Influence of optical feedback on laser frequency spectrum and threshold conditions

Jens Henrik Osmundsen; Niels Gade

doi:10.1109/JQE.1983.1071857

Influence of optical feedback on laser frequency spectrum and threshold conditions

Jens Henrik Osmundsen
, Niels Gade

Technical University of Denmark

Research output: Contribution to journal › Journal article › Research › peer-review

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Abstract

The steady state behavior of the external cavity operated laser has been analyzed, taking into account multiple reflections. The effect of optical feedback is included in the phase- and gain-conditions by a factor which is shown to have a simple geometrical representation. From this representation it is easily seen how the laser frequency spectrum and the threshold gain depend on external parameters such as distance to the reflection point and the amount of optical feedback. Furthermore, by inserting a variable attenuator in the external cavity and measuring the threshold current versus transmittance we have simultaneously determined the photon lifetime and the absolute amount of optical feedback. For the laser considered we found the photon lifetimetau_{p} = 1.55ps.

Original language	English
Journal	I E E E Journal of Quantum Electronics
Volume	19
Issue number	3
Pages (from-to)	465-469
ISSN	0018-9197
DOIs	https://doi.org/10.1109/JQE.1983.1071857
Publication status	Published - 1983

Bibliographical note

Copyright: 1983 IEEE. Personal use of this material is permitted. However, permission to reprint/republish this material for advertising or promotional purposes or for creating new collective works for resale or redistribution to servers or lists, or to reuse any copyrighted component of this work in other works must be obtained from the IEEE

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title = "Influence of optical feedback on laser frequency spectrum and threshold conditions",

abstract = "The steady state behavior of the external cavity operated laser has been analyzed, taking into account multiple reflections. The effect of optical feedback is included in the phase- and gain-conditions by a factor which is shown to have a simple geometrical representation. From this representation it is easily seen how the laser frequency spectrum and the threshold gain depend on external parameters such as distance to the reflection point and the amount of optical feedback. Furthermore, by inserting a variable attenuator in the external cavity and measuring the threshold current versus transmittance we have simultaneously determined the photon lifetime and the absolute amount of optical feedback. For the laser considered we found the photon lifetimetau\_\{p\} = 1.55ps.",

author = "Osmundsen, \{Jens Henrik\} and Niels Gade",

note = "Copyright: 1983 IEEE. Personal use of this material is permitted. However, permission to reprint/republish this material for advertising or promotional purposes or for creating new collective works for resale or redistribution to servers or lists, or to reuse any copyrighted component of this work in other works must be obtained from the IEEE",

year = "1983",

doi = "10.1109/JQE.1983.1071857",

language = "English",

volume = "19",

pages = "465--469",

journal = "I E E E Journal of Quantum Electronics",

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T1 - Influence of optical feedback on laser frequency spectrum and threshold conditions

AU - Osmundsen, Jens Henrik

AU - Gade, Niels

N1 - Copyright: 1983 IEEE. Personal use of this material is permitted. However, permission to reprint/republish this material for advertising or promotional purposes or for creating new collective works for resale or redistribution to servers or lists, or to reuse any copyrighted component of this work in other works must be obtained from the IEEE

PY - 1983

Y1 - 1983

N2 - The steady state behavior of the external cavity operated laser has been analyzed, taking into account multiple reflections. The effect of optical feedback is included in the phase- and gain-conditions by a factor which is shown to have a simple geometrical representation. From this representation it is easily seen how the laser frequency spectrum and the threshold gain depend on external parameters such as distance to the reflection point and the amount of optical feedback. Furthermore, by inserting a variable attenuator in the external cavity and measuring the threshold current versus transmittance we have simultaneously determined the photon lifetime and the absolute amount of optical feedback. For the laser considered we found the photon lifetimetau_{p} = 1.55ps.

AB - The steady state behavior of the external cavity operated laser has been analyzed, taking into account multiple reflections. The effect of optical feedback is included in the phase- and gain-conditions by a factor which is shown to have a simple geometrical representation. From this representation it is easily seen how the laser frequency spectrum and the threshold gain depend on external parameters such as distance to the reflection point and the amount of optical feedback. Furthermore, by inserting a variable attenuator in the external cavity and measuring the threshold current versus transmittance we have simultaneously determined the photon lifetime and the absolute amount of optical feedback. For the laser considered we found the photon lifetimetau_{p} = 1.55ps.

U2 - 10.1109/JQE.1983.1071857

DO - 10.1109/JQE.1983.1071857

M3 - Journal article

SN - 0018-9197

VL - 19

SP - 465

EP - 469

JO - I E E E Journal of Quantum Electronics

JF - I E E E Journal of Quantum Electronics

IS - 3

ER -

Influence of optical feedback on laser frequency spectrum and threshold conditions

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