Linewidth characteristics of un-cooled fiber grating Fabry–Perot laser controlled by the external optical feedback
The effect of external optical feedback (OFB) on the linewidth characteristics of un-cooled laser module is theoretically investigated. This laser that consists of a Fabry–Perot (FP) laser diode and fiber Bragg grating (FBG) realizes stable operation and relatively low-cost solution. The effects of...
| Main Authors: | , , , |
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| Format: | Article |
| Language: | English |
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Elsevier
2013
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| Online Access: | http://psasir.upm.edu.my/id/eprint/28439/1/Linewidth%20characteristics%20of%20un.pdf |
| _version_ | 1825947316762181632 |
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| author | Hisham, Hisham Kadhum Abas, Ahmad Fauzi Mahdi, Mohd Adzir Muhammad Noor, Ahmad Shukri |
| author_facet | Hisham, Hisham Kadhum Abas, Ahmad Fauzi Mahdi, Mohd Adzir Muhammad Noor, Ahmad Shukri |
| author_sort | Hisham, Hisham Kadhum |
| collection | UPM |
| description | The effect of external optical feedback (OFB) on the linewidth characteristics of un-cooled laser module is theoretically investigated. This laser that consists of a Fabry–Perot (FP) laser diode and fiber Bragg grating (FBG) realizes stable operation and relatively low-cost solution. The effects of external OFB and temperature on linewidth are calculated according to their effect on threshold carrier density (Nth). The temperature dependence (TD) of linewidth characteristics is calculated according to TD of laser parameters instead of well-known Parkovin relationship. Results show that, linewidth decreases as the external OFB reflectivity (Rext) increases. A narrow linewidth which is less than 3 kHz is obtained for Rext ≥ 0.5. In addition, the linewidth is not largely affected by temperature as compared to the DFB lasers. Also, we found that the linewidth temperature coefficient is 0.04 kHz/°C, which is small enough in comparison to 18.5 kHz/°C for the DFB laser. |
| first_indexed | 2024-03-06T08:11:26Z |
| format | Article |
| id | upm.eprints-28439 |
| institution | Universiti Putra Malaysia |
| language | English |
| last_indexed | 2024-03-06T08:11:26Z |
| publishDate | 2013 |
| publisher | Elsevier |
| record_format | dspace |
| spelling | upm.eprints-284392016-04-18T07:53:42Z http://psasir.upm.edu.my/id/eprint/28439/ Linewidth characteristics of un-cooled fiber grating Fabry–Perot laser controlled by the external optical feedback Hisham, Hisham Kadhum Abas, Ahmad Fauzi Mahdi, Mohd Adzir Muhammad Noor, Ahmad Shukri The effect of external optical feedback (OFB) on the linewidth characteristics of un-cooled laser module is theoretically investigated. This laser that consists of a Fabry–Perot (FP) laser diode and fiber Bragg grating (FBG) realizes stable operation and relatively low-cost solution. The effects of external OFB and temperature on linewidth are calculated according to their effect on threshold carrier density (Nth). The temperature dependence (TD) of linewidth characteristics is calculated according to TD of laser parameters instead of well-known Parkovin relationship. Results show that, linewidth decreases as the external OFB reflectivity (Rext) increases. A narrow linewidth which is less than 3 kHz is obtained for Rext ≥ 0.5. In addition, the linewidth is not largely affected by temperature as compared to the DFB lasers. Also, we found that the linewidth temperature coefficient is 0.04 kHz/°C, which is small enough in comparison to 18.5 kHz/°C for the DFB laser. Elsevier 2013 Article PeerReviewed application/pdf en http://psasir.upm.edu.my/id/eprint/28439/1/Linewidth%20characteristics%20of%20un.pdf Hisham, Hisham Kadhum and Abas, Ahmad Fauzi and Mahdi, Mohd Adzir and Muhammad Noor, Ahmad Shukri (2013) Linewidth characteristics of un-cooled fiber grating Fabry–Perot laser controlled by the external optical feedback. Optik, 124 (14). pp. 1763-1766. ISSN 0030-4026; ESSN: 1618-1336 10.1016/j.ijleo.2012.05.004 |
| spellingShingle | Hisham, Hisham Kadhum Abas, Ahmad Fauzi Mahdi, Mohd Adzir Muhammad Noor, Ahmad Shukri Linewidth characteristics of un-cooled fiber grating Fabry–Perot laser controlled by the external optical feedback |
| title | Linewidth characteristics of un-cooled fiber grating Fabry–Perot laser controlled by the external optical feedback |
| title_full | Linewidth characteristics of un-cooled fiber grating Fabry–Perot laser controlled by the external optical feedback |
| title_fullStr | Linewidth characteristics of un-cooled fiber grating Fabry–Perot laser controlled by the external optical feedback |
| title_full_unstemmed | Linewidth characteristics of un-cooled fiber grating Fabry–Perot laser controlled by the external optical feedback |
| title_short | Linewidth characteristics of un-cooled fiber grating Fabry–Perot laser controlled by the external optical feedback |
| title_sort | linewidth characteristics of un cooled fiber grating fabry perot laser controlled by the external optical feedback |
| url | http://psasir.upm.edu.my/id/eprint/28439/1/Linewidth%20characteristics%20of%20un.pdf |
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