Dual-frequency laser at 1.5 μm for optical distribution and generation of high-purity microwave signals

Grégoire Pillet; Loîc Morvan; Marc Brunel; Fabien Bretenaker; Daniel Dolfi; Marc Vallet; Jean Pierre Huignard; Albert Le Floch

doi:10.1109/JLT.2008.927209

Dual-frequency laser at 1.5 μm for optical distribution and generation of high-purity microwave signals

Grégoire Pillet, Loîc Morvan, Marc Brunel, Fabien Bretenaker, Daniel Dolfi, Marc Vallet, Jean Pierre Huignard, Albert Le Floch

Research output: Contribution to journal › Article › peer-review

Abstract

We describe the stabilization of the beatnote of an Er,Yb:glass dual-frequency laser at 1.5 μm with and without an external microwave reference. In the first case, a classical optical phase-locked loop (OPLL) is used, and absolute phase noise levels as low as - 117 dBrad²/Hz at 10 kHz from the carrier are reported. In the second case one or two fiber-optic delay lines are used to lock the frequency of the beatnote. Absolute phase noise levels as low as - 107 dBrad²/Hz at 10 kHz from the carrier are measured, fairly independant of the beatnote frequency varying from 2 to 6 GHz. An analysis of the phase noise level limitation is presented in the linear servo-loop theory framework. The expected phase noise level calculated from the measurement of the different noise sources fits well with the predictions.

Original language	English
Pages (from-to)	2764-2773
Number of pages	10
Journal	Journal of Lightwave Technology
Volume	26
Issue number	15
DOIs	https://doi.org/10.1109/JLT.2008.927209
Publication status	Published - 1 Jan 2008
Externally published	Yes

Keywords

Delay lines
Delay lock loops
Frequency-locked loops
Microwave oscillators
Optical phase-locked loops (OPLL)
Phase noise
Solid-state lasers

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10.1109/JLT.2008.927209

Cite this

@article{580226c7a800448eadf755bd900c741b,

title = "Dual-frequency laser at 1.5 μm for optical distribution and generation of high-purity microwave signals",

abstract = "We describe the stabilization of the beatnote of an Er,Yb:glass dual-frequency laser at 1.5 μm with and without an external microwave reference. In the first case, a classical optical phase-locked loop (OPLL) is used, and absolute phase noise levels as low as - 117 dBrad2/Hz at 10 kHz from the carrier are reported. In the second case one or two fiber-optic delay lines are used to lock the frequency of the beatnote. Absolute phase noise levels as low as - 107 dBrad2/Hz at 10 kHz from the carrier are measured, fairly independant of the beatnote frequency varying from 2 to 6 GHz. An analysis of the phase noise level limitation is presented in the linear servo-loop theory framework. The expected phase noise level calculated from the measurement of the different noise sources fits well with the predictions.",

keywords = "Delay lines, Delay lock loops, Frequency-locked loops, Microwave oscillators, Optical phase-locked loops (OPLL), Phase noise, Solid-state lasers",

author = "Gr{\'e}goire Pillet and Lo{\^i}c Morvan and Marc Brunel and Fabien Bretenaker and Daniel Dolfi and Marc Vallet and Huignard, \{Jean Pierre\} and \{Le Floch\}, Albert",

year = "2008",

month = jan,

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doi = "10.1109/JLT.2008.927209",

language = "English",

volume = "26",

pages = "2764--2773",

journal = "Journal of Lightwave Technology",

issn = "0733-8724",

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TY - JOUR

T1 - Dual-frequency laser at 1.5 μm for optical distribution and generation of high-purity microwave signals

AU - Pillet, Grégoire

AU - Morvan, Loîc

AU - Brunel, Marc

AU - Bretenaker, Fabien

AU - Dolfi, Daniel

AU - Vallet, Marc

AU - Huignard, Jean Pierre

AU - Le Floch, Albert

PY - 2008/1/1

Y1 - 2008/1/1

N2 - We describe the stabilization of the beatnote of an Er,Yb:glass dual-frequency laser at 1.5 μm with and without an external microwave reference. In the first case, a classical optical phase-locked loop (OPLL) is used, and absolute phase noise levels as low as - 117 dBrad2/Hz at 10 kHz from the carrier are reported. In the second case one or two fiber-optic delay lines are used to lock the frequency of the beatnote. Absolute phase noise levels as low as - 107 dBrad2/Hz at 10 kHz from the carrier are measured, fairly independant of the beatnote frequency varying from 2 to 6 GHz. An analysis of the phase noise level limitation is presented in the linear servo-loop theory framework. The expected phase noise level calculated from the measurement of the different noise sources fits well with the predictions.

AB - We describe the stabilization of the beatnote of an Er,Yb:glass dual-frequency laser at 1.5 μm with and without an external microwave reference. In the first case, a classical optical phase-locked loop (OPLL) is used, and absolute phase noise levels as low as - 117 dBrad2/Hz at 10 kHz from the carrier are reported. In the second case one or two fiber-optic delay lines are used to lock the frequency of the beatnote. Absolute phase noise levels as low as - 107 dBrad2/Hz at 10 kHz from the carrier are measured, fairly independant of the beatnote frequency varying from 2 to 6 GHz. An analysis of the phase noise level limitation is presented in the linear servo-loop theory framework. The expected phase noise level calculated from the measurement of the different noise sources fits well with the predictions.

KW - Delay lines

KW - Delay lock loops

KW - Frequency-locked loops

KW - Microwave oscillators

KW - Optical phase-locked loops (OPLL)

KW - Phase noise

KW - Solid-state lasers

U2 - 10.1109/JLT.2008.927209

DO - 10.1109/JLT.2008.927209

M3 - Article

AN - SCOPUS:54949096661

SN - 0733-8724

VL - 26

SP - 2764

EP - 2773

JO - Journal of Lightwave Technology

JF - Journal of Lightwave Technology

IS - 15

ER -

Dual-frequency laser at 1.5 μm for optical distribution and generation of high-purity microwave signals

Abstract

Keywords

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