Abstract
In this letter, we describe a self-starting optical pulse source generating ultra low noise 15-ps-wide pulses at 10 GHz. It is based on a hybrid optoelectronic oscillator comprising a fiber extended cavity mode-locked diode laser which injection locks a self-oscillating heterojunction bipolar phototransistor. Average jitter levels of 40-43 fs and an amplitude noise of 0.1-0.15% over a frequency range of 500 Hz-15 kHz or 500 Hz-1 MHz were obtained, respectively. The noise is slightly larger, a 57- fs jitter and 0.2% amplitude noise, for a frequency range of 100 Hz-1 MHz. A 10-GHz electrical signal with a low phase noise (-108 dBc/Hz at 10-kHz offset from the carrier) is also generated.
Original language | English |
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Pages (from-to) | 1004-1006 |
Number of pages | 3 |
Journal | IEEE Photonics Technology Letters |
Volume | 14 |
Issue number | 7 |
DOIs | |
State | Published - 1 Jul 2002 |
Externally published | Yes |
Keywords
- Heterojunction bipolar transistors
- Mode-locked lasers
- Optical pulse generation
- Optoelectronic oscillators
- Timing jitter
ASJC Scopus subject areas
- Electronic, Optical and Magnetic Materials
- Atomic and Molecular Physics, and Optics
- Electrical and Electronic Engineering