Abstract
We propose and experimentally demonstrate a novel technique for optical generation of modulated millimeter-wave (mm-wave) by using a gain switched laser (GSL) that is externally injected with a modulated light source. The GSL generates a stream of optical pulses, and these pulses exhibit a small shift in the time domain when the GSL is injected with an on-off keyed (OOK) optical data signal. This time shift can produce a phase modulated mm-wave signal at 60 GHz by suitable optical filtering of the GSL laser output. The system performance was analyzed for data streams at 1.25 Gb/s by using bit-error-rate (BER) measurements for back-to-back (BTB) and 3-km fiber transmission.
Original language | English |
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Article number | 5701658 |
Pages (from-to) | 447-449 |
Number of pages | 3 |
Journal | IEEE Photonics Technology Letters |
Volume | 23 |
Issue number | 7 |
Early online date | 24 Jan 2011 |
DOIs | |
Publication status | Published (in print/issue) - 1 Apr 2011 |
Keywords
- All-optical up-conversion
- gain-switching
- millimeter-wave (mm-wave) generation
- optical fiber communication
- radio-over-fiber (RoF)