ULTRA LOW PHASE NOISE OPTICAL PHASE LOCKING OF TWO EXTENDED-CAVITY DIODE LASERS FOR AN ATOM INTERFEROMETRY |
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| Sin Hyuk Yim, Sang Eon Park, Sang Bum Lee, D. Cho, Taeg Yong Kwon |
- Abstract:
- We present an electrical heterodyne phase locking of two ECDLs (Extended-cavity diode lasers) with a frequency difference of 6.9 GHz. We could increase the bandwidth of the phase locked loop up to 8 MHz with an electrical feedback to a current of a slave ECDL. And we have achieved the residual phase noise below -120 dBrad2/Hz between two phase-locked ECDLs in the frequency range from 100 Hz to 300 kHz, which is the lowest phase noise level ever reported with ECDLs.
- Keywords:
- optical phase-locked loop, extended-cavity diode laser, phase noise, atom interferometry
- Download:
- IMEKO-WC-2012-TC2-O11.pdf
- DOI:
- -
- Event details
- Event name:
- XX IMEKO World Congress
- Title:
Metrology for Green Growth
- Place:
- Busan, REPUBLIC of KOREA
- Time:
- 09 September 2012 - 12 September 2012