Actively mode-locked fiber laser with feedbcak control system
In this project, a frequency stabilized pulsed laser system is proposed. Two main parts of the system – pulsed laser source and feedback control loop are both investigated analytically for their underlying mechanisms. All the components adopted in the experimental setup are described in detail for t...
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| Other Authors: | |
| Format: | Final Year Project (FYP) |
| Language: | English |
| Published: |
2012
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| Online Access: | http://hdl.handle.net/10356/49625 |
| _version_ | 1826112554718461952 |
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| author | Xue, Jin. |
| author2 | Sheel Aditya |
| author_facet | Sheel Aditya Xue, Jin. |
| author_sort | Xue, Jin. |
| collection | NTU |
| description | In this project, a frequency stabilized pulsed laser system is proposed. Two main parts of the system – pulsed laser source and feedback control loop are both investigated analytically for their underlying mechanisms. All the components adopted in the experimental setup are described in detail for their functions and specifications. The laser source adopted is an actively mode-locked Erbium-doped fiber ring laser with 0.3 nm optical bandwidth, 6 MHz fundamental frequency and 2 GHz modulation frequency. The feedback control loop is based on a piezoelectric tube (PZT) whose size varies with different DC bias strengths. By tightly winding a segment of fiber laser cavity on the PZT, an error signal can be generated by using the output of the laser source to dynamically change the laser cavity length itself and thus the repetition frequency of the output pulse. To verify the function of the proposed system, an experimental demonstration is also conducted in this project, in which a laser pulse train with greatly enhanced stability and significantly reduced noise is observed. |
| first_indexed | 2024-10-01T03:08:57Z |
| format | Final Year Project (FYP) |
| id | ntu-10356/49625 |
| institution | Nanyang Technological University |
| language | English |
| last_indexed | 2024-10-01T03:08:57Z |
| publishDate | 2012 |
| record_format | dspace |
| spelling | ntu-10356/496252023-07-07T16:40:19Z Actively mode-locked fiber laser with feedbcak control system Xue, Jin. Sheel Aditya School of Electrical and Electronic Engineering DRNTU::Engineering::Electrical and electronic engineering::Optics, optoelectronics, photonics In this project, a frequency stabilized pulsed laser system is proposed. Two main parts of the system – pulsed laser source and feedback control loop are both investigated analytically for their underlying mechanisms. All the components adopted in the experimental setup are described in detail for their functions and specifications. The laser source adopted is an actively mode-locked Erbium-doped fiber ring laser with 0.3 nm optical bandwidth, 6 MHz fundamental frequency and 2 GHz modulation frequency. The feedback control loop is based on a piezoelectric tube (PZT) whose size varies with different DC bias strengths. By tightly winding a segment of fiber laser cavity on the PZT, an error signal can be generated by using the output of the laser source to dynamically change the laser cavity length itself and thus the repetition frequency of the output pulse. To verify the function of the proposed system, an experimental demonstration is also conducted in this project, in which a laser pulse train with greatly enhanced stability and significantly reduced noise is observed. Bachelor of Engineering 2012-05-22T07:16:01Z 2012-05-22T07:16:01Z 2012 Final Year Project (FYP) http://hdl.handle.net/10356/49625 en Nanyang Technological University 73 p. application/pdf |
| spellingShingle | DRNTU::Engineering::Electrical and electronic engineering::Optics, optoelectronics, photonics Xue, Jin. Actively mode-locked fiber laser with feedbcak control system |
| title | Actively mode-locked fiber laser with feedbcak control system |
| title_full | Actively mode-locked fiber laser with feedbcak control system |
| title_fullStr | Actively mode-locked fiber laser with feedbcak control system |
| title_full_unstemmed | Actively mode-locked fiber laser with feedbcak control system |
| title_short | Actively mode-locked fiber laser with feedbcak control system |
| title_sort | actively mode locked fiber laser with feedbcak control system |
| topic | DRNTU::Engineering::Electrical and electronic engineering::Optics, optoelectronics, photonics |
| url | http://hdl.handle.net/10356/49625 |
| work_keys_str_mv | AT xuejin activelymodelockedfiberlaserwithfeedbcakcontrolsystem |