Photo-detectors integrated with resonant tunneling diodes
We report on photo-detectors consisting of an optical waveguide that incorporates a resonant tunneling diode (RTD). Operating at wavelengths around 1.55 µm in the optical communications C band we achieve maximum sensitivities of around 0.29 A/W which is dependent on the bias voltage. This is due to...
| Main Authors: | , , , , |
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| Format: | Journal Article |
| Published: |
2013
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| Online Access: | http://hdl.handle.net/20.500.11937/6673 |
| _version_ | 1848745145168560128 |
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| author | Romeira, B. Pessoa, L. Salgado, H. Ironside, Charlie Figueiredo, J. |
| author_facet | Romeira, B. Pessoa, L. Salgado, H. Ironside, Charlie Figueiredo, J. |
| author_sort | Romeira, B. |
| building | Curtin Institutional Repository |
| collection | Online Access |
| description | We report on photo-detectors consisting of an optical waveguide that incorporates a resonant tunneling diode (RTD). Operating at wavelengths around 1.55 µm in the optical communications C band we achieve maximum sensitivities of around 0.29 A/W which is dependent on the bias voltage. This is due to the nature of RTD nonlinear current-voltage characteristic that has a negative differential resistance (NDR) region. The resonant tunneling diode photo-detector (RTD-PD) can be operated in either non-oscillating or oscillating regimes depending on the bias voltage quiescent point. The oscillating regime is apparent when the RTD-PD is biased in the NDR region giving rise to electrical gain and microwave self-sustained oscillations Taking advantage of the RTD's NDR distinctive characteristics, we demonstrate efficient detection of gigahertz (GHz) modulated optical carriers and optical control of a RTD GHz oscillator. RTD-PD based devices can have applications in generation and optical control of GHz low-phase noise oscillators, clock recovery systems, and fiber optic enabled radio frequency communication systems. © 2013 by the authors; licensee MDPI, Basel, Switzerland. |
| first_indexed | 2025-11-14T06:12:42Z |
| format | Journal Article |
| id | curtin-20.500.11937-6673 |
| institution | Curtin University Malaysia |
| institution_category | Local University |
| last_indexed | 2025-11-14T06:12:42Z |
| publishDate | 2013 |
| recordtype | eprints |
| repository_type | Digital Repository |
| spelling | curtin-20.500.11937-66732017-09-13T14:34:27Z Photo-detectors integrated with resonant tunneling diodes Romeira, B. Pessoa, L. Salgado, H. Ironside, Charlie Figueiredo, J. We report on photo-detectors consisting of an optical waveguide that incorporates a resonant tunneling diode (RTD). Operating at wavelengths around 1.55 µm in the optical communications C band we achieve maximum sensitivities of around 0.29 A/W which is dependent on the bias voltage. This is due to the nature of RTD nonlinear current-voltage characteristic that has a negative differential resistance (NDR) region. The resonant tunneling diode photo-detector (RTD-PD) can be operated in either non-oscillating or oscillating regimes depending on the bias voltage quiescent point. The oscillating regime is apparent when the RTD-PD is biased in the NDR region giving rise to electrical gain and microwave self-sustained oscillations Taking advantage of the RTD's NDR distinctive characteristics, we demonstrate efficient detection of gigahertz (GHz) modulated optical carriers and optical control of a RTD GHz oscillator. RTD-PD based devices can have applications in generation and optical control of GHz low-phase noise oscillators, clock recovery systems, and fiber optic enabled radio frequency communication systems. © 2013 by the authors; licensee MDPI, Basel, Switzerland. 2013 Journal Article http://hdl.handle.net/20.500.11937/6673 10.3390/s130709464 unknown |
| spellingShingle | Romeira, B. Pessoa, L. Salgado, H. Ironside, Charlie Figueiredo, J. Photo-detectors integrated with resonant tunneling diodes |
| title | Photo-detectors integrated with resonant tunneling diodes |
| title_full | Photo-detectors integrated with resonant tunneling diodes |
| title_fullStr | Photo-detectors integrated with resonant tunneling diodes |
| title_full_unstemmed | Photo-detectors integrated with resonant tunneling diodes |
| title_short | Photo-detectors integrated with resonant tunneling diodes |
| title_sort | photo-detectors integrated with resonant tunneling diodes |
| url | http://hdl.handle.net/20.500.11937/6673 |