Progress towards absolute frequency measurement of the 127I2-stabilized Nd:YAG laser at 563.2 THz/532 nm

F. Ducos, Y. Hadjar, D. Rovera, J. J. Zondy, O. Acef

Research output: Contribution to journalConference articlepeer-review


To measure the absolute frequency of 127I2-stabilized Nd:YAG laser at 563.2 THz, a method based on a frequency difference generation (DFG) of two diode lasers operating in the near infrared region is proposed. A narrow free running spectral linewidth α-DFB diode laser operating at 281 THz (DL1) and a diode laser at operating at 192.6 THz (DL2). The diode laser DL1 is frequency doubled in a KTP crystal placed in a ring cavity of a finesse of about 100 and frequency of DL2 is doubled in a periodically poled lithium niobate (PPLN) crystal to phase lock the laser to the 385 THz rubidium optical frequency standard (OFS2).

Original languageEnglish
Number of pages1
JournalCPEM Digest (Conference on Precision Electromagnetic Measurements)
Publication statusPublished - Dec 11 2000
Externally publishedYes
Event2000 Conference on Precision Electromagnetic Measurements - Sydney, Australia
Duration: May 14 2000May 19 2000

ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials
  • Instrumentation
  • Electrical and Electronic Engineering

Fingerprint Dive into the research topics of 'Progress towards absolute frequency measurement of the <sup>127</sup>I<sub>2</sub>-stabilized Nd:YAG laser at 563.2 THz/532 nm'. Together they form a unique fingerprint.

Cite this