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Delay-gain decoupling in Brillouin-assisted slow light

Delay-gain decoupling in Brillouin-assisted slow light
Delay-gain decoupling in Brillouin-assisted slow light
In Brillouin-assisted slow-light the induced delay is always linked to a particular gain; i.e., the delay is directly proportional to the gain expressed in decibels. However, for certain applications this may be restrictive, and techniques to decouple gain and delay are thus of considerable practical interest. We propose a way to effectively decouple these two parameters that, subject to inherent physical constraints, can be used to obtain a delay line capable of providing arbitrary gain (or alternatively an amplifier that can provide arbitrary delay for a fixed gain). The decoupling mechanism relies upon operating the amplifier in the pump-depletion regime. Other advantages of this approach, as well as its limitations in the context of slow-light, are discussed.
0146-9592
2701-2703
Jáuregui, César
5b074918-bda5-42d4-ae91-d90fb2ca9d63
Petropoulos, Periklis
522b02cc-9f3f-468e-bca5-e9f58cc9cad7
Richardson, David J.
ebfe1ff9-d0c2-4e52-b7ae-c1b13bccdef3
Jáuregui, César
5b074918-bda5-42d4-ae91-d90fb2ca9d63
Petropoulos, Periklis
522b02cc-9f3f-468e-bca5-e9f58cc9cad7
Richardson, David J.
ebfe1ff9-d0c2-4e52-b7ae-c1b13bccdef3

Jáuregui, César, Petropoulos, Periklis and Richardson, David J. (2007) Delay-gain decoupling in Brillouin-assisted slow light. Optics Letters, 32 (18), 2701-2703. (doi:10.1364/OL.32.002701).

Record type: Article

Abstract

In Brillouin-assisted slow-light the induced delay is always linked to a particular gain; i.e., the delay is directly proportional to the gain expressed in decibels. However, for certain applications this may be restrictive, and techniques to decouple gain and delay are thus of considerable practical interest. We propose a way to effectively decouple these two parameters that, subject to inherent physical constraints, can be used to obtain a delay line capable of providing arbitrary gain (or alternatively an amplifier that can provide arbitrary delay for a fixed gain). The decoupling mechanism relies upon operating the amplifier in the pump-depletion regime. Other advantages of this approach, as well as its limitations in the context of slow-light, are discussed.

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More information

Published date: September 2007

Identifiers

Local EPrints ID: 49784
URI: https://eprints.soton.ac.uk/id/eprint/49784
ISSN: 0146-9592
PURE UUID: b46d88b0-64c5-4892-9f48-3216db23f91c
ORCID for Periklis Petropoulos: ORCID iD orcid.org/0000-0002-1576-8034
ORCID for David J. Richardson: ORCID iD orcid.org/0000-0002-7751-1058

Catalogue record

Date deposited: 03 Dec 2007
Last modified: 20 Jul 2019 01:24

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Contributors

Author: César Jáuregui

University divisions

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