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Single-lockin Detection of AC Magnetic Fields by Fluxgate Sensor
We present a simple narrowband method to detect the amplitude of alternating magnetic fields by a fluxgate sensor using a single lock-in amplifier, eliminating some of the drawbacks of common method of using two phase sensitive demo...
JB - Senzory, čidla, měření a regulace
- 2010 •
- D
Rok uplatnění
D - Stať ve sborníku
Measurement of low AC currents by the standard current probe equipped with lock-in amplifier
of the current probe by an additional external lock-in amplifier. The paper describes the principle of the lock-in amplifier in general and design of the laboratory fixture of lock-in amplifier b...
Electrical and electronic engineering
- 2022 •
- D •
- Link
Rok uplatnění
D - Stať ve sborníku
Výsledek na webu
Low noise amplifier for optical measurements
This paper discusses the narrow-band signal amplification using the lock-in amplifier. The signal with signal to noise ratio -100dB can be processed. This technique is practically demonstrated on the device for optical visibility me...
JA - Elektronika a optoelektronika, elektrotechnika
- 2009 •
- Jx
Rok uplatnění
Jx - Nezařazeno - Článek v odborném periodiku (Jimp, Jsc a Jost)
Pump-controlled gain-locked Raman fibre amplifier.
Preliminary results of numerical simulation of pump-controlled, gain-locked Raman fibre amplifier have been presented. Numerical model of the gain-locked amplifier is based on interative solution of propagation equ...
JA - Elektronika a optoelektronika, elektrotechnika
- 2002 •
- D
Rok uplatnění
D - Stať ve sborníku
Protection of surviving channels in pump-controlled gain-locked Raman fiber amplifier.
We present results of numerical analysis on transient gain response to channel addition/removal in a counter-directionally pumped Raman fibre amplifier (RFA) with a pump-controlled gain-locking feedback loop. To lock the ga...
JA - Elektronika a optoelektronika, elektrotechnika
- 2002 •
- Jx
Rok uplatnění
Jx - Nezařazeno - Článek v odborném periodiku (Jimp, Jsc a Jost)
Calibration of instrument current transformers at low currents using lock-in amplifier
A system for evaluating instrument current transformer errors using a lock-in amplifier is described in the paper. The difference between the standard and the transformer under test is evaluated as the ratio error and the phase disp...
Electrical and electronic engineering
- 2017 •
- D •
- Link
Rok uplatnění
D - Stať ve sborníku
Výsledek na webu
Calibration of instrument current transformers at low currents using lock-in amplifier
A system for evaluating instrument current transformer errors using a lock-in amplifier is described in the paper. The difference between the standard and the transformer under test is evalu...
Electrical and electronic engineering
- 2017 •
- D •
- Link
Rok uplatnění
D - Stať ve sborníku
Výsledek na webu
Modeling of a pump-power-controlled gain-locking system for multi-pump wideband Raman fibre amplifiers
In this contribution we analyze the recently proposed and experimentally tested gain-locking technique for Raman fibre amplifiers, based on surviving channel power monitoring and pump power control. The analysis is based on the appl...
JA - Elektronika a optoelektronika, elektrotechnika
- 2004 •
- Jx
Rok uplatnění
Jx - Nezařazeno - Článek v odborném periodiku (Jimp, Jsc a Jost)
Quasi-continuously pumped passively mode-locked 2.4% doped Nd:YAG oscillator-amplifier system in a bounce geometry
We report on oscillator-amplifier system based on two highly doped 2.4 at. % crystalline Czochralski grown Nd:YAG crystals in a diode pumped bounce geometry configuration under quasi-continuous pumping. The oscillator was passively mode-...
BH - Optika, masery a lasery
- 2010 •
- D
Rok uplatnění
D - Stať ve sborníku
Flashlamp pumped oscillator-amplifier Nd:YAG system mode locked using multiple quantum well saturable absorber
We report on flashlamp pumped oscillator - three amplifiers Nd:YAG picosecond laser system in which the liquid saturable dye used for passive mode locking is replaced by semiconductor saturable absorber with multiple quantum well (M...
BH - Optika, masery a lasery
- 2004 •
- D
Rok uplatnění
D - Stať ve sborníku
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