A data-acquisition system for a high-power Nd:glass laser chain

Navathe, C. P.; Ansari, M. S.

doi:10.1088/0957-0233/5/8/002

Cited by 3 publications

(2 citation statements)

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“…The data acquired as a result of firing this chain, such as leftover voltages and energy measured by the data acquisition unit [5] are displayed on a monitor.…”

Section: Operation Of Control Systemmentioning

confidence: 99%

A simple and versatile electronic control system for a picosecond Nd:YLF oscillator - Nd:glass amplifier laser chain

Navathe

Ansari

Upadhyay

et al. 1997

Meas. Sci. Technol.

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An electronic control system, developed for power conditioning of a picosecond Nd:YLF - Nd:glass laser oscillator - amplifier chain is described. The system generates charging and firing signals required for a commercial picosecond oscillator operated in a repetitive mode, and also carries out a charging and firing sequence of external amplifiers for single-shot operation. The system also controls a mechanical shutter to selectively pass a laser pulse from the oscillator for subsequent amplification. The laser chain includes a Faraday isolator incorporated with a safety check. A control signal is generated by this unit when conditions suitable for a sufficient level of isolation are achieved, and the same is used for gating the oscillator pulse. Good synchronization is confirmed from the measurements of amplifier gain as a function of the relative time delay in firing of different stages. The electronics developed is simple and modular, with sufficient scope for expansion of the system, and resistant to electromagnetic interference.

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“…The data acquired as a result of firing this chain, such as leftover voltages and energy measured by the data acquisition unit [5] are displayed on a monitor.…”

Section: Operation Of Control Systemmentioning

confidence: 99%

A simple and versatile electronic control system for a picosecond Nd:YLF oscillator - Nd:glass amplifier laser chain

Navathe

Ansari

Upadhyay

et al. 1997

Meas. Sci. Technol.

Self Cite

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“…Various energy meters are reported in [1][2][3][4][5][6][7][8][9][10]. Most of these reports are quite old.…”

Section: Introductionmentioning

confidence: 99%

A sensitive and high dynamic range laser energy meter

Krishnan

Bindra

2011

Meas. Sci. Technol.

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We report a sensitive and high dynamic range photodiode-based laser energy meter. The essential blocks of the energy meter are the photodetector circuit, the signal conditioning circuit and the capacitor discharge circuit. The output signal of the energy meter is read on an oscilloscope. The effective dynamic range of the energy meter measured at a laser wavelength of 532 nm is 6 × 106 and the minimum detectable energy is about 2 pJ. The large dynamic range is obtained by incorporating different energy sensing capacitors and the amplification of the input signal. The minimum detectable energy and the effective dynamic range of the energy meter are better than that of the energy meters reported in the literature.

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