| Presentation | 2009-04-17 The study of high quality optical pulse generation using gain switching LD with fiber Bragg grating wavelength selective optical feedback Nobuyasu KITAOKA, Xunjian XU, Koji OMICHI, Koji NONAKA, |
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| Abstract(in Japanese) | (See Japanese page) |
| Abstract(in English) | The gain switching of a laser diode (GS-LD) is one of the most simple short optical pulse generation techniques. However it has several problems of pulse quality. One problem is a large time jitter in rising edge of an optical pulse train. W We focused the seeds of optical pulsed oscillations at LD's when the optical pulses were created. We proposed a way of time jitter suppression to control optical pulse generation timing by using a reflection mirror to be a trigger of the optical pulse generation timing as optical seeds' pulses. We succeed to suppress the fluctuation with only the simple partial reflection mirror. Although the fluctuation was successfully well suppressed, we need to improve the quality of the optical pulse seeds because the generated optical pulses from the LD include much wavelength chirping. In this paper, we report improving the quality of the optical pulse seeds by using a selective wavelength light from a fiber Bragg grating (FBG) and its contribution for the quality of the generated optical pulses from the LD. |
| Keyword(in Japanese) | (See Japanese page) |
| Keyword(in English) | optical short pulse / gain switching laser diode / GS-LD / time jitter / fiber Bragg grating / FBG / optical feed back |
| Paper # | R2009-5,CPM2009-5,OPE2009-5 |
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| Conference Information | |
| Committee | CPM |
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| Conference Date | 2009/4/10(1days) |
| Place (in Japanese) | (See Japanese page) |
| Place (in English) | |
| Topics (in Japanese) | (See Japanese page) |
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| Paper Information | |
| Registration To | Component Parts and Materials (CPM) |
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| Language | JPN |
| Title (in Japanese) | (See Japanese page) |
| Sub Title (in Japanese) | (See Japanese page) |
| Title (in English) | The study of high quality optical pulse generation using gain switching LD with fiber Bragg grating wavelength selective optical feedback |
| Sub Title (in English) | |
| Keyword(1) | optical short pulse |
| Keyword(2) | gain switching laser diode |
| Keyword(3) | GS-LD |
| Keyword(4) | time jitter |
| Keyword(5) | fiber Bragg grating |
| Keyword(6) | FBG |
| Keyword(7) | optical feed back |
| 1st Author's Name | Nobuyasu KITAOKA |
| 1st Author's Affiliation | Graduate Course of Frontier Engineering, Kochi University of Technology() |
| 2nd Author's Name | Xunjian XU |
| 2nd Author's Affiliation | Graduate Course of Frontier Engineering, Kochi University of Technology |
| 3rd Author's Name | Koji OMICHI |
| 3rd Author's Affiliation | Optics and Electronics Laboratory, Fujikura Ltd. |
| 4th Author's Name | Koji NONAKA |
| 4th Author's Affiliation | Graduate Course of Frontier Engineering, Kochi University of Technology |
| Date | 2009-04-17 |
| Paper # | R2009-5,CPM2009-5,OPE2009-5 |
| Volume (vol) | vol.109 |
| Number (no) | 7 |
| Page | pp.pp.- |
| #Pages | 5 |
| Date of Issue | |