METHOD OF STABILISING LASER EMISSION FREQUENCY Russian patent published in 2012 - IPC H01S3/139 

Abstract RU 2447557 C2

FIELD: physics.

SUBSTANCE: emission power resonance is formed in a laser resonator, a signal which is proportional to the output emission power of the laser is measured and the laser resonator is modulated with a probe signal which is proportional to laser emission frequency fluctuations. The sign of the current resonance gradient of the emission power is determined from the signal which is proportional to the output emission power of the laser and said probe signal. At each tuning step, a signal for tuning the laser resonator is generated, which coincides with the sign of the current gradient on the extremum of the laser emission power resonance. The amplitude of the tuning signal at each tuning step is variable and proportional to the current value of the modulus of the asymmetry coefficient - the standardised third midpoint of the distribution density function of the signal of the laser output emission power. In order to generate the tuning signal, a cross-correlation function between the signal of the laser output emission power and the signal which is proportional to laser emission frequency fluctuation is determined. The signal which is proportional to laser emission frequency fluctuations is first passed through a tunable band-pass filter whose centre frequency is inversely proportional to the value of the time argument of the maximum of the found cross-correlation function.

EFFECT: high stability of laser emission frequency.

1 dwg

Similar patents RU2447557C2

Title Year Author Number
METHOD OF STABILIZING LASER RADIATION FREQUENCY AND LASER STABILIZED BY RADIATION FREQUENCY 2016
  • Borisov Boris Dmitrievich
  • Kvashnin Nikolaj Leonidovich
RU2634368C1
METHOD OF STABILISATION OF LASER EMISSION FREQUENCY 2007
  • Borisov Boris Dmitrievich
RU2352038C1
METHOD FOR STABILIZING LASER-EMISSION FREQUENCY AND EMISSION- FREQUENCY STABILIZED LASER 2003
  • Borisov B.D.
  • Dychkov A.S.
RU2266595C2
LASER RADIATION POWER STABILIZATION SYSTEM AND METHOD OF ITS USE 2023
  • Akulov Vladimir Aleksandrovich
  • Kvashnin Nikolai Leonidovich
  • Chupyra Andrei Gennadevich
RU2824023C1
ELECTRONIC PARAMAGNETIC RESONANCE RADIOSPECTROMETER 0
  • Linev Vladimir Nikolaevich
  • Marshalko Sergej Valentinovich
  • Mochalskij Viktor Borisovich
  • Muravskij Vladimir Aleksandrovich
SU1383179A1
FREQUENCY REGULATION METHOD FOR DOUBLE-MODE He-Ne/CH LASER 2006
  • Petrukhin Evgenij Aleksandrovich
  • Gubin Mikhail Aleksandrovich
  • Krylova Dar'Ja Dmitrievna
  • Shelkovnikov Aleksandr Sergeevich
RU2316863C1
CORRELATIVE FLUCTUATION MEASURING DEVICE 2006
  • Ermolenko Igor' Anatol'Evich
  • Savchenko Mikhail Petrovich
RU2339959C2
SYSTEM TO STABILISE FREQUENCY OF LASER RADIATION 2009
  • Zhmud' Vadim Arkad'Evich
  • Semibalamut Vladimir Mikhajlovich
RU2431909C2
METHOD OF LASER LOCATION AND LASER LOCATION DEVICE FOR ITS IMPLEMENTATION 2001
  • Kutaev Ju.F.
  • Mankevich S.K.
  • Nosach O.Ju.
  • Orlov E.P.
RU2183841C1
METHOD AND DEVISE FOR STABILIZING OPTICAL POWER AND SPECTRAL COMPOSITION OF RADIATION OF FIBRE LASER OF ULTRASHORT PULSES 2015
  • Mjasnikov Daniil Vladimirovich
  • Bychkov Ilja Nikolaevich
RU2605639C1

RU 2 447 557 C2

Authors

Borisov Boris Dmitrievich

Dates

2012-04-10Published

2009-07-13Filed