulses having a temporal pulse shape characteristic of the particular type of laser design. Advances in technology have produced laser-pulseshaping systems where the laser temporal profile can be specified in advance and controlled to a high degree of accuracy.1–3 A pulse-shaping system has been in operation on OMEGA for several years. Temporally shaped optical pulses can be produced by applying shaped electrical waveforms to a dual-channel integrated-optics modulator.1–3 These shaped electrical waveforms are sent to the optical modulator synchronized with the passage through the modulator of an optical pulse from a single-longitudinal-mode (SLM) laser.4 The optical pulse exiting the modulator is then shaped in accordance with the voltage-dependent transfer function of the modulator. Hence, the electrical-waveform generator is an important component in any optical-pulse-shaping system incorporating optical modulators. This article discusses a greatly simplified pulse-shaping system based on an aperturecoupled-stripline (ACSL) electrical-waveform generator under development for OMEGA, and compares its many advantages over the existing OMEGA pulse-shaping system. A High-Bandwidth Electrical-Waveform Generator Based on Aperture-Coupled Striplines for OMEGA Pulse-Shaping Applications
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