- All Journals
- Al-Qadisiyah University
- Basrah University
- Kirkuk University
- Mosul University
- The Iraqi Borad for Medical Specialization
- University of Anbar
- University of Technology
- Al Mustafa University
- Al-Zahraa University for Women
- Alnoor University
- Kunooz University
- Misan University
- Ninevah University
- Tikrit University
- University of Al-Hamdaniya
- University of Kerbala
External optical feedback influance on the pulse analysis of the laser including direct plusing involvement | ||
| Journal of Education and Science | ||
| Article 21, Volume 17, Issue 3, 2005, Pages 127-139 PDF (0 K) | ||
| DOI: 10.33899/edusj.2005.81550 | ||
| Authors | ||
| Ragheed Ibraheem; Qudama Hamed; Muzahem Azzawi; Abd Abdullah | ||
| Abstract | ||
| The experimental investigation of the influence of optical feedback on the pulse analysis of GaAlAs laser diode is represented, with an experimental setup designed for this purpose. Optical feedback was constructed with a plane mirror facing the facet of the laser diode at a distance of ( 16 cm ). Phase control and feedback rate were varied according to the external cavity length with the respect of laser diode cavity. Many benefits can be obtained from this research , to improve laser light output with increasing the external differential quantum efficiency by ( 0.7 %), arid threshold reduction by ( 0,5 mA ) with Optical feedback furthermore the experimental result indict that there was a peak shift of the pulse distribution of the laser output towards high frequency by feedback rale was increased. Laser wavelength tuning can be interpreted from there experimental results in additional to the improvement of spectral characteristics with the reduction of FWHM and increase in the intensity of laser output. | ||
| Keywords | ||
| Optical feedback; Laser; Direct ovulation | ||
|
Statistics Article View: 429 PDF Download: 328 |
||