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.
2701-2703
Jáuregui, César
5b074918-bda5-42d4-ae91-d90fb2ca9d63
Petropoulos, Periklis
522b02cc-9f3f-468e-bca5-e9f58cc9cad7
Richardson, David J.
ebfe1ff9-d0c2-4e52-b7ae-c1b13bccdef3
September 2007
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), .
(doi:10.1364/OL.32.002701).
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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Published date: September 2007
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Local EPrints ID: 49784
URI: http://eprints.soton.ac.uk/id/eprint/49784
ISSN: 0146-9592
PURE UUID: b46d88b0-64c5-4892-9f48-3216db23f91c
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Date deposited: 03 Dec 2007
Last modified: 16 Mar 2024 02:58
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Author:
César Jáuregui
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