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Hänsch–Couillaud locking of Mach–Zehnder interferometer for carrier removal from a phase-modulated optical spectrum

Hänsch–Couillaud locking of Mach–Zehnder interferometer for carrier removal from a phase-modulated optical spectrum
Hänsch–Couillaud locking of Mach–Zehnder interferometer for carrier removal from a phase-modulated optical spectrum
We describe and analyze the operation and stabilization of a Mach–Zehnder interferometer, which separates the carrier and the first-order sidebands of a phase-modulated laser field, and which is locked using the Hänsch–Couillaud method. In addition to the necessary attenuation, our interferometer introduces, via total internal reflection, a significant polarization-dependent phase delay. We employ a general treatment to describe an interferometer with an object that affects the field along one path, and we examine how this phase delay affects the error signal. We discuss the requirements necessary to ensure the lock point remains unchanged when phase modulation is introduced, and we demonstrate and characterize this locking experimentally. Finally, we suggest an extension to this locking strategy using heterodyne detection
0740-3224
1530-1533
Bateman, J. E.
07e9b709-b067-49a8-b05c-67a637f605b9
Murray, R.L.D.
8a1bce29-1861-405c-a347-e8cd794e4836
Himsworth, M.
24e9b896-b4d3-40f7-8047-82a38efa4898
Ohadi, H.
6d640feb-3da7-4a79-8e71-16190bf9a3f7
Xuereb, A.
587d3600-f894-4909-9395-82bc6ab1cf4e
Freegarde, T.
01a5f53b-d406-44fb-a166-d8da9128ea7d
Bateman, J. E.
07e9b709-b067-49a8-b05c-67a637f605b9
Murray, R.L.D.
8a1bce29-1861-405c-a347-e8cd794e4836
Himsworth, M.
24e9b896-b4d3-40f7-8047-82a38efa4898
Ohadi, H.
6d640feb-3da7-4a79-8e71-16190bf9a3f7
Xuereb, A.
587d3600-f894-4909-9395-82bc6ab1cf4e
Freegarde, T.
01a5f53b-d406-44fb-a166-d8da9128ea7d

Bateman, J. E., Murray, R.L.D., Himsworth, M., Ohadi, H., Xuereb, A. and Freegarde, T. (2010) Hänsch–Couillaud locking of Mach–Zehnder interferometer for carrier removal from a phase-modulated optical spectrum. Journal of the Optical Society of America B, 27 (8), 1530-1533. (doi:10.1364/JOSAB.27.001530).

Record type: Article

Abstract

We describe and analyze the operation and stabilization of a Mach–Zehnder interferometer, which separates the carrier and the first-order sidebands of a phase-modulated laser field, and which is locked using the Hänsch–Couillaud method. In addition to the necessary attenuation, our interferometer introduces, via total internal reflection, a significant polarization-dependent phase delay. We employ a general treatment to describe an interferometer with an object that affects the field along one path, and we examine how this phase delay affects the error signal. We discuss the requirements necessary to ensure the lock point remains unchanged when phase modulation is introduced, and we demonstrate and characterize this locking experimentally. Finally, we suggest an extension to this locking strategy using heterodyne detection

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Published date: 2010

Identifiers

Local EPrints ID: 185433
URI: http://eprints.soton.ac.uk/id/eprint/185433
ISSN: 0740-3224
PURE UUID: 3ae504be-28aa-4170-8b2f-303d4d8baefa
ORCID for T. Freegarde: ORCID iD orcid.org/0000-0002-0680-1330

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Date deposited: 10 May 2011 13:58
Last modified: 20 Jul 2019 01:00

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Contributors

Author: J. E. Bateman
Author: R.L.D. Murray
Author: M. Himsworth
Author: H. Ohadi
Author: A. Xuereb
Author: T. Freegarde ORCID iD

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