Efficient and low-threshold Cr4+:YAG double-clad crystal fiber laser
A significant advancement of cw lasing in Cr4+:Y3Al5O12 (Cr4+:YAG) double-clad crystal fiber grown by the codrawing laser-heated pedestal growth technique was demonstrated at RT. The optical-to-optical slope efficiency of 33.9% is the highest, to the best of our knowledge, among all Cr4+:YAG lasers,...
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| Veröffentlicht in: | Optics letters 2011-03, Vol.36 (6), p.784-786 |
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| container_title | Optics letters |
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| creator | LAI, Chien-Chih KE, Chih-Peng LIU, Shih-Kun JHENG, Dong-Yo WANG, Ding-Jie CHEN, Ming-Yen LI, Yu-Shaung YEH, Pinghui S HANG, Sheng-Lung |
| description | A significant advancement of cw lasing in Cr4+:Y3Al5O12 (Cr4+:YAG) double-clad crystal fiber grown by the codrawing laser-heated pedestal growth technique was demonstrated at RT. The optical-to-optical slope efficiency of 33.9% is the highest, to the best of our knowledge, among all Cr4+:YAG lasers, whether they are in bulk or fiber forms. The low-threshold lasing of 78.2 mW and high efficiency are in good agreement with the simulation. The keys to the high laser efficiency are twofold: one is the improved Cr4+ emission cross section and fluorescence lifetime due to release of the strain on the distorted Cr4+ tetrahedron, which also mitigates photobleaching in Cr4+:YAG; the other is the improved core uniformity at long fiber lengths. In addition, because of the low threshold, the impact of excited state absorption of the pump light is significantly reduced. The effects of crystal-orientation, self-selected, and pump-dependent linear polarization states were also addressed. |
| doi_str_mv | 10.1364/OL.36.000784 |
| format | Article |
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The optical-to-optical slope efficiency of 33.9% is the highest, to the best of our knowledge, among all Cr4+:YAG lasers, whether they are in bulk or fiber forms. The low-threshold lasing of 78.2 mW and high efficiency are in good agreement with the simulation. The keys to the high laser efficiency are twofold: one is the improved Cr4+ emission cross section and fluorescence lifetime due to release of the strain on the distorted Cr4+ tetrahedron, which also mitigates photobleaching in Cr4+:YAG; the other is the improved core uniformity at long fiber lengths. In addition, because of the low threshold, the impact of excited state absorption of the pump light is significantly reduced. 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The optical-to-optical slope efficiency of 33.9% is the highest, to the best of our knowledge, among all Cr4+:YAG lasers, whether they are in bulk or fiber forms. The low-threshold lasing of 78.2 mW and high efficiency are in good agreement with the simulation. The keys to the high laser efficiency are twofold: one is the improved Cr4+ emission cross section and fluorescence lifetime due to release of the strain on the distorted Cr4+ tetrahedron, which also mitigates photobleaching in Cr4+:YAG; the other is the improved core uniformity at long fiber lengths. In addition, because of the low threshold, the impact of excited state absorption of the pump light is significantly reduced. The effects of crystal-orientation, self-selected, and pump-dependent linear polarization states were also addressed.</description><subject>Exact sciences and technology</subject><subject>Fiber lasers</subject><subject>Fundamental areas of phenomenology (including applications)</subject><subject>Lasers</subject><subject>Optics</subject><subject>Physics</subject><issn>0146-9592</issn><issn>1539-4794</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2011</creationdate><recordtype>article</recordtype><recordid>eNpFz8FLwzAYBfAgipvTm2fpRTxIa5IvaRpvY84pDHbRg6fyNUlZJWtn0iL77y048fQuPx7vEXLNaMYgFw-bdQZ5RilVhTghUyZBp0JpcUqmlIk81VLzCbmI8XM0uQI4JxPOBIW84FPytKzrxjSu7RNsbeK777TfBhe3nbfJIoj7x4_5KrHdUHmXGo82MeEQe_RJ3VQuJB6jC5fkrEYf3dUxZ-T9efm2eEnXm9XrYr5O90zRPq0gR2UZKrC24K6StrIFACpFpWOmGOch4xwlCtBCCZRa0EJzMFBDLinMyN1v7z50X4OLfblronHeY-u6IZaFVFzTEY7y5iiHaudsuQ_NDsOh_Ds-gtsjwGjQ1wFb08R_J6iiQnL4ASQSZBA</recordid><startdate>20110315</startdate><enddate>20110315</enddate><creator>LAI, Chien-Chih</creator><creator>KE, Chih-Peng</creator><creator>LIU, Shih-Kun</creator><creator>JHENG, Dong-Yo</creator><creator>WANG, Ding-Jie</creator><creator>CHEN, Ming-Yen</creator><creator>LI, Yu-Shaung</creator><creator>YEH, Pinghui S</creator><creator>HANG, Sheng-Lung</creator><general>Optical Society of America</general><scope>IQODW</scope><scope>NPM</scope><scope>7X8</scope></search><sort><creationdate>20110315</creationdate><title>Efficient and low-threshold Cr4+:YAG double-clad crystal fiber laser</title><author>LAI, Chien-Chih ; KE, Chih-Peng ; LIU, Shih-Kun ; JHENG, Dong-Yo ; WANG, Ding-Jie ; CHEN, Ming-Yen ; LI, Yu-Shaung ; YEH, Pinghui S ; HANG, Sheng-Lung</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-p170t-b36a7d1a73dd82eb5dbd833a7705e1c8006a122a5a439474a59408923c3f36503</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>2011</creationdate><topic>Exact sciences and technology</topic><topic>Fiber lasers</topic><topic>Fundamental areas of phenomenology (including applications)</topic><topic>Lasers</topic><topic>Optics</topic><topic>Physics</topic><toplevel>peer_reviewed</toplevel><toplevel>online_resources</toplevel><creatorcontrib>LAI, Chien-Chih</creatorcontrib><creatorcontrib>KE, Chih-Peng</creatorcontrib><creatorcontrib>LIU, Shih-Kun</creatorcontrib><creatorcontrib>JHENG, Dong-Yo</creatorcontrib><creatorcontrib>WANG, Ding-Jie</creatorcontrib><creatorcontrib>CHEN, Ming-Yen</creatorcontrib><creatorcontrib>LI, Yu-Shaung</creatorcontrib><creatorcontrib>YEH, Pinghui S</creatorcontrib><creatorcontrib>HANG, Sheng-Lung</creatorcontrib><collection>Pascal-Francis</collection><collection>PubMed</collection><collection>MEDLINE - Academic</collection><jtitle>Optics letters</jtitle></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext</fulltext></delivery><addata><au>LAI, Chien-Chih</au><au>KE, Chih-Peng</au><au>LIU, Shih-Kun</au><au>JHENG, Dong-Yo</au><au>WANG, Ding-Jie</au><au>CHEN, Ming-Yen</au><au>LI, Yu-Shaung</au><au>YEH, Pinghui S</au><au>HANG, Sheng-Lung</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>Efficient and low-threshold Cr4+:YAG double-clad crystal fiber laser</atitle><jtitle>Optics letters</jtitle><addtitle>Opt Lett</addtitle><date>2011-03-15</date><risdate>2011</risdate><volume>36</volume><issue>6</issue><spage>784</spage><epage>786</epage><pages>784-786</pages><issn>0146-9592</issn><eissn>1539-4794</eissn><coden>OPLEDP</coden><abstract>A significant advancement of cw lasing in Cr4+:Y3Al5O12 (Cr4+:YAG) double-clad crystal fiber grown by the codrawing laser-heated pedestal growth technique was demonstrated at RT. The optical-to-optical slope efficiency of 33.9% is the highest, to the best of our knowledge, among all Cr4+:YAG lasers, whether they are in bulk or fiber forms. The low-threshold lasing of 78.2 mW and high efficiency are in good agreement with the simulation. The keys to the high laser efficiency are twofold: one is the improved Cr4+ emission cross section and fluorescence lifetime due to release of the strain on the distorted Cr4+ tetrahedron, which also mitigates photobleaching in Cr4+:YAG; the other is the improved core uniformity at long fiber lengths. In addition, because of the low threshold, the impact of excited state absorption of the pump light is significantly reduced. The effects of crystal-orientation, self-selected, and pump-dependent linear polarization states were also addressed.</abstract><cop>Washington, DC</cop><pub>Optical Society of America</pub><pmid>21403682</pmid><doi>10.1364/OL.36.000784</doi><tpages>3</tpages></addata></record> |
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| subjects | Exact sciences and technology Fiber lasers Fundamental areas of phenomenology (including applications) Lasers Optics Physics |
| title | Efficient and low-threshold Cr4+:YAG double-clad crystal fiber laser |
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