Abstract
A novel intensity modulator for second-harmonic waveguide lasers is proposed and theoretically analyzed. Noise caused by spectrum broadening in a diode-laser direct-modulation scheme is avoided in the suggested structure by using the electro-optic effect to modulate the phase mismatch in the frequency-doubling process. In the analysis the influence of waveguide parameters and electrode dimensions on the switching voltage, the output power, and the modulation bandwidth is evaluated. The results suggest that a switching voltage below the 5-V transistor-transistor logic level in digital systems is feasible and that, in a traveling-wave strip-electrode configuration, a modulation bandwidth in the gigahertz range can be obtained.
| Original language | English |
|---|---|
| Pages (from-to) | 459-468 |
| Number of pages | 10 |
| Journal | Journal of the Optical Society of America B: Optical Physics |
| Volume | 10 |
| Issue number | 3 |
| DOIs | |
| Publication status | Published - 1993 Jan 1 |
ASJC Scopus subject areas
- Statistical and Nonlinear Physics
- Atomic and Molecular Physics, and Optics
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Helmfrid, S., Tatsuno, K., & Ito, K. (1993). Theoretical study of a modulator for a waveguide second-harmonic generator. Journal of the Optical Society of America B: Optical Physics, 10(3), 459-468. https://doi.org/10.1364/JOSAB.10.000459