Simple-structured, subfemtosecond-resolution optical-microwave phase detector

Cited 1 time in webofscience Cited 0 time in scopus
  • Hit : 38
  • Download : 0
We demonstrate a simple all-fiber photonic phase detector that can measure the phase (timing) difference between an optical pulse train and a microwave signal with subfemto-second resolution and -60 dB-level amplitude-to-phase conversion coefficient. It is based on passive phase biasing of a Sagnac loop by the intrinsic phase shift of a symmetric 3 x 3 fiber coupler. By eliminating the necessity of magneto-optic components or complex radio frequency (RF) electronics for phase biasing of the Sagnac loop, this phase detector has potential to be implemented as an integrated photonic device as well. When using this device for synchronization between a 250 MHz mode-locked Er-fiber laser and an 8 GHz microwave oscillator, the minimum residual phase noise floor reaches < - 154 dBc/Hz (at 8 GHz carrier) with integrated root mean square (rms) timing jitter of 0.97 fs [1 Hz-1 MHz]. The long-term rms timing drift and frequency instability are 0.92 fs (over 5000 s) and 4 x 10(-19) (at 10,000 s averaging time), respectively. (C) 2018 Optical Society of America
Publisher
OPTICAL SOC AMER
Issue Date
2018-08
Language
English
Article Type
Article
Keywords

ER-FIBER LASERS; NOISE CONVERSION; FREQUENCY COMBS; PULSE TRAINS; SYNCHRONIZATION; AMPLITUDE; GENERATION; DRIFT; COMPENSATION; JITTER

Citation

OPTICS LETTERS, v.43, no.16, pp.3997 - 4000

ISSN
0146-9592
DOI
10.1364/OL.43.003997
URI
http://hdl.handle.net/10203/245580
Appears in Collection
ME-Journal Papers(저널논문)
Files in This Item
There are no files associated with this item.
This item is cited by other documents in WoS
⊙ Detail Information in WoSⓡ Click to see webofscience_button
⊙ Cited 1 items in WoS Click to see citing articles in records_button

qr_code

  • mendeley

    citeulike


rss_1.0 rss_2.0 atom_1.0