Optical waveform detecting device

Details Optical waveform detecting device Optical waveform detecting device

1997-08-06

1999-02-02

Westin, Edward P.

Radiant energy

Photocells; circuits and apparatus

Photocell controlled circuit

313529, H01J 3150

Patent

active

058668977

ABSTRACT:
The optical trigger 22 outputs a trigger signal in. synchronization with a pulse beam falling incident on the photocathode 91 of the streak tube 90. The deflection voltage generator 50 applies a pair of deflection voltages to the deflection electrodes 93 and 93' in the streak tube 90. The differential amplifier 60 detects the deflection voltages, and outputs a deflection voltage detection signal. The delay comparator 71 detects a time difference between the deflection voltage detection signal and the trigger signal, and outputs a difference signal indicative of the detected time difference. Based on the difference signal, the voltage control delay circuit 41 controls a delay amount of the deflection voltages to be outputted from the generator 50.

REFERENCES:
patent: 4769705 (1988-09-01), Lendaro
patent: 4942293 (1990-07-01), Koishi et al.
patent: 4947031 (1990-08-01), Koishi et al.
"Universal Streak Camera",Toru Tsuchiya et al., Jul. 20, 1984, pp. 31-41.
"Reduction of Phase Noise in Passively Mode-Locked Lasers", Walker et al., IEEE Journal of Quantum Electronics, Jan. 1992; pp. 289-296.
"Time Synchronisation Measurements Between Two Self-Modellocked Ti;sapphire Lasers"; Spence et al., Optics Communications 101(1993) 286-296.

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