Open AccessPiezo-electric transducer actuated mirror with a servo bandwidth beyond 500 kHz
Author(s) -
Takaki Nakamura,
Shuntaro Tani,
Isao Itō,
Mamoru Endo,
Yohei Kobayashi
Publication year - 2020
Publication title -
optics express
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.394
H-Index - 271
ISSN - 1094-4087
DOI - 10.1364/oe.390042
Subject(s) - transducer , bandwidth (computing) , optics , servo bandwidth , laser , electronic circuit , piezoelectricity , materials science , servo , acoustics , computer science , servo control , physics , electrical engineering , telecommunications , engineering , artificial intelligence
We demonstrate a novel system that uses a piezoelectric transducer (PZT)-actuated mirror for laser stabilization. A combination of a simple mechanical design and electronic circuits is used to realize an ultra-flat frequency response, which enables an effective feedback bandwidth of 500 kHz. The PZT also performed well when used in a mode-locked laser with a GHz repetition rate, to which it is difficult to apply an electro-optic modulator (EOM).