High brightness laser source based on polarization coupling of two diode lasers with asymmetric feedback

B. Thestrup; M. Chi; B. Sass; P.M. Petersen

doi:10.1063/1.1540218

High brightness laser source based on polarization coupling of two diode lasers with asymmetric feedback

B. Thestrup, M. Chi, B. Sass, P.M. Petersen

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

Abstract

In this letter, we show that polarization coupling and asymmetric diode-laser feedback can be used to combine two diode-laser beams with low spatial coherence into a single beam with high spatial coherence. The coupled laser source is based on two similar laser systems each consisting of a 1 mumx200 mum broad area laser diode applied with a specially designed feedback circuit. When operating at two times threshold, 50% of the freely running system output power is obtained in a single beam with an M-2 beam quality factor of 1.6+/-0.1, whereas the M-2 values of the two freely running diode lasers are 29+/-1 and 34+/-1, respectively. (C) 2003 American Institute of Physics.

Original language	English
Journal	Applied Physics Letters
Volume	82
Issue number	5
Pages (from-to)	680-682
ISSN	0003-6951
DOIs	https://doi.org/10.1063/1.1540218
Publication status	Published - 2003

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title = "High brightness laser source based on polarization coupling of two diode lasers with asymmetric feedback",

abstract = "In this letter, we show that polarization coupling and asymmetric diode-laser feedback can be used to combine two diode-laser beams with low spatial coherence into a single beam with high spatial coherence. The coupled laser source is based on two similar laser systems each consisting of a 1 mumx200 mum broad area laser diode applied with a specially designed feedback circuit. When operating at two times threshold, 50% of the freely running system output power is obtained in a single beam with an M-2 beam quality factor of 1.6+/-0.1, whereas the M-2 values of the two freely running diode lasers are 29+/-1 and 34+/-1, respectively. (C) 2003 American Institute of Physics. ",

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T1 - High brightness laser source based on polarization coupling of two diode lasers with asymmetric feedback

AU - Thestrup, B.

AU - Chi, M.

AU - Sass, B.

AU - Petersen, P.M.

PY - 2003

Y1 - 2003

N2 - In this letter, we show that polarization coupling and asymmetric diode-laser feedback can be used to combine two diode-laser beams with low spatial coherence into a single beam with high spatial coherence. The coupled laser source is based on two similar laser systems each consisting of a 1 mumx200 mum broad area laser diode applied with a specially designed feedback circuit. When operating at two times threshold, 50% of the freely running system output power is obtained in a single beam with an M-2 beam quality factor of 1.6+/-0.1, whereas the M-2 values of the two freely running diode lasers are 29+/-1 and 34+/-1, respectively. (C) 2003 American Institute of Physics.

AB - In this letter, we show that polarization coupling and asymmetric diode-laser feedback can be used to combine two diode-laser beams with low spatial coherence into a single beam with high spatial coherence. The coupled laser source is based on two similar laser systems each consisting of a 1 mumx200 mum broad area laser diode applied with a specially designed feedback circuit. When operating at two times threshold, 50% of the freely running system output power is obtained in a single beam with an M-2 beam quality factor of 1.6+/-0.1, whereas the M-2 values of the two freely running diode lasers are 29+/-1 and 34+/-1, respectively. (C) 2003 American Institute of Physics.

KW - 6-I optik

U2 - 10.1063/1.1540218

DO - 10.1063/1.1540218

M3 - Journal article

VL - 82

SP - 680

EP - 682

JO - Applied Physics Letters

JF - Applied Physics Letters

SN - 0003-6951

IS - 5

ER -