KFU. Card publication. Pulse shaping by a frequency filtering of a sawtooth phase-modulated cw laser

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FEDERAL UNIVERSITY

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PULSE SHAPING BY A FREQUENCY FILTERING OF A SAWTOOTH PHASE-MODULATED CW LASER

Form of presentation

Articles in international journals and collections

Year of publication

2019

Язык

английский

Authors, employees of KFU

Shakhmuratov Rustem Nazimovich, author

Bibliographic description in the original language

Shakhmuratov R.N. Pulse shaping by a frequency filtering of a sawtooth phase-modulated cw laser // Physical Review A. - 2019. - No.4. - P. 043823(10).

Annotation

The spectrum of a cw field the phase of which experiences a periodic sawtooth modulation is analyzed. Two types of the sawtooth phase modulation are considered. One is created by combining many harmonics of the fundamental frequency. The second is produced by an electro-optic modulator fed by the relaxation oscillator, which generates a voltage slowly rising during charging of the energy storage device and dropping fast due to discharge by a short circuit. It is proposed to filter out the main spectral component of the sawtooth phase modulated field. This filtering produces short pulses from the phase-modulated cw field. The duty cycle of this train is equal to the modulation period, while duration of the pulses depends on the rate of the phase drop. In the case of harmonics, this duration is 4N + 2 shorter than the period of the fundamental frequency, where N is the number of the harmonics. In the case of the charge and discharge, duration of the pulses is close to TD/2, where TD is a drop time of the phase in the discharge period. Depending on the modulation frequency, the proposed method is capable to produce pulses with duration ranging from nanoseconds to a fraction of a picosecond.

Keywords

фазовая модуляция, формирование коротких импульсов, резонансная фильтрация

The name of the journal

PHYS REV A

URL

https://journals.aps.org/pra/abstract/10.1103/PhysRevA.100.043823

Please use this ID to quote from or refer to the card

https://repository.kpfu.ru/eng/?p_id=213305&p_lang=2

Resource files

File name	Size (MB)	Format
F_PhysRevA.100.043823.pdf	0,98	pdf	show / download

Full metadata record

Field DC	Value	Language
dc.contributor.author	Shakhmuratov Rustem Nazimovich	ru_RU
dc.date.accessioned	2019-01-01T00:00:00Z	ru_RU
dc.date.available	2019-01-01T00:00:00Z	ru_RU
dc.date.issued	2019	ru_RU
dc.identifier.citation	Shakhmuratov R.N. Pulse shaping by a frequency filtering of a sawtooth phase-modulated cw laser // Physical Review A. - 2019. - No.4. - P. 043823(10).	ru_RU
dc.identifier.uri	https://repository.kpfu.ru/eng/?p_id=213305&p_lang=2	ru_RU
dc.description.abstract	PHYS REV A	ru_RU
dc.description.abstract	The spectrum of a cw field the phase of which experiences a periodic sawtooth modulation is analyzed. Two types of the sawtooth phase modulation are considered. One is created by combining many harmonics of the fundamental frequency. The second is produced by an electro-optic modulator fed by the relaxation oscillator, which generates a voltage slowly rising during charging of the energy storage device and dropping fast due to discharge by a short circuit. It is proposed to filter out the main spectral component of the sawtooth phase modulated field. This filtering produces short pulses from the phase-modulated cw field. The duty cycle of this train is equal to the modulation period, while duration of the pulses depends on the rate of the phase drop. In the case of harmonics, this duration is 4N + 2 shorter than the period of the fundamental frequency, where N is the number of the harmonics. In the case of the charge and discharge, duration of the pulses is close to TD/2, where TD is a drop time of the phase in the discharge period. Depending on the modulation frequency, the proposed method is capable to produce pulses with duration ranging from nanoseconds to a fraction of a picosecond.	ru_RU
dc.language.iso	ru	ru_RU
dc.subject	фазовая модуляция	ru_RU
dc.subject	формирование коротких импульсов	ru_RU
dc.subject	резонансная фильтрация	ru_RU
dc.title	Pulse shaping by a frequency filtering of a sawtooth phase-modulated cw laser	ru_RU
dc.type	Articles in international journals and collections	ru_RU