Femtosecond pulse measurement using optical nonlinearities with a resolution independent of carrier lifetime /
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| Other Authors: | , , |
| Format: | Thesis Book |
| Language: | English |
| Published: |
1992.
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| Subjects: | |
| Online Access: | Link to OAKTrust copy |
| Abstract: | Ultrashort light pulse generation from the actively mode-locked semiconductor laser and femtosecond resolution pulse measuring system have been demonstrated. The shortest pulses, 0.53 ps FWHM correlated width at 0.8 mW average power, from a semiconductor laser have been achieved with active mode-locking using low frequency modulation (~ 1.6 GHz). Timing jitter was extraordinarily low as ~20 fs in 450 fs FWHM correlated pulse width. We report a pulse measuring technique, using optical nonlinearities, which is simple in application but has femtosecond temporal resolution. Independence from carrier lifetime of photodetectors used was proved both analytically and experimentally. Thin film photodetector having high defect density and short carrier lifetime was fabricated using the sputtered amorphous hydrogenated germanium to prove the independence from carrier lifetime by comparing with high and low speed commercial photodetectors. |
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| Item Description: | Typescript (photocopy). Vita. "Major subject: Electrical Engineering." |
| Physical Description: | xi, 94 leaves : illustrations ; 29 cm |
| Bibliography: | Includes bibliographical references. |