Methods for narrowing the emission line of an injection laser
For various mechanisms that govern the line width, theoretical estimates are made of narrowing the emission line of an injection laser with an external resonator. It is noted that if the width of a line emitted by a laser diode without an external feedback ('initial' width) is governed by...
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| Veröffentlicht in: | Sov. J. Quant. Electron. (Engl. Transl.); (United States) 1983-06, Vol.13 (6), p.792-798 |
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| container_end_page | 798 |
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| container_issue | 6 |
| container_start_page | 792 |
| container_title | Sov. J. Quant. Electron. (Engl. Transl.); (United States) |
| container_volume | 13 |
| creator | Belenov, É M Velichanskiĭ, V L Zibrov, A S Nikitin, V V Sautenkov, V A Uskov, A V |
| description | For various mechanisms that govern the line width, theoretical estimates are made of narrowing the emission line of an injection laser with an external resonator. It is noted that if the width of a line emitted by a laser diode without an external feedback ('initial' width) is governed by phase fluctuations owing to the spontaneous noise, then the width of a line emitted by an injection laser with an external resonator is a quadratic function of the line width of the resonator itself. If, however, the initial width is determined by fluctuations of the refractive index of the active medium, then the same dependence is linear. It is found that external resonator configurations used so far have not been optimal. Methods are proposed for introducing high-Q interferometers into the external part of a composite resonator of an injection laser which should make it possible to reduce the width of the emission line of a laser with an external resonator to approximately 1-1000 Hz without altering the dimensions. In addition, the influence of a wideband electronic circuit for automatic phase control (based on an external high-Q interferometer) on the emission spectrum of an injection laser is analyzed. |
| doi_str_mv | 10.1070/QE1983v013n06ABEH004318 |
| format | Article |
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N. Lebedev Physics Institute, Academy of Sciences of the USSR, Moscow</creatorcontrib><description>For various mechanisms that govern the line width, theoretical estimates are made of narrowing the emission line of an injection laser with an external resonator. It is noted that if the width of a line emitted by a laser diode without an external feedback ('initial' width) is governed by phase fluctuations owing to the spontaneous noise, then the width of a line emitted by an injection laser with an external resonator is a quadratic function of the line width of the resonator itself. If, however, the initial width is determined by fluctuations of the refractive index of the active medium, then the same dependence is linear. It is found that external resonator configurations used so far have not been optimal. Methods are proposed for introducing high-Q interferometers into the external part of a composite resonator of an injection laser which should make it possible to reduce the width of the emission line of a laser with an external resonator to approximately 1-1000 Hz without altering the dimensions. In addition, the influence of a wideband electronic circuit for automatic phase control (based on an external high-Q interferometer) on the emission spectrum of an injection laser is analyzed.</description><identifier>ISSN: 0049-1748</identifier><identifier>EISSN: 2169-530X</identifier><identifier>DOI: 10.1070/QE1983v013n06ABEH004318</identifier><language>eng</language><publisher>United States: IOP Publishing</publisher><subject>420300 - Engineering- Lasers- (-1989) ; EMISSION SPECTRA ; ENGINEERING ; LASER CAVITIES ; LASERS ; LINE NARROWING ; LINE WIDTHS ; SEMICONDUCTOR DEVICES ; SEMICONDUCTOR LASERS ; SPECTRA</subject><ispartof>Sov. J. Quant. Electron. (Engl. 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Lebedev Physics Institute, Academy of Sciences of the USSR, Moscow</creatorcontrib><title>Methods for narrowing the emission line of an injection laser</title><title>Sov. J. Quant. Electron. (Engl. Transl.); (United States)</title><description>For various mechanisms that govern the line width, theoretical estimates are made of narrowing the emission line of an injection laser with an external resonator. It is noted that if the width of a line emitted by a laser diode without an external feedback ('initial' width) is governed by phase fluctuations owing to the spontaneous noise, then the width of a line emitted by an injection laser with an external resonator is a quadratic function of the line width of the resonator itself. If, however, the initial width is determined by fluctuations of the refractive index of the active medium, then the same dependence is linear. It is found that external resonator configurations used so far have not been optimal. Methods are proposed for introducing high-Q interferometers into the external part of a composite resonator of an injection laser which should make it possible to reduce the width of the emission line of a laser with an external resonator to approximately 1-1000 Hz without altering the dimensions. In addition, the influence of a wideband electronic circuit for automatic phase control (based on an external high-Q interferometer) on the emission spectrum of an injection laser is analyzed.</description><subject>420300 - Engineering- Lasers- (-1989)</subject><subject>EMISSION SPECTRA</subject><subject>ENGINEERING</subject><subject>LASER CAVITIES</subject><subject>LASERS</subject><subject>LINE NARROWING</subject><subject>LINE WIDTHS</subject><subject>SEMICONDUCTOR DEVICES</subject><subject>SEMICONDUCTOR LASERS</subject><subject>SPECTRA</subject><issn>0049-1748</issn><issn>2169-530X</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>1983</creationdate><recordtype>article</recordtype><recordid>eNqVUU1LAzEQDaJgrf4GgwfBw2o-dvNx8FBL_YCKCAreQjZNbMo2qclW8d-763oTD56GefPeMPMeAMcYnWPE0cXjDEtB3xGmAbHJ1ewWoZJisQNGBDNZVBS97IJRB8oC81Lsg4OcV13LOCUjcHlv22VcZOhigkGnFD98eIXt0kK79jn7GGDjg4XRQR2gDytr2m9QZ5sOwZ7TTbZHP3UMnq9nT9PbYv5wczedzAtDUdUWmsuS1ZJgpAlx3GGJHLdSEE2Zq2tENLGOoZrompXCaGRorUU_4HxRWknH4GTYG3PrVTa-tWZpYgjdMaqqKkY56UinA2mT4tvW5lZ1DxjbNDrYuM2KUFJWgoqOyAeiSTHnZJ3aJL_W6VNhpHpP1R-edkoyKH3c_EN09lvU56H6PBSmiqkJqdRm4egXaMCGFg</recordid><startdate>19830630</startdate><enddate>19830630</enddate><creator>Belenov, É M</creator><creator>Velichanskiĭ, V L</creator><creator>Zibrov, A S</creator><creator>Nikitin, V V</creator><creator>Sautenkov, V A</creator><creator>Uskov, A V</creator><general>IOP Publishing</general><scope>AAYXX</scope><scope>CITATION</scope><scope>8FD</scope><scope>H8D</scope><scope>L7M</scope><scope>OTOTI</scope></search><sort><creationdate>19830630</creationdate><title>Methods for narrowing the emission line of an injection laser</title><author>Belenov, É M ; Velichanskiĭ, V L ; Zibrov, A S ; Nikitin, V V ; Sautenkov, V A ; Uskov, A V</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-c305t-a7946b9210a22f7f190f7e982a36fbb02a2ef60b2ab648ca0c3ba8bb0277d4e93</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>1983</creationdate><topic>420300 - Engineering- Lasers- (-1989)</topic><topic>EMISSION SPECTRA</topic><topic>ENGINEERING</topic><topic>LASER CAVITIES</topic><topic>LASERS</topic><topic>LINE NARROWING</topic><topic>LINE WIDTHS</topic><topic>SEMICONDUCTOR DEVICES</topic><topic>SEMICONDUCTOR LASERS</topic><topic>SPECTRA</topic><toplevel>online_resources</toplevel><creatorcontrib>Belenov, É M</creatorcontrib><creatorcontrib>Velichanskiĭ, V L</creatorcontrib><creatorcontrib>Zibrov, A S</creatorcontrib><creatorcontrib>Nikitin, V V</creatorcontrib><creatorcontrib>Sautenkov, V A</creatorcontrib><creatorcontrib>Uskov, A V</creatorcontrib><creatorcontrib>P. N. Lebedev Physics Institute, Academy of Sciences of the USSR, Moscow</creatorcontrib><collection>CrossRef</collection><collection>Technology Research Database</collection><collection>Aerospace Database</collection><collection>Advanced Technologies Database with Aerospace</collection><collection>OSTI.GOV</collection><jtitle>Sov. J. Quant. Electron. (Engl. Transl.); (United States)</jtitle></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext</fulltext></delivery><addata><au>Belenov, É M</au><au>Velichanskiĭ, V L</au><au>Zibrov, A S</au><au>Nikitin, V V</au><au>Sautenkov, V A</au><au>Uskov, A V</au><aucorp>P. N. Lebedev Physics Institute, Academy of Sciences of the USSR, Moscow</aucorp><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>Methods for narrowing the emission line of an injection laser</atitle><jtitle>Sov. J. Quant. Electron. (Engl. 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Methods are proposed for introducing high-Q interferometers into the external part of a composite resonator of an injection laser which should make it possible to reduce the width of the emission line of a laser with an external resonator to approximately 1-1000 Hz without altering the dimensions. In addition, the influence of a wideband electronic circuit for automatic phase control (based on an external high-Q interferometer) on the emission spectrum of an injection laser is analyzed.</abstract><cop>United States</cop><pub>IOP Publishing</pub><doi>10.1070/QE1983v013n06ABEH004318</doi><tpages>7</tpages></addata></record> |
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| identifier | ISSN: 0049-1748 |
| ispartof | Sov. J. Quant. Electron. (Engl. Transl.); (United States), 1983-06, Vol.13 (6), p.792-798 |
| issn | 0049-1748 2169-530X |
| language | eng |
| recordid | cdi_iop_primary_10_1070_QE1983v013n06ABEH004318 |
| source | IOP Publishing Journals; Institute of Physics (IOP) Journals - HEAL-Link |
| subjects | 420300 - Engineering- Lasers- (-1989) EMISSION SPECTRA ENGINEERING LASER CAVITIES LASERS LINE NARROWING LINE WIDTHS SEMICONDUCTOR DEVICES SEMICONDUCTOR LASERS SPECTRA |
| title | Methods for narrowing the emission line of an injection laser |
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